./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5506d4c7458a400c41a33af3f6404f1e04b9f2e97e99f1fb53b74acf6bf59baf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:51:42,689 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:51:42,795 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:51:42,801 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:51:42,802 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:51:42,851 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:51:42,854 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:51:42,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:51:42,855 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:51:42,855 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:51:42,856 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:51:42,856 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:51:42,856 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:51:42,857 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:51:42,858 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:51:42,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:51:42,860 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:51:42,860 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:51:42,860 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:51:42,861 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:51:42,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:51:42,861 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:51:42,861 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:51:42,861 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:51:42,861 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:51:42,862 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:51:42,862 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:51:42,862 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:51:42,862 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:51:42,862 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:51:42,862 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:51:42,863 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:51:42,863 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:51:42,863 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:51:42,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:51:42,863 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:51:42,863 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:51:42,863 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:51:42,863 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:51:42,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:51:42,864 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:51:42,864 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:51:42,864 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:51:42,864 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:51:42,864 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:51:42,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:51:42,864 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:51:42,864 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:51:42,864 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:51:42,865 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:51:42,865 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5506d4c7458a400c41a33af3f6404f1e04b9f2e97e99f1fb53b74acf6bf59baf [2024-11-28 04:51:43,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:51:43,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:51:43,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:51:43,221 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:51:43,222 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:51:43,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound50.c [2024-11-28 04:51:46,762 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/data/03b3d65c4/54a1f96ed64343b284423d71c28c30df/FLAG2ff629856 [2024-11-28 04:51:47,096 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:51:47,097 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound50.c [2024-11-28 04:51:47,109 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/data/03b3d65c4/54a1f96ed64343b284423d71c28c30df/FLAG2ff629856 [2024-11-28 04:51:47,151 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/data/03b3d65c4/54a1f96ed64343b284423d71c28c30df [2024-11-28 04:51:47,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:51:47,165 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:51:47,168 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:51:47,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:51:47,198 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:51:47,203 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:51:47" (1/1) ... [2024-11-28 04:51:47,205 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4f361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:47, skipping insertion in model container [2024-11-28 04:51:47,208 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:51:47" (1/1) ... [2024-11-28 04:51:47,237 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:51:47,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:51:47,500 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:51:47,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:51:47,543 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:51:47,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:47 WrapperNode [2024-11-28 04:51:47,544 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:51:47,545 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:51:47,546 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:51:47,546 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:51:47,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:47" (1/1) ... [2024-11-28 04:51:47,563 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:47" (1/1) ... [2024-11-28 04:51:47,602 INFO L138 Inliner]: procedures = 14, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 101 [2024-11-28 04:51:47,607 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:51:47,607 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:51:47,608 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:51:47,608 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:51:47,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:47" (1/1) ... [2024-11-28 04:51:47,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:47" (1/1) ... [2024-11-28 04:51:47,626 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:47" (1/1) ... [2024-11-28 04:51:47,653 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-28 04:51:47,654 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:47" (1/1) ... [2024-11-28 04:51:47,654 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:47" (1/1) ... [2024-11-28 04:51:47,660 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:47" (1/1) ... [2024-11-28 04:51:47,665 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:47" (1/1) ... [2024-11-28 04:51:47,675 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:47" (1/1) ... [2024-11-28 04:51:47,676 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:47" (1/1) ... [2024-11-28 04:51:47,679 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:47" (1/1) ... [2024-11-28 04:51:47,681 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:51:47,687 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:51:47,688 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:51:47,689 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:51:47,690 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:47" (1/1) ... [2024-11-28 04:51:47,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:51:47,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:47,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:51:47,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:51:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:51:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:51:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:51:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:51:47,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:51:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:51:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:51:47,872 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:51:47,874 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:51:48,219 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2024-11-28 04:51:48,219 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:51:48,238 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:51:48,239 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:51:48,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:51:48 BoogieIcfgContainer [2024-11-28 04:51:48,239 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:51:48,243 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:51:48,243 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:51:48,250 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:51:48,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:51:47" (1/3) ... [2024-11-28 04:51:48,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2319ce7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:51:48, skipping insertion in model container [2024-11-28 04:51:48,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:51:47" (2/3) ... [2024-11-28 04:51:48,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2319ce7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:51:48, skipping insertion in model container [2024-11-28 04:51:48,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:51:48" (3/3) ... [2024-11-28 04:51:48,256 INFO L128 eAbstractionObserver]: Analyzing ICFG hard2_unwindbound50.c [2024-11-28 04:51:48,277 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:51:48,279 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hard2_unwindbound50.c that has 2 procedures, 82 locations, 1 initial locations, 2 loop locations, and 28 error locations. [2024-11-28 04:51:48,363 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:51:48,383 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6d0f470d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:51:48,383 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-28 04:51:48,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 45 states have (on average 1.8) internal successors, (81), 73 states have internal predecessors, (81), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 04:51:48,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-28 04:51:48,398 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:48,399 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-28 04:51:48,399 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:51:48,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:48,407 INFO L85 PathProgramCache]: Analyzing trace with hash 925636, now seen corresponding path program 1 times [2024-11-28 04:51:48,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:48,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728747030] [2024-11-28 04:51:48,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:48,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:48,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:48,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:48,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728747030] [2024-11-28 04:51:48,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728747030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:48,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:48,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:51:48,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302177247] [2024-11-28 04:51:48,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:48,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:51:48,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:48,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:51:48,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:51:48,723 INFO L87 Difference]: Start difference. First operand has 82 states, 45 states have (on average 1.8) internal successors, (81), 73 states have internal predecessors, (81), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:51:48,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:48,869 INFO L93 Difference]: Finished difference Result 165 states and 202 transitions. [2024-11-28 04:51:48,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:51:48,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-28 04:51:48,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:48,882 INFO L225 Difference]: With dead ends: 165 [2024-11-28 04:51:48,883 INFO L226 Difference]: Without dead ends: 78 [2024-11-28 04:51:48,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:51:48,895 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 4 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:48,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 253 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:51:48,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-28 04:51:48,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-28 04:51:48,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 44 states have (on average 1.7272727272727273) internal successors, (76), 71 states have internal predecessors, (76), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 04:51:48,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2024-11-28 04:51:48,962 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 4 [2024-11-28 04:51:48,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:48,963 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2024-11-28 04:51:48,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:51:48,964 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2024-11-28 04:51:48,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-28 04:51:48,966 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:48,966 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:48,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:51:48,967 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:51:48,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:48,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1496348935, now seen corresponding path program 1 times [2024-11-28 04:51:48,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:48,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750779676] [2024-11-28 04:51:48,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:48,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:48,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:51:49,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1641919713] [2024-11-28 04:51:49,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:49,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:49,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:49,004 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:49,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:51:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:49,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:51:49,108 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:49,249 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:51:49,249 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:49,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:49,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750779676] [2024-11-28 04:51:49,250 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:51:49,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641919713] [2024-11-28 04:51:49,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641919713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:49,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:49,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:51:49,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202922337] [2024-11-28 04:51:49,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:49,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:51:49,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:49,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:51:49,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:51:49,254 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:51:49,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:49,458 INFO L93 Difference]: Finished difference Result 167 states and 191 transitions. [2024-11-28 04:51:49,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:51:49,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-11-28 04:51:49,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:49,461 INFO L225 Difference]: With dead ends: 167 [2024-11-28 04:51:49,461 INFO L226 Difference]: Without dead ends: 113 [2024-11-28 04:51:49,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:51:49,463 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 29 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:49,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 118 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:51:49,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-28 04:51:49,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 101. [2024-11-28 04:51:49,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 62 states have (on average 1.6774193548387097) internal successors, (104), 89 states have internal predecessors, (104), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:51:49,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 124 transitions. [2024-11-28 04:51:49,477 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 124 transitions. Word has length 17 [2024-11-28 04:51:49,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:49,479 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 124 transitions. [2024-11-28 04:51:49,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:51:49,480 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 124 transitions. [2024-11-28 04:51:49,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 04:51:49,482 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:49,482 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:49,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:49,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:49,683 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:51:49,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:49,684 INFO L85 PathProgramCache]: Analyzing trace with hash 328891425, now seen corresponding path program 1 times [2024-11-28 04:51:49,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:49,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146850158] [2024-11-28 04:51:49,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:49,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:49,893 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:51:49,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:49,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146850158] [2024-11-28 04:51:49,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146850158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:49,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:49,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:51:49,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066157978] [2024-11-28 04:51:49,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:49,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:51:49,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:49,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:51:49,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:51:49,896 INFO L87 Difference]: Start difference. First operand 101 states and 124 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:51:49,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:49,978 INFO L93 Difference]: Finished difference Result 113 states and 131 transitions. [2024-11-28 04:51:49,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:51:49,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-11-28 04:51:49,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:49,981 INFO L225 Difference]: With dead ends: 113 [2024-11-28 04:51:49,981 INFO L226 Difference]: Without dead ends: 111 [2024-11-28 04:51:49,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:51:49,983 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 23 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:49,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 131 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:51:49,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-28 04:51:50,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 101. [2024-11-28 04:51:50,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 62 states have (on average 1.6451612903225807) internal successors, (102), 89 states have internal predecessors, (102), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:51:50,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 122 transitions. [2024-11-28 04:51:50,005 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 122 transitions. Word has length 25 [2024-11-28 04:51:50,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:50,009 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 122 transitions. [2024-11-28 04:51:50,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:51:50,010 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 122 transitions. [2024-11-28 04:51:50,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-28 04:51:50,011 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:50,011 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:50,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:51:50,011 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:51:50,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:50,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1605698107, now seen corresponding path program 1 times [2024-11-28 04:51:50,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:50,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589158213] [2024-11-28 04:51:50,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:50,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:50,305 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:51:50,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:50,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589158213] [2024-11-28 04:51:50,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589158213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:50,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:50,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:51:50,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737926704] [2024-11-28 04:51:50,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:50,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:51:50,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:50,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:51:50,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:51:50,307 INFO L87 Difference]: Start difference. First operand 101 states and 122 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:51:50,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:50,524 INFO L93 Difference]: Finished difference Result 124 states and 137 transitions. [2024-11-28 04:51:50,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:51:50,525 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2024-11-28 04:51:50,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:50,526 INFO L225 Difference]: With dead ends: 124 [2024-11-28 04:51:50,526 INFO L226 Difference]: Without dead ends: 123 [2024-11-28 04:51:50,526 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:51:50,527 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 46 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:50,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 380 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:51:50,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-28 04:51:50,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 105. [2024-11-28 04:51:50,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 65 states have (on average 1.6) internal successors, (104), 92 states have internal predecessors, (104), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:51:50,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 124 transitions. [2024-11-28 04:51:50,541 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 124 transitions. Word has length 26 [2024-11-28 04:51:50,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:50,542 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 124 transitions. [2024-11-28 04:51:50,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:51:50,542 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 124 transitions. [2024-11-28 04:51:50,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-28 04:51:50,543 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:50,543 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:50,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:51:50,543 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:51:50,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:50,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1762966159, now seen corresponding path program 1 times [2024-11-28 04:51:50,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:50,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503621577] [2024-11-28 04:51:50,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:50,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:50,768 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:51:50,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:50,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503621577] [2024-11-28 04:51:50,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503621577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:50,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:50,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:51:50,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742282209] [2024-11-28 04:51:50,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:50,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:51:50,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:50,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:51:50,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:51:50,770 INFO L87 Difference]: Start difference. First operand 105 states and 124 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:51:50,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:50,917 INFO L93 Difference]: Finished difference Result 123 states and 139 transitions. [2024-11-28 04:51:50,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:51:50,918 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2024-11-28 04:51:50,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:50,919 INFO L225 Difference]: With dead ends: 123 [2024-11-28 04:51:50,919 INFO L226 Difference]: Without dead ends: 114 [2024-11-28 04:51:50,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:51:50,921 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 21 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:50,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 419 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:51:50,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-28 04:51:50,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 109. [2024-11-28 04:51:50,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 68 states have (on average 1.5441176470588236) internal successors, (105), 95 states have internal predecessors, (105), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:51:50,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 125 transitions. [2024-11-28 04:51:50,949 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 125 transitions. Word has length 27 [2024-11-28 04:51:50,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:50,949 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 125 transitions. [2024-11-28 04:51:50,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:51:50,950 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 125 transitions. [2024-11-28 04:51:50,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-28 04:51:50,951 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:50,951 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:50,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:51:50,951 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:51:50,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:50,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1993361642, now seen corresponding path program 1 times [2024-11-28 04:51:50,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:50,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864434800] [2024-11-28 04:51:50,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:50,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:51:50,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1086656126] [2024-11-28 04:51:50,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:50,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:50,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:51,004 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:51,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:51:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:51,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:51:51,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:51,141 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:51:51,141 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:51,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:51,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864434800] [2024-11-28 04:51:51,142 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:51:51,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086656126] [2024-11-28 04:51:51,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086656126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:51,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:51,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:51:51,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693893915] [2024-11-28 04:51:51,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:51,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:51:51,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:51,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:51:51,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:51:51,146 INFO L87 Difference]: Start difference. First operand 109 states and 125 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:51:51,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:51,256 INFO L93 Difference]: Finished difference Result 149 states and 175 transitions. [2024-11-28 04:51:51,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:51:51,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2024-11-28 04:51:51,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:51,259 INFO L225 Difference]: With dead ends: 149 [2024-11-28 04:51:51,260 INFO L226 Difference]: Without dead ends: 145 [2024-11-28 04:51:51,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:51:51,263 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 45 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:51,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 105 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:51:51,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-28 04:51:51,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 129. [2024-11-28 04:51:51,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 86 states have (on average 1.558139534883721) internal successors, (134), 113 states have internal predecessors, (134), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:51:51,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 158 transitions. [2024-11-28 04:51:51,293 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 158 transitions. Word has length 29 [2024-11-28 04:51:51,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:51,294 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 158 transitions. [2024-11-28 04:51:51,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:51:51,294 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 158 transitions. [2024-11-28 04:51:51,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-28 04:51:51,296 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:51,296 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:51,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:51,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:51,497 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:51:51,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:51,498 INFO L85 PathProgramCache]: Analyzing trace with hash -244664895, now seen corresponding path program 1 times [2024-11-28 04:51:51,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:51,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523698319] [2024-11-28 04:51:51,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:51,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:51,692 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:51:51,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:51,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523698319] [2024-11-28 04:51:51,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523698319] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:51,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828733897] [2024-11-28 04:51:51,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:51,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:51,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:51,695 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:51,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:51:51,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:51,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:51:51,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:51,944 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:51:51,944 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:51,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828733897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:51,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:51:51,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-28 04:51:51,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126050929] [2024-11-28 04:51:51,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:51,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:51:51,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:51,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:51:51,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:51:51,946 INFO L87 Difference]: Start difference. First operand 129 states and 158 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:51:52,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:52,004 INFO L93 Difference]: Finished difference Result 138 states and 166 transitions. [2024-11-28 04:51:52,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:51:52,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2024-11-28 04:51:52,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:52,006 INFO L225 Difference]: With dead ends: 138 [2024-11-28 04:51:52,006 INFO L226 Difference]: Without dead ends: 137 [2024-11-28 04:51:52,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:51:52,007 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 19 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:52,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 198 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:51:52,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-28 04:51:52,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 132. [2024-11-28 04:51:52,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 89 states have (on average 1.5280898876404494) internal successors, (136), 115 states have internal predecessors, (136), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:51:52,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 160 transitions. [2024-11-28 04:51:52,047 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 160 transitions. Word has length 30 [2024-11-28 04:51:52,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:52,047 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 160 transitions. [2024-11-28 04:51:52,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:51:52,047 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 160 transitions. [2024-11-28 04:51:52,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 04:51:52,048 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:52,048 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:52,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:51:52,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:52,249 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:51:52,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:52,250 INFO L85 PathProgramCache]: Analyzing trace with hash -65121192, now seen corresponding path program 1 times [2024-11-28 04:51:52,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:52,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280623064] [2024-11-28 04:51:52,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:52,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:51:52,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1149915485] [2024-11-28 04:51:52,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:52,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:52,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:52,273 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:52,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:51:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:52,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:51:52,343 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:52,503 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:51:52,503 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:52,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:52,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280623064] [2024-11-28 04:51:52,503 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:51:52,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149915485] [2024-11-28 04:51:52,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149915485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:52,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:52,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:51:52,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996791302] [2024-11-28 04:51:52,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:52,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:51:52,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:52,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:51:52,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:51:52,505 INFO L87 Difference]: Start difference. First operand 132 states and 160 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:51:52,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:52,600 INFO L93 Difference]: Finished difference Result 146 states and 167 transitions. [2024-11-28 04:51:52,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:51:52,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2024-11-28 04:51:52,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:52,602 INFO L225 Difference]: With dead ends: 146 [2024-11-28 04:51:52,603 INFO L226 Difference]: Without dead ends: 144 [2024-11-28 04:51:52,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:51:52,604 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 38 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:52,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 96 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:51:52,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-28 04:51:52,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 133. [2024-11-28 04:51:52,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 90 states have (on average 1.5) internal successors, (135), 116 states have internal predecessors, (135), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:51:52,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 159 transitions. [2024-11-28 04:51:52,637 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 159 transitions. Word has length 31 [2024-11-28 04:51:52,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:52,638 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 159 transitions. [2024-11-28 04:51:52,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:51:52,638 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 159 transitions. [2024-11-28 04:51:52,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 04:51:52,639 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:52,639 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:52,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:51:52,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:52,847 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:51:52,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:52,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1005322887, now seen corresponding path program 1 times [2024-11-28 04:51:52,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:52,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872588836] [2024-11-28 04:51:52,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:52,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:52,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:53,002 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:51:53,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:53,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872588836] [2024-11-28 04:51:53,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872588836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:53,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127949291] [2024-11-28 04:51:53,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:53,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:53,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:53,005 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:53,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:51:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:53,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:51:53,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:53,171 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:51:53,172 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:53,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127949291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:53,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:51:53,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-28 04:51:53,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687406469] [2024-11-28 04:51:53,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:53,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:51:53,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:53,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:51:53,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:51:53,175 INFO L87 Difference]: Start difference. First operand 133 states and 159 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:51:53,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:53,292 INFO L93 Difference]: Finished difference Result 138 states and 164 transitions. [2024-11-28 04:51:53,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:51:53,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2024-11-28 04:51:53,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:53,294 INFO L225 Difference]: With dead ends: 138 [2024-11-28 04:51:53,294 INFO L226 Difference]: Without dead ends: 137 [2024-11-28 04:51:53,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:51:53,295 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 16 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:53,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 269 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:51:53,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-28 04:51:53,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 132. [2024-11-28 04:51:53,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 90 states have (on average 1.488888888888889) internal successors, (134), 115 states have internal predecessors, (134), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:51:53,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 158 transitions. [2024-11-28 04:51:53,324 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 158 transitions. Word has length 31 [2024-11-28 04:51:53,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:53,324 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 158 transitions. [2024-11-28 04:51:53,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:51:53,324 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 158 transitions. [2024-11-28 04:51:53,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 04:51:53,325 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:53,325 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:53,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:53,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-28 04:51:53,530 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:51:53,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:53,531 INFO L85 PathProgramCache]: Analyzing trace with hash -2018756862, now seen corresponding path program 1 times [2024-11-28 04:51:53,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:53,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359096421] [2024-11-28 04:51:53,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:53,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:53,629 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:51:53,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:53,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359096421] [2024-11-28 04:51:53,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359096421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:53,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:53,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:51:53,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703905451] [2024-11-28 04:51:53,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:53,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:51:53,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:53,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:51:53,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:51:53,631 INFO L87 Difference]: Start difference. First operand 132 states and 158 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:51:54,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:54,066 INFO L93 Difference]: Finished difference Result 152 states and 184 transitions. [2024-11-28 04:51:54,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:51:54,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2024-11-28 04:51:54,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:54,069 INFO L225 Difference]: With dead ends: 152 [2024-11-28 04:51:54,069 INFO L226 Difference]: Without dead ends: 151 [2024-11-28 04:51:54,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:51:54,070 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 90 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:54,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 159 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:51:54,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-28 04:51:54,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 140. [2024-11-28 04:51:54,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 98 states have (on average 1.489795918367347) internal successors, (146), 123 states have internal predecessors, (146), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:51:54,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 170 transitions. [2024-11-28 04:51:54,107 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 170 transitions. Word has length 32 [2024-11-28 04:51:54,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:54,108 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 170 transitions. [2024-11-28 04:51:54,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 04:51:54,109 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 170 transitions. [2024-11-28 04:51:54,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-28 04:51:54,113 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:54,114 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:54,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:51:54,114 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:51:54,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:54,115 INFO L85 PathProgramCache]: Analyzing trace with hash 767217160, now seen corresponding path program 1 times [2024-11-28 04:51:54,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:54,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918849520] [2024-11-28 04:51:54,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:54,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:54,284 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:51:54,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:54,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918849520] [2024-11-28 04:51:54,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918849520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:54,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28136066] [2024-11-28 04:51:54,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:54,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:54,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:54,291 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:54,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:51:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:54,373 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:51:54,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:54,490 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:51:54,490 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:51:54,620 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 04:51:54,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28136066] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:51:54,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:51:54,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2024-11-28 04:51:54,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189684704] [2024-11-28 04:51:54,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:51:54,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:51:54,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:54,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:51:54,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:51:54,625 INFO L87 Difference]: Start difference. First operand 140 states and 170 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:51:54,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:54,854 INFO L93 Difference]: Finished difference Result 281 states and 342 transitions. [2024-11-28 04:51:54,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:51:54,854 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 34 [2024-11-28 04:51:54,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:54,856 INFO L225 Difference]: With dead ends: 281 [2024-11-28 04:51:54,856 INFO L226 Difference]: Without dead ends: 202 [2024-11-28 04:51:54,856 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:51:54,857 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 65 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:54,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 398 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:51:54,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-11-28 04:51:54,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 180. [2024-11-28 04:51:54,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 130 states have (on average 1.476923076923077) internal successors, (192), 155 states have internal predecessors, (192), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:51:54,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 228 transitions. [2024-11-28 04:51:54,887 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 228 transitions. Word has length 34 [2024-11-28 04:51:54,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:54,888 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 228 transitions. [2024-11-28 04:51:54,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:51:54,889 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 228 transitions. [2024-11-28 04:51:54,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 04:51:54,892 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:54,893 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:54,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 04:51:55,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 04:51:55,094 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:51:55,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:55,095 INFO L85 PathProgramCache]: Analyzing trace with hash -874625494, now seen corresponding path program 1 times [2024-11-28 04:51:55,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:55,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374955255] [2024-11-28 04:51:55,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:55,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:51:55,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1733390409] [2024-11-28 04:51:55,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:55,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:55,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:55,125 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:55,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:51:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:55,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:51:55,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:55,335 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:51:55,335 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:55,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:55,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374955255] [2024-11-28 04:51:55,336 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:51:55,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733390409] [2024-11-28 04:51:55,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733390409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:55,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:55,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:51:55,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064383775] [2024-11-28 04:51:55,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:55,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:51:55,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:55,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:51:55,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:51:55,338 INFO L87 Difference]: Start difference. First operand 180 states and 228 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:51:55,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:55,483 INFO L93 Difference]: Finished difference Result 216 states and 267 transitions. [2024-11-28 04:51:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:51:55,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2024-11-28 04:51:55,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:55,485 INFO L225 Difference]: With dead ends: 216 [2024-11-28 04:51:55,485 INFO L226 Difference]: Without dead ends: 207 [2024-11-28 04:51:55,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:51:55,486 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 79 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:55,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 125 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:51:55,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-28 04:51:55,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 189. [2024-11-28 04:51:55,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 141 states have (on average 1.3971631205673758) internal successors, (197), 162 states have internal predecessors, (197), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 04:51:55,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 237 transitions. [2024-11-28 04:51:55,512 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 237 transitions. Word has length 43 [2024-11-28 04:51:55,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:55,513 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 237 transitions. [2024-11-28 04:51:55,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:51:55,513 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 237 transitions. [2024-11-28 04:51:55,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 04:51:55,514 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:55,514 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:55,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 04:51:55,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:55,719 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:51:55,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:55,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1343586486, now seen corresponding path program 1 times [2024-11-28 04:51:55,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:55,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268974442] [2024-11-28 04:51:55,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:55,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:51:55,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [388367103] [2024-11-28 04:51:55,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:55,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:55,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:55,738 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:55,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:51:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:55,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:51:55,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:55,948 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:51:55,949 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:51:56,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:56,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268974442] [2024-11-28 04:51:56,318 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:51:56,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388367103] [2024-11-28 04:51:56,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388367103] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:56,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:51:56,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-11-28 04:51:56,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128521010] [2024-11-28 04:51:56,318 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:51:56,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:51:56,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:56,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:51:56,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:51:56,320 INFO L87 Difference]: Start difference. First operand 189 states and 237 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:51:56,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:56,537 INFO L93 Difference]: Finished difference Result 286 states and 361 transitions. [2024-11-28 04:51:56,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:51:56,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 44 [2024-11-28 04:51:56,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:56,540 INFO L225 Difference]: With dead ends: 286 [2024-11-28 04:51:56,540 INFO L226 Difference]: Without dead ends: 282 [2024-11-28 04:51:56,541 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:51:56,544 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 66 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:56,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 166 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:51:56,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-28 04:51:56,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 250. [2024-11-28 04:51:56,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 196 states have (on average 1.433673469387755) internal successors, (281), 217 states have internal predecessors, (281), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 04:51:56,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 333 transitions. [2024-11-28 04:51:56,586 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 333 transitions. Word has length 44 [2024-11-28 04:51:56,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:56,586 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 333 transitions. [2024-11-28 04:51:56,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:51:56,587 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 333 transitions. [2024-11-28 04:51:56,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-28 04:51:56,588 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:56,588 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:56,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:56,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:56,789 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:51:56,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:56,790 INFO L85 PathProgramCache]: Analyzing trace with hash 177539779, now seen corresponding path program 1 times [2024-11-28 04:51:56,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:56,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864175435] [2024-11-28 04:51:56,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:56,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:56,989 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:51:56,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:56,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864175435] [2024-11-28 04:51:56,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864175435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:56,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:56,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:51:56,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648060664] [2024-11-28 04:51:56,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:56,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:51:56,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:56,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:51:56,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:51:56,991 INFO L87 Difference]: Start difference. First operand 250 states and 333 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:51:57,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:57,122 INFO L93 Difference]: Finished difference Result 255 states and 337 transitions. [2024-11-28 04:51:57,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:51:57,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2024-11-28 04:51:57,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:57,126 INFO L225 Difference]: With dead ends: 255 [2024-11-28 04:51:57,126 INFO L226 Difference]: Without dead ends: 233 [2024-11-28 04:51:57,126 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:51:57,127 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 25 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:57,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 123 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:51:57,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-28 04:51:57,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2024-11-28 04:51:57,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 182 states have (on average 1.4615384615384615) internal successors, (266), 203 states have internal predecessors, (266), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 04:51:57,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 314 transitions. [2024-11-28 04:51:57,163 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 314 transitions. Word has length 49 [2024-11-28 04:51:57,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:57,164 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 314 transitions. [2024-11-28 04:51:57,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:51:57,164 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 314 transitions. [2024-11-28 04:51:57,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 04:51:57,165 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:57,165 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:57,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:51:57,166 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:51:57,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:57,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1685686716, now seen corresponding path program 1 times [2024-11-28 04:51:57,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:57,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751855713] [2024-11-28 04:51:57,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:57,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:57,269 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:51:57,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:57,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751855713] [2024-11-28 04:51:57,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751855713] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:57,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355435819] [2024-11-28 04:51:57,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:57,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:57,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:57,272 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:57,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:51:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:57,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:51:57,340 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:57,415 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:51:57,416 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:57,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355435819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:57,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:51:57,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-28 04:51:57,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775072851] [2024-11-28 04:51:57,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:57,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:51:57,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:57,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:51:57,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:51:57,417 INFO L87 Difference]: Start difference. First operand 233 states and 314 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:51:57,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:57,558 INFO L93 Difference]: Finished difference Result 336 states and 463 transitions. [2024-11-28 04:51:57,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:51:57,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2024-11-28 04:51:57,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:57,562 INFO L225 Difference]: With dead ends: 336 [2024-11-28 04:51:57,562 INFO L226 Difference]: Without dead ends: 334 [2024-11-28 04:51:57,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:51:57,565 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 59 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:57,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 152 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:51:57,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-28 04:51:57,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 306. [2024-11-28 04:51:57,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 248 states have (on average 1.4838709677419355) internal successors, (368), 268 states have internal predecessors, (368), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-28 04:51:57,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 432 transitions. [2024-11-28 04:51:57,606 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 432 transitions. Word has length 51 [2024-11-28 04:51:57,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:57,606 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 432 transitions. [2024-11-28 04:51:57,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:51:57,607 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 432 transitions. [2024-11-28 04:51:57,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-28 04:51:57,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:57,608 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:57,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:57,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 04:51:57,810 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:51:57,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:57,810 INFO L85 PathProgramCache]: Analyzing trace with hash -716682120, now seen corresponding path program 1 times [2024-11-28 04:51:57,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:57,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607197536] [2024-11-28 04:51:57,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:57,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:57,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:58,022 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:51:58,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:58,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607197536] [2024-11-28 04:51:58,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607197536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:58,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075969157] [2024-11-28 04:51:58,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:58,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:58,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:58,025 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:58,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:51:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:58,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:51:58,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:58,293 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:51:58,293 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:58,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075969157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:58,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:51:58,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-28 04:51:58,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120688648] [2024-11-28 04:51:58,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:58,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:51:58,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:58,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:51:58,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:51:58,295 INFO L87 Difference]: Start difference. First operand 306 states and 432 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:51:58,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:58,396 INFO L93 Difference]: Finished difference Result 306 states and 432 transitions. [2024-11-28 04:51:58,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:51:58,396 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2024-11-28 04:51:58,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:58,398 INFO L225 Difference]: With dead ends: 306 [2024-11-28 04:51:58,399 INFO L226 Difference]: Without dead ends: 305 [2024-11-28 04:51:58,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:51:58,400 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 111 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:58,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 187 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:51:58,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-28 04:51:58,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2024-11-28 04:51:58,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 248 states have (on average 1.435483870967742) internal successors, (356), 267 states have internal predecessors, (356), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-28 04:51:58,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 420 transitions. [2024-11-28 04:51:58,433 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 420 transitions. Word has length 52 [2024-11-28 04:51:58,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:58,434 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 420 transitions. [2024-11-28 04:51:58,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:51:58,434 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 420 transitions. [2024-11-28 04:51:58,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-28 04:51:58,435 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:58,435 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:58,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:58,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 04:51:58,636 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:51:58,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:58,636 INFO L85 PathProgramCache]: Analyzing trace with hash -716680582, now seen corresponding path program 1 times [2024-11-28 04:51:58,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:58,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339436344] [2024-11-28 04:51:58,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:58,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:58,716 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:51:58,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:58,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339436344] [2024-11-28 04:51:58,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339436344] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:58,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755240377] [2024-11-28 04:51:58,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:58,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:58,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:58,719 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:58,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:51:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:58,787 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:51:58,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:58,871 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:51:58,871 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:51:58,977 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:51:58,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755240377] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:51:58,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:51:58,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-28 04:51:58,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118096833] [2024-11-28 04:51:58,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:51:58,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:51:58,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:58,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:51:58,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:51:58,982 INFO L87 Difference]: Start difference. First operand 305 states and 420 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-28 04:51:59,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:59,287 INFO L93 Difference]: Finished difference Result 472 states and 642 transitions. [2024-11-28 04:51:59,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:51:59,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 52 [2024-11-28 04:51:59,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:59,295 INFO L225 Difference]: With dead ends: 472 [2024-11-28 04:51:59,295 INFO L226 Difference]: Without dead ends: 470 [2024-11-28 04:51:59,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:51:59,297 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 193 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:59,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 266 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:51:59,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-11-28 04:51:59,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 411. [2024-11-28 04:51:59,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 341 states have (on average 1.4486803519061584) internal successors, (494), 360 states have internal predecessors, (494), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-28 04:51:59,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 584 transitions. [2024-11-28 04:51:59,361 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 584 transitions. Word has length 52 [2024-11-28 04:51:59,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:59,362 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 584 transitions. [2024-11-28 04:51:59,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-28 04:51:59,362 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 584 transitions. [2024-11-28 04:51:59,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-28 04:51:59,364 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:59,364 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:59,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:59,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 04:51:59,565 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:51:59,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:59,568 INFO L85 PathProgramCache]: Analyzing trace with hash -742309164, now seen corresponding path program 1 times [2024-11-28 04:51:59,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:59,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544996705] [2024-11-28 04:51:59,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:59,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:59,744 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:51:59,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:59,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544996705] [2024-11-28 04:51:59,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544996705] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:59,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224941063] [2024-11-28 04:51:59,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:59,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:59,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:59,748 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:59,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:51:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:59,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:51:59,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:00,007 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 3 proven. 43 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:52:00,007 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:00,197 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:52:00,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224941063] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:52:00,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:52:00,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-11-28 04:52:00,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945497174] [2024-11-28 04:52:00,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:00,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:52:00,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:00,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:52:00,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:52:00,200 INFO L87 Difference]: Start difference. First operand 411 states and 584 transitions. Second operand has 19 states, 18 states have (on average 4.111111111111111) internal successors, (74), 19 states have internal predecessors, (74), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-28 04:52:00,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:00,654 INFO L93 Difference]: Finished difference Result 475 states and 638 transitions. [2024-11-28 04:52:00,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:52:00,655 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.111111111111111) internal successors, (74), 19 states have internal predecessors, (74), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 53 [2024-11-28 04:52:00,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:00,658 INFO L225 Difference]: With dead ends: 475 [2024-11-28 04:52:00,658 INFO L226 Difference]: Without dead ends: 469 [2024-11-28 04:52:00,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=241, Invalid=689, Unknown=0, NotChecked=0, Total=930 [2024-11-28 04:52:00,660 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 341 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:00,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 608 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:52:00,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-28 04:52:00,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 440. [2024-11-28 04:52:00,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 368 states have (on average 1.4048913043478262) internal successors, (517), 387 states have internal predecessors, (517), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-28 04:52:00,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 607 transitions. [2024-11-28 04:52:00,704 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 607 transitions. Word has length 53 [2024-11-28 04:52:00,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:00,705 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 607 transitions. [2024-11-28 04:52:00,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.111111111111111) internal successors, (74), 19 states have internal predecessors, (74), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-28 04:52:00,705 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 607 transitions. [2024-11-28 04:52:00,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 04:52:00,706 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:00,706 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-28 04:52:00,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 04:52:00,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 04:52:00,909 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:00,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:00,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1217958983, now seen corresponding path program 2 times [2024-11-28 04:52:00,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:00,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713601346] [2024-11-28 04:52:00,910 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:52:00,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:00,948 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:52:00,948 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:52:00,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1163311870] [2024-11-28 04:52:00,950 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:52:00,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:00,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:00,953 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:00,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:52:01,024 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:52:01,025 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:52:01,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:52:01,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:01,240 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 04:52:01,240 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:01,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:01,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713601346] [2024-11-28 04:52:01,498 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:52:01,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163311870] [2024-11-28 04:52:01,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163311870] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:01,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:52:01,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-28 04:52:01,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099651640] [2024-11-28 04:52:01,499 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:01,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:52:01,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:01,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:52:01,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:52:01,501 INFO L87 Difference]: Start difference. First operand 440 states and 607 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:52:01,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:01,766 INFO L93 Difference]: Finished difference Result 581 states and 792 transitions. [2024-11-28 04:52:01,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:52:01,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 70 [2024-11-28 04:52:01,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:01,771 INFO L225 Difference]: With dead ends: 581 [2024-11-28 04:52:01,771 INFO L226 Difference]: Without dead ends: 577 [2024-11-28 04:52:01,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:52:01,773 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 106 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:01,773 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 183 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:52:01,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-28 04:52:01,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 490. [2024-11-28 04:52:01,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 412 states have (on average 1.3907766990291262) internal successors, (573), 431 states have internal predecessors, (573), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-28 04:52:01,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 675 transitions. [2024-11-28 04:52:01,833 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 675 transitions. Word has length 70 [2024-11-28 04:52:01,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:01,833 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 675 transitions. [2024-11-28 04:52:01,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:52:01,834 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 675 transitions. [2024-11-28 04:52:01,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 04:52:01,839 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:01,839 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:01,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 04:52:02,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:02,040 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:02,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:02,040 INFO L85 PathProgramCache]: Analyzing trace with hash 533823658, now seen corresponding path program 1 times [2024-11-28 04:52:02,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:02,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757449] [2024-11-28 04:52:02,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:02,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:02,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:02,133 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-28 04:52:02,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:02,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757449] [2024-11-28 04:52:02,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:52:02,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:52:02,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:52:02,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13249849] [2024-11-28 04:52:02,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:52:02,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:52:02,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:02,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:52:02,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:52:02,135 INFO L87 Difference]: Start difference. First operand 490 states and 675 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:52:02,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:02,221 INFO L93 Difference]: Finished difference Result 490 states and 675 transitions. [2024-11-28 04:52:02,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:52:02,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 77 [2024-11-28 04:52:02,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:02,225 INFO L225 Difference]: With dead ends: 490 [2024-11-28 04:52:02,225 INFO L226 Difference]: Without dead ends: 489 [2024-11-28 04:52:02,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:52:02,226 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 2 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:02,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 114 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:52:02,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-11-28 04:52:02,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2024-11-28 04:52:02,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 412 states have (on average 1.3713592233009708) internal successors, (565), 430 states have internal predecessors, (565), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-28 04:52:02,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 667 transitions. [2024-11-28 04:52:02,288 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 667 transitions. Word has length 77 [2024-11-28 04:52:02,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:02,289 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 667 transitions. [2024-11-28 04:52:02,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:52:02,289 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 667 transitions. [2024-11-28 04:52:02,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-28 04:52:02,290 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:02,290 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:02,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 04:52:02,291 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:02,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:02,291 INFO L85 PathProgramCache]: Analyzing trace with hash -631335670, now seen corresponding path program 1 times [2024-11-28 04:52:02,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:02,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307928409] [2024-11-28 04:52:02,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:02,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:02,570 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 04:52:02,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:02,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307928409] [2024-11-28 04:52:02,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307928409] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:02,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126496445] [2024-11-28 04:52:02,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:02,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:02,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:02,574 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:02,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:52:02,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:02,649 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:52:02,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:02,922 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 04:52:02,922 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:52:02,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126496445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:52:02,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:52:02,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 04:52:02,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741916042] [2024-11-28 04:52:02,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:52:02,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:52:02,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:02,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:52:02,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:52:02,925 INFO L87 Difference]: Start difference. First operand 489 states and 667 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:52:03,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:03,094 INFO L93 Difference]: Finished difference Result 514 states and 689 transitions. [2024-11-28 04:52:03,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:52:03,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2024-11-28 04:52:03,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:03,098 INFO L225 Difference]: With dead ends: 514 [2024-11-28 04:52:03,099 INFO L226 Difference]: Without dead ends: 513 [2024-11-28 04:52:03,099 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:52:03,102 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 40 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:03,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 126 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:52:03,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-28 04:52:03,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 489. [2024-11-28 04:52:03,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 412 states have (on average 1.3616504854368932) internal successors, (561), 430 states have internal predecessors, (561), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-28 04:52:03,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 663 transitions. [2024-11-28 04:52:03,160 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 663 transitions. Word has length 78 [2024-11-28 04:52:03,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:03,161 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 663 transitions. [2024-11-28 04:52:03,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:52:03,161 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 663 transitions. [2024-11-28 04:52:03,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 04:52:03,162 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:03,162 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:03,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 04:52:03,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-28 04:52:03,363 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:03,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:03,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1903430828, now seen corresponding path program 1 times [2024-11-28 04:52:03,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:03,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918180513] [2024-11-28 04:52:03,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:03,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:03,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:03,590 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 04:52:03,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:03,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918180513] [2024-11-28 04:52:03,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918180513] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:03,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007234389] [2024-11-28 04:52:03,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:03,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:03,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:03,594 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:03,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:52:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:03,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:52:03,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:03,956 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-28 04:52:03,956 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:52:03,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007234389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:52:03,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:52:03,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-28 04:52:03,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069180140] [2024-11-28 04:52:03,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:52:03,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:52:03,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:03,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:52:03,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:52:03,958 INFO L87 Difference]: Start difference. First operand 489 states and 663 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:52:04,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:04,217 INFO L93 Difference]: Finished difference Result 522 states and 700 transitions. [2024-11-28 04:52:04,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:52:04,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 79 [2024-11-28 04:52:04,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:04,224 INFO L225 Difference]: With dead ends: 522 [2024-11-28 04:52:04,225 INFO L226 Difference]: Without dead ends: 521 [2024-11-28 04:52:04,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:52:04,227 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 88 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:04,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 113 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:52:04,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-28 04:52:04,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 501. [2024-11-28 04:52:04,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 424 states have (on average 1.3514150943396226) internal successors, (573), 442 states have internal predecessors, (573), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-28 04:52:04,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 675 transitions. [2024-11-28 04:52:04,319 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 675 transitions. Word has length 79 [2024-11-28 04:52:04,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:04,320 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 675 transitions. [2024-11-28 04:52:04,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:52:04,320 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 675 transitions. [2024-11-28 04:52:04,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 04:52:04,321 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:04,321 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:04,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 04:52:04,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 04:52:04,522 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:04,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:04,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1123186356, now seen corresponding path program 1 times [2024-11-28 04:52:04,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:04,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51841386] [2024-11-28 04:52:04,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:04,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:04,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:04,721 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 04:52:04,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:04,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51841386] [2024-11-28 04:52:04,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51841386] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:04,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213004358] [2024-11-28 04:52:04,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:04,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:04,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:04,724 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:04,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:52:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:04,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:52:04,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:04,999 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-28 04:52:05,000 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:52:05,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213004358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:52:05,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:52:05,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-28 04:52:05,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444755308] [2024-11-28 04:52:05,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:52:05,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:52:05,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:05,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:52:05,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:52:05,002 INFO L87 Difference]: Start difference. First operand 501 states and 675 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:52:05,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:05,200 INFO L93 Difference]: Finished difference Result 517 states and 688 transitions. [2024-11-28 04:52:05,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:52:05,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 80 [2024-11-28 04:52:05,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:05,204 INFO L225 Difference]: With dead ends: 517 [2024-11-28 04:52:05,204 INFO L226 Difference]: Without dead ends: 515 [2024-11-28 04:52:05,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:52:05,205 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 43 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:05,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 110 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:52:05,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2024-11-28 04:52:05,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 505. [2024-11-28 04:52:05,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 428 states have (on average 1.3294392523364487) internal successors, (569), 446 states have internal predecessors, (569), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-28 04:52:05,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 671 transitions. [2024-11-28 04:52:05,296 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 671 transitions. Word has length 80 [2024-11-28 04:52:05,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:05,297 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 671 transitions. [2024-11-28 04:52:05,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:52:05,297 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 671 transitions. [2024-11-28 04:52:05,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-28 04:52:05,298 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:05,299 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:05,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-28 04:52:05,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:05,500 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:05,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:05,501 INFO L85 PathProgramCache]: Analyzing trace with hash 763367358, now seen corresponding path program 1 times [2024-11-28 04:52:05,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:05,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597090162] [2024-11-28 04:52:05,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:05,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:05,710 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:52:05,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:05,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597090162] [2024-11-28 04:52:05,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597090162] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:05,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467626350] [2024-11-28 04:52:05,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:05,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:05,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:05,715 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:05,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:52:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:05,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:52:05,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:05,937 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:52:05,937 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:06,163 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:52:06,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467626350] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:52:06,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:52:06,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 21 [2024-11-28 04:52:06,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935645485] [2024-11-28 04:52:06,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:06,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 04:52:06,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:06,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 04:52:06,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:52:06,166 INFO L87 Difference]: Start difference. First operand 505 states and 671 transitions. Second operand has 21 states, 21 states have (on average 4.380952380952381) internal successors, (92), 21 states have internal predecessors, (92), 6 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) [2024-11-28 04:52:06,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:06,786 INFO L93 Difference]: Finished difference Result 702 states and 911 transitions. [2024-11-28 04:52:06,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 04:52:06,787 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.380952380952381) internal successors, (92), 21 states have internal predecessors, (92), 6 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) Word has length 84 [2024-11-28 04:52:06,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:06,790 INFO L225 Difference]: With dead ends: 702 [2024-11-28 04:52:06,790 INFO L226 Difference]: Without dead ends: 569 [2024-11-28 04:52:06,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=355, Invalid=1127, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 04:52:06,792 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 124 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:06,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 605 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:52:06,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-11-28 04:52:06,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 551. [2024-11-28 04:52:06,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 464 states have (on average 1.3060344827586208) internal successors, (606), 482 states have internal predecessors, (606), 57 states have call successors, (57), 11 states have call predecessors, (57), 11 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-28 04:52:06,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 720 transitions. [2024-11-28 04:52:06,855 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 720 transitions. Word has length 84 [2024-11-28 04:52:06,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:06,856 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 720 transitions. [2024-11-28 04:52:06,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.380952380952381) internal successors, (92), 21 states have internal predecessors, (92), 6 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) [2024-11-28 04:52:06,856 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 720 transitions. [2024-11-28 04:52:06,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-28 04:52:06,857 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:06,857 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:06,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 04:52:07,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-28 04:52:07,062 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:07,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:07,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1328952029, now seen corresponding path program 1 times [2024-11-28 04:52:07,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:07,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492453836] [2024-11-28 04:52:07,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:07,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:52:07,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1345805325] [2024-11-28 04:52:07,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:07,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:07,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:07,096 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:07,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:52:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:07,174 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:52:07,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:07,586 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-28 04:52:07,586 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:08,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:08,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492453836] [2024-11-28 04:52:08,571 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:52:08,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345805325] [2024-11-28 04:52:08,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345805325] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:08,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:52:08,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 04:52:08,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212435297] [2024-11-28 04:52:08,572 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:08,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:52:08,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:08,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:52:08,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:52:08,573 INFO L87 Difference]: Start difference. First operand 551 states and 720 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:52:08,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:08,833 INFO L93 Difference]: Finished difference Result 677 states and 903 transitions. [2024-11-28 04:52:08,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:52:08,834 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 85 [2024-11-28 04:52:08,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:08,839 INFO L225 Difference]: With dead ends: 677 [2024-11-28 04:52:08,839 INFO L226 Difference]: Without dead ends: 676 [2024-11-28 04:52:08,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:52:08,840 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 141 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:08,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 103 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:52:08,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2024-11-28 04:52:08,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 632. [2024-11-28 04:52:08,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 539 states have (on average 1.3320964749536177) internal successors, (718), 557 states have internal predecessors, (718), 63 states have call successors, (63), 11 states have call predecessors, (63), 11 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-28 04:52:08,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 844 transitions. [2024-11-28 04:52:08,934 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 844 transitions. Word has length 85 [2024-11-28 04:52:08,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:08,935 INFO L471 AbstractCegarLoop]: Abstraction has 632 states and 844 transitions. [2024-11-28 04:52:08,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:52:08,936 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 844 transitions. [2024-11-28 04:52:08,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 04:52:08,937 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:08,938 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:08,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-28 04:52:09,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-28 04:52:09,140 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:09,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:09,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1752160147, now seen corresponding path program 1 times [2024-11-28 04:52:09,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:09,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379958107] [2024-11-28 04:52:09,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:09,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:52:09,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1002398824] [2024-11-28 04:52:09,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:09,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:09,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:09,175 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:09,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 04:52:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:09,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:52:09,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:09,708 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-28 04:52:09,709 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:10,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:10,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379958107] [2024-11-28 04:52:10,637 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:52:10,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002398824] [2024-11-28 04:52:10,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002398824] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:10,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:52:10,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-28 04:52:10,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932623992] [2024-11-28 04:52:10,638 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:10,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:52:10,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:10,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:52:10,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:52:10,640 INFO L87 Difference]: Start difference. First operand 632 states and 844 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:52:10,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:10,868 INFO L93 Difference]: Finished difference Result 642 states and 849 transitions. [2024-11-28 04:52:10,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:52:10,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 86 [2024-11-28 04:52:10,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:10,873 INFO L225 Difference]: With dead ends: 642 [2024-11-28 04:52:10,873 INFO L226 Difference]: Without dead ends: 639 [2024-11-28 04:52:10,874 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:52:10,875 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 66 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:10,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 103 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:52:10,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-11-28 04:52:10,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 630. [2024-11-28 04:52:10,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 539 states have (on average 1.2838589981447124) internal successors, (692), 555 states have internal predecessors, (692), 63 states have call successors, (63), 11 states have call predecessors, (63), 11 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-28 04:52:10,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 818 transitions. [2024-11-28 04:52:10,948 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 818 transitions. Word has length 86 [2024-11-28 04:52:10,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:10,949 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 818 transitions. [2024-11-28 04:52:10,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:52:10,949 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 818 transitions. [2024-11-28 04:52:10,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 04:52:10,950 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:10,952 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:10,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-28 04:52:11,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:11,153 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:11,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:11,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1517610203, now seen corresponding path program 1 times [2024-11-28 04:52:11,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:11,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871470466] [2024-11-28 04:52:11,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:11,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:11,259 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-28 04:52:11,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:11,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871470466] [2024-11-28 04:52:11,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871470466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:52:11,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:52:11,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:52:11,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001877974] [2024-11-28 04:52:11,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:52:11,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:52:11,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:11,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:52:11,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:52:11,262 INFO L87 Difference]: Start difference. First operand 630 states and 818 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:52:11,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:11,639 INFO L93 Difference]: Finished difference Result 639 states and 826 transitions. [2024-11-28 04:52:11,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:52:11,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 87 [2024-11-28 04:52:11,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:11,644 INFO L225 Difference]: With dead ends: 639 [2024-11-28 04:52:11,644 INFO L226 Difference]: Without dead ends: 638 [2024-11-28 04:52:11,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:52:11,646 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 71 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:11,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 174 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:52:11,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-28 04:52:11,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 629. [2024-11-28 04:52:11,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 539 states have (on average 1.25417439703154) internal successors, (676), 554 states have internal predecessors, (676), 63 states have call successors, (63), 11 states have call predecessors, (63), 11 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-28 04:52:11,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 802 transitions. [2024-11-28 04:52:11,725 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 802 transitions. Word has length 87 [2024-11-28 04:52:11,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:11,725 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 802 transitions. [2024-11-28 04:52:11,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:52:11,726 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 802 transitions. [2024-11-28 04:52:11,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:52:11,727 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:11,727 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:11,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 04:52:11,727 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:11,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:11,728 INFO L85 PathProgramCache]: Analyzing trace with hash 198724053, now seen corresponding path program 1 times [2024-11-28 04:52:11,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:11,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661781452] [2024-11-28 04:52:11,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:11,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:11,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:12,002 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 04:52:12,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:12,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661781452] [2024-11-28 04:52:12,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661781452] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:12,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427906993] [2024-11-28 04:52:12,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:12,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:12,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:12,007 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:12,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:52:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:12,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:52:12,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:12,792 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 04:52:12,793 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:13,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427906993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:13,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:52:13,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-28 04:52:13,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408545952] [2024-11-28 04:52:13,912 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:13,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:52:13,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:13,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:52:13,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:52:13,915 INFO L87 Difference]: Start difference. First operand 629 states and 802 transitions. Second operand has 16 states, 15 states have (on average 6.533333333333333) internal successors, (98), 16 states have internal predecessors, (98), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-28 04:52:15,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:15,951 INFO L93 Difference]: Finished difference Result 956 states and 1254 transitions. [2024-11-28 04:52:15,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 04:52:15,952 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.533333333333333) internal successors, (98), 16 states have internal predecessors, (98), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 88 [2024-11-28 04:52:15,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:15,957 INFO L225 Difference]: With dead ends: 956 [2024-11-28 04:52:15,957 INFO L226 Difference]: Without dead ends: 947 [2024-11-28 04:52:15,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=353, Invalid=1287, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 04:52:15,959 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 541 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:15,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 421 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:52:15,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2024-11-28 04:52:16,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 742. [2024-11-28 04:52:16,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 642 states have (on average 1.264797507788162) internal successors, (812), 657 states have internal predecessors, (812), 73 states have call successors, (73), 11 states have call predecessors, (73), 11 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-28 04:52:16,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 958 transitions. [2024-11-28 04:52:16,059 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 958 transitions. Word has length 88 [2024-11-28 04:52:16,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:16,060 INFO L471 AbstractCegarLoop]: Abstraction has 742 states and 958 transitions. [2024-11-28 04:52:16,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.533333333333333) internal successors, (98), 16 states have internal predecessors, (98), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-28 04:52:16,060 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 958 transitions. [2024-11-28 04:52:16,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-28 04:52:16,062 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:16,062 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:16,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-28 04:52:16,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:16,266 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:16,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:16,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1396550732, now seen corresponding path program 1 times [2024-11-28 04:52:16,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:16,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376604146] [2024-11-28 04:52:16,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:16,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:52:16,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [340298047] [2024-11-28 04:52:16,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:16,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:16,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:16,316 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:16,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:52:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:16,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 04:52:16,414 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:17,046 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 3 proven. 47 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-28 04:52:17,046 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:17,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:17,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376604146] [2024-11-28 04:52:17,805 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:52:17,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340298047] [2024-11-28 04:52:17,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340298047] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:17,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:52:17,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:52:17,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621565173] [2024-11-28 04:52:17,806 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:17,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:52:17,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:17,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:52:17,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:52:17,809 INFO L87 Difference]: Start difference. First operand 742 states and 958 transitions. Second operand has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:52:18,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:18,401 INFO L93 Difference]: Finished difference Result 766 states and 973 transitions. [2024-11-28 04:52:18,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:52:18,401 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 102 [2024-11-28 04:52:18,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:18,408 INFO L225 Difference]: With dead ends: 766 [2024-11-28 04:52:18,409 INFO L226 Difference]: Without dead ends: 591 [2024-11-28 04:52:18,410 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:52:18,410 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 20 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:18,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 313 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:52:18,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2024-11-28 04:52:18,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 589. [2024-11-28 04:52:18,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 501 states have (on average 1.253493013972056) internal successors, (628), 516 states have internal predecessors, (628), 61 states have call successors, (61), 11 states have call predecessors, (61), 11 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-28 04:52:18,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 750 transitions. [2024-11-28 04:52:18,490 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 750 transitions. Word has length 102 [2024-11-28 04:52:18,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:18,491 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 750 transitions. [2024-11-28 04:52:18,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:52:18,491 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 750 transitions. [2024-11-28 04:52:18,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-28 04:52:18,493 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:18,494 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:18,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-28 04:52:18,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:18,698 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:18,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:18,699 INFO L85 PathProgramCache]: Analyzing trace with hash -2055452938, now seen corresponding path program 1 times [2024-11-28 04:52:18,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:18,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586354373] [2024-11-28 04:52:18,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:18,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:18,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:18,823 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-28 04:52:18,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:18,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586354373] [2024-11-28 04:52:18,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586354373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:52:18,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:52:18,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:52:18,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073606803] [2024-11-28 04:52:18,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:52:18,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:52:18,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:18,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:52:18,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:52:18,826 INFO L87 Difference]: Start difference. First operand 589 states and 750 transitions. Second operand has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:52:19,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:19,101 INFO L93 Difference]: Finished difference Result 593 states and 751 transitions. [2024-11-28 04:52:19,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:52:19,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 104 [2024-11-28 04:52:19,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:19,105 INFO L225 Difference]: With dead ends: 593 [2024-11-28 04:52:19,105 INFO L226 Difference]: Without dead ends: 550 [2024-11-28 04:52:19,108 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:52:19,109 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 32 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:19,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 229 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:52:19,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-28 04:52:19,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 545. [2024-11-28 04:52:19,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 463 states have (on average 1.2699784017278617) internal successors, (588), 477 states have internal predecessors, (588), 57 states have call successors, (57), 10 states have call predecessors, (57), 10 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-28 04:52:19,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 702 transitions. [2024-11-28 04:52:19,185 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 702 transitions. Word has length 104 [2024-11-28 04:52:19,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:19,185 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 702 transitions. [2024-11-28 04:52:19,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:52:19,185 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 702 transitions. [2024-11-28 04:52:19,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-28 04:52:19,187 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:19,187 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1] [2024-11-28 04:52:19,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 04:52:19,187 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:19,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:19,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1565033674, now seen corresponding path program 1 times [2024-11-28 04:52:19,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:19,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341869961] [2024-11-28 04:52:19,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:19,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:19,305 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:52:19,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:19,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341869961] [2024-11-28 04:52:19,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341869961] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:19,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381922547] [2024-11-28 04:52:19,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:19,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:19,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:19,308 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:19,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 04:52:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:19,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:52:19,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:19,500 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:52:19,500 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:19,688 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:52:19,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381922547] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:52:19,688 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:52:19,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 04:52:19,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135888522] [2024-11-28 04:52:19,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:19,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:52:19,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:19,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:52:19,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:52:19,691 INFO L87 Difference]: Start difference. First operand 545 states and 702 transitions. Second operand has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-28 04:52:20,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:20,137 INFO L93 Difference]: Finished difference Result 1065 states and 1359 transitions. [2024-11-28 04:52:20,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:52:20,138 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 106 [2024-11-28 04:52:20,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:20,144 INFO L225 Difference]: With dead ends: 1065 [2024-11-28 04:52:20,144 INFO L226 Difference]: Without dead ends: 1063 [2024-11-28 04:52:20,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:52:20,145 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 445 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:20,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 432 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:52:20,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2024-11-28 04:52:20,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 705. [2024-11-28 04:52:20,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 605 states have (on average 1.2793388429752066) internal successors, (774), 619 states have internal predecessors, (774), 75 states have call successors, (75), 10 states have call predecessors, (75), 10 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-28 04:52:20,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 924 transitions. [2024-11-28 04:52:20,242 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 924 transitions. Word has length 106 [2024-11-28 04:52:20,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:20,243 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 924 transitions. [2024-11-28 04:52:20,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-28 04:52:20,243 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 924 transitions. [2024-11-28 04:52:20,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-28 04:52:20,248 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:20,248 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:20,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-28 04:52:20,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:20,450 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:20,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:20,450 INFO L85 PathProgramCache]: Analyzing trace with hash 932747090, now seen corresponding path program 2 times [2024-11-28 04:52:20,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:20,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223459547] [2024-11-28 04:52:20,451 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:52:20,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:20,483 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:52:20,483 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:52:20,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716943423] [2024-11-28 04:52:20,485 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:52:20,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:20,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:20,487 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:20,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 04:52:20,582 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:52:20,582 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:52:20,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:52:20,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:21,518 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-28 04:52:21,518 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:26,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:26,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223459547] [2024-11-28 04:52:26,772 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:52:26,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716943423] [2024-11-28 04:52:26,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716943423] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:26,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:52:26,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:52:26,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60368448] [2024-11-28 04:52:26,773 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:26,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:52:26,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:26,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:52:26,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=219, Unknown=1, NotChecked=0, Total=272 [2024-11-28 04:52:26,775 INFO L87 Difference]: Start difference. First operand 705 states and 924 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 04:52:27,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:27,999 INFO L93 Difference]: Finished difference Result 733 states and 959 transitions. [2024-11-28 04:52:28,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:52:28,000 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 114 [2024-11-28 04:52:28,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:28,004 INFO L225 Difference]: With dead ends: 733 [2024-11-28 04:52:28,004 INFO L226 Difference]: Without dead ends: 732 [2024-11-28 04:52:28,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=62, Invalid=243, Unknown=1, NotChecked=0, Total=306 [2024-11-28 04:52:28,006 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 34 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:28,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 545 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1003 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:52:28,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2024-11-28 04:52:28,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 705. [2024-11-28 04:52:28,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 605 states have (on average 1.2776859504132232) internal successors, (773), 619 states have internal predecessors, (773), 75 states have call successors, (75), 10 states have call predecessors, (75), 10 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-28 04:52:28,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 923 transitions. [2024-11-28 04:52:28,091 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 923 transitions. Word has length 114 [2024-11-28 04:52:28,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:28,092 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 923 transitions. [2024-11-28 04:52:28,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 04:52:28,092 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 923 transitions. [2024-11-28 04:52:28,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-28 04:52:28,094 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:28,094 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:28,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-28 04:52:28,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:28,299 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:28,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:28,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1074344237, now seen corresponding path program 1 times [2024-11-28 04:52:28,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:28,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523523177] [2024-11-28 04:52:28,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:28,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:28,488 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 10 proven. 37 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:52:28,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:28,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523523177] [2024-11-28 04:52:28,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523523177] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:28,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584453295] [2024-11-28 04:52:28,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:28,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:28,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:28,494 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:28,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 04:52:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:28,578 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:52:28,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:28,950 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2024-11-28 04:52:28,950 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:52:28,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584453295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:52:28,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:52:28,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-28 04:52:28,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449029330] [2024-11-28 04:52:28,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:52:28,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:52:28,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:28,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:52:28,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:52:28,953 INFO L87 Difference]: Start difference. First operand 705 states and 923 transitions. Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:52:29,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:29,110 INFO L93 Difference]: Finished difference Result 711 states and 925 transitions. [2024-11-28 04:52:29,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:52:29,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 127 [2024-11-28 04:52:29,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:29,115 INFO L225 Difference]: With dead ends: 711 [2024-11-28 04:52:29,115 INFO L226 Difference]: Without dead ends: 706 [2024-11-28 04:52:29,116 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:52:29,116 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 10 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:29,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 83 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:52:29,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-11-28 04:52:29,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 699. [2024-11-28 04:52:29,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 599 states have (on average 1.2520868113522539) internal successors, (750), 613 states have internal predecessors, (750), 75 states have call successors, (75), 10 states have call predecessors, (75), 10 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-28 04:52:29,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 900 transitions. [2024-11-28 04:52:29,204 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 900 transitions. Word has length 127 [2024-11-28 04:52:29,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:29,204 INFO L471 AbstractCegarLoop]: Abstraction has 699 states and 900 transitions. [2024-11-28 04:52:29,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:52:29,205 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 900 transitions. [2024-11-28 04:52:29,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 04:52:29,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:29,207 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:29,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-28 04:52:29,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:29,408 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:29,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:29,409 INFO L85 PathProgramCache]: Analyzing trace with hash 664453745, now seen corresponding path program 2 times [2024-11-28 04:52:29,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:29,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144734095] [2024-11-28 04:52:29,409 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:52:29,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:29,432 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:52:29,432 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:52:29,722 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:52:29,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:29,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144734095] [2024-11-28 04:52:29,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144734095] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:29,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253768079] [2024-11-28 04:52:29,723 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:52:29,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:29,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:29,726 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:29,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 04:52:29,825 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:52:29,825 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:52:29,829 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:52:29,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:30,006 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:52:30,006 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:30,285 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:52:30,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253768079] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:52:30,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:52:30,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2024-11-28 04:52:30,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843910827] [2024-11-28 04:52:30,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:30,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:52:30,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:30,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:52:30,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:52:30,289 INFO L87 Difference]: Start difference. First operand 699 states and 900 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2024-11-28 04:52:30,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:30,516 INFO L93 Difference]: Finished difference Result 722 states and 918 transitions. [2024-11-28 04:52:30,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:52:30,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 128 [2024-11-28 04:52:30,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:30,520 INFO L225 Difference]: With dead ends: 722 [2024-11-28 04:52:30,521 INFO L226 Difference]: Without dead ends: 715 [2024-11-28 04:52:30,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 251 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:52:30,523 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 70 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:30,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 260 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:52:30,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-11-28 04:52:30,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 699. [2024-11-28 04:52:30,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 599 states have (on average 1.2454090150250416) internal successors, (746), 613 states have internal predecessors, (746), 75 states have call successors, (75), 10 states have call predecessors, (75), 10 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-28 04:52:30,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 896 transitions. [2024-11-28 04:52:30,604 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 896 transitions. Word has length 128 [2024-11-28 04:52:30,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:30,605 INFO L471 AbstractCegarLoop]: Abstraction has 699 states and 896 transitions. [2024-11-28 04:52:30,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2024-11-28 04:52:30,605 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 896 transitions. [2024-11-28 04:52:30,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 04:52:30,609 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:30,609 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1] [2024-11-28 04:52:30,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-28 04:52:30,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:30,814 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:30,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:30,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1729782705, now seen corresponding path program 2 times [2024-11-28 04:52:30,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:30,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649006425] [2024-11-28 04:52:30,815 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:52:30,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:30,834 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:52:30,834 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:52:30,992 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-28 04:52:30,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:30,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649006425] [2024-11-28 04:52:30,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649006425] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:30,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132072772] [2024-11-28 04:52:30,993 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:52:30,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:30,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:30,996 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:31,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 04:52:31,081 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:52:31,081 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:52:31,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:52:31,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:31,229 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-28 04:52:31,229 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:31,520 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-28 04:52:31,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132072772] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:52:31,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:52:31,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-28 04:52:31,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925686665] [2024-11-28 04:52:31,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:31,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:52:31,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:31,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:52:31,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:52:31,523 INFO L87 Difference]: Start difference. First operand 699 states and 896 transitions. Second operand has 13 states, 12 states have (on average 10.166666666666666) internal successors, (122), 13 states have internal predecessors, (122), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2024-11-28 04:52:32,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:32,212 INFO L93 Difference]: Finished difference Result 1541 states and 2016 transitions. [2024-11-28 04:52:32,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:52:32,213 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.166666666666666) internal successors, (122), 13 states have internal predecessors, (122), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) Word has length 130 [2024-11-28 04:52:32,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:32,220 INFO L225 Difference]: With dead ends: 1541 [2024-11-28 04:52:32,220 INFO L226 Difference]: Without dead ends: 1539 [2024-11-28 04:52:32,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:52:32,222 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 474 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:32,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 506 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:52:32,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1539 states. [2024-11-28 04:52:32,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1539 to 725. [2024-11-28 04:52:32,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 619 states have (on average 1.235864297253635) internal successors, (765), 633 states have internal predecessors, (765), 81 states have call successors, (81), 10 states have call predecessors, (81), 10 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-28 04:52:32,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 927 transitions. [2024-11-28 04:52:32,323 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 927 transitions. Word has length 130 [2024-11-28 04:52:32,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:32,324 INFO L471 AbstractCegarLoop]: Abstraction has 725 states and 927 transitions. [2024-11-28 04:52:32,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.166666666666666) internal successors, (122), 13 states have internal predecessors, (122), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2024-11-28 04:52:32,324 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 927 transitions. [2024-11-28 04:52:32,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 04:52:32,326 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:32,326 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:32,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-28 04:52:32,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:32,531 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:32,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:32,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1726289507, now seen corresponding path program 1 times [2024-11-28 04:52:32,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:32,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921327608] [2024-11-28 04:52:32,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:32,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:32,904 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:52:32,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:32,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921327608] [2024-11-28 04:52:32,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921327608] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:32,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889376617] [2024-11-28 04:52:32,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:32,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:32,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:32,907 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:32,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 04:52:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:33,002 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:52:33,006 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:33,574 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 28 proven. 24 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:52:33,574 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:34,315 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 34 proven. 18 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:52:34,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889376617] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:52:34,316 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:52:34,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 19 [2024-11-28 04:52:34,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280260147] [2024-11-28 04:52:34,317 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:34,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 04:52:34,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:34,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 04:52:34,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:52:34,319 INFO L87 Difference]: Start difference. First operand 725 states and 927 transitions. Second operand has 20 states, 19 states have (on average 10.31578947368421) internal successors, (196), 20 states have internal predecessors, (196), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-28 04:52:35,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:35,490 INFO L93 Difference]: Finished difference Result 1024 states and 1312 transitions. [2024-11-28 04:52:35,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 04:52:35,491 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 10.31578947368421) internal successors, (196), 20 states have internal predecessors, (196), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 130 [2024-11-28 04:52:35,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:35,497 INFO L225 Difference]: With dead ends: 1024 [2024-11-28 04:52:35,497 INFO L226 Difference]: Without dead ends: 914 [2024-11-28 04:52:35,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=346, Invalid=914, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 04:52:35,500 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 492 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:35,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 718 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:52:35,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2024-11-28 04:52:35,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 711. [2024-11-28 04:52:35,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 601 states have (on average 1.259567387687188) internal successors, (757), 615 states have internal predecessors, (757), 85 states have call successors, (85), 10 states have call predecessors, (85), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-28 04:52:35,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 927 transitions. [2024-11-28 04:52:35,612 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 927 transitions. Word has length 130 [2024-11-28 04:52:35,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:35,612 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 927 transitions. [2024-11-28 04:52:35,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 10.31578947368421) internal successors, (196), 20 states have internal predecessors, (196), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-28 04:52:35,613 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 927 transitions. [2024-11-28 04:52:35,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 04:52:35,615 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:35,615 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:35,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-28 04:52:35,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:35,818 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:35,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:35,819 INFO L85 PathProgramCache]: Analyzing trace with hash -397359431, now seen corresponding path program 1 times [2024-11-28 04:52:35,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:35,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089181901] [2024-11-28 04:52:35,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:35,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:36,153 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 21 proven. 21 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-28 04:52:36,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:36,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089181901] [2024-11-28 04:52:36,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089181901] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:36,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545753285] [2024-11-28 04:52:36,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:36,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:36,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:36,156 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:36,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 04:52:36,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:36,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:52:36,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:36,574 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:52:36,574 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:40,670 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:52:40,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545753285] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:52:40,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:52:40,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 8] total 20 [2024-11-28 04:52:40,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249122130] [2024-11-28 04:52:40,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:40,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 04:52:40,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:40,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 04:52:40,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:52:40,673 INFO L87 Difference]: Start difference. First operand 711 states and 927 transitions. Second operand has 21 states, 20 states have (on average 10.1) internal successors, (202), 21 states have internal predecessors, (202), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-28 04:52:41,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:41,240 INFO L93 Difference]: Finished difference Result 956 states and 1278 transitions. [2024-11-28 04:52:41,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:52:41,241 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 10.1) internal successors, (202), 21 states have internal predecessors, (202), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) Word has length 135 [2024-11-28 04:52:41,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:41,245 INFO L225 Difference]: With dead ends: 956 [2024-11-28 04:52:41,246 INFO L226 Difference]: Without dead ends: 955 [2024-11-28 04:52:41,246 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:52:41,247 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 532 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:41,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 373 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:52:41,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2024-11-28 04:52:41,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 710. [2024-11-28 04:52:41,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 601 states have (on average 1.2529118136439268) internal successors, (753), 614 states have internal predecessors, (753), 85 states have call successors, (85), 10 states have call predecessors, (85), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-28 04:52:41,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 923 transitions. [2024-11-28 04:52:41,345 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 923 transitions. Word has length 135 [2024-11-28 04:52:41,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:41,345 INFO L471 AbstractCegarLoop]: Abstraction has 710 states and 923 transitions. [2024-11-28 04:52:41,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 10.1) internal successors, (202), 21 states have internal predecessors, (202), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-28 04:52:41,346 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 923 transitions. [2024-11-28 04:52:41,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 04:52:41,347 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:41,347 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:41,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-28 04:52:41,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-28 04:52:41,548 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:41,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:41,548 INFO L85 PathProgramCache]: Analyzing trace with hash -397103227, now seen corresponding path program 1 times [2024-11-28 04:52:41,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:41,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166747655] [2024-11-28 04:52:41,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:41,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:41,866 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:52:41,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:41,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166747655] [2024-11-28 04:52:41,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166747655] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:41,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393896792] [2024-11-28 04:52:41,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:41,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:41,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:41,869 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:41,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 04:52:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:41,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:52:41,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:42,432 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 6 proven. 320 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 04:52:42,432 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:42,980 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 6 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:52:42,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393896792] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:52:42,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:52:42,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 36 [2024-11-28 04:52:42,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224134038] [2024-11-28 04:52:42,981 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:42,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-28 04:52:42,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:42,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-28 04:52:42,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=1047, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 04:52:42,985 INFO L87 Difference]: Start difference. First operand 710 states and 923 transitions. Second operand has 37 states, 36 states have (on average 6.222222222222222) internal successors, (224), 37 states have internal predecessors, (224), 15 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 15 states have call predecessors, (39), 15 states have call successors, (39) [2024-11-28 04:52:44,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:44,329 INFO L93 Difference]: Finished difference Result 2139 states and 2840 transitions. [2024-11-28 04:52:44,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-28 04:52:44,330 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 6.222222222222222) internal successors, (224), 37 states have internal predecessors, (224), 15 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 15 states have call predecessors, (39), 15 states have call successors, (39) Word has length 135 [2024-11-28 04:52:44,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:44,340 INFO L225 Difference]: With dead ends: 2139 [2024-11-28 04:52:44,340 INFO L226 Difference]: Without dead ends: 2131 [2024-11-28 04:52:44,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 776 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=926, Invalid=2980, Unknown=0, NotChecked=0, Total=3906 [2024-11-28 04:52:44,344 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 481 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:44,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 846 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:52:44,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2131 states. [2024-11-28 04:52:44,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2131 to 2036. [2024-11-28 04:52:44,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2036 states, 1796 states have (on average 1.2761692650334076) internal successors, (2292), 1809 states have internal predecessors, (2292), 209 states have call successors, (209), 17 states have call predecessors, (209), 17 states have return successors, (209), 209 states have call predecessors, (209), 209 states have call successors, (209) [2024-11-28 04:52:44,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2036 states to 2036 states and 2710 transitions. [2024-11-28 04:52:44,629 INFO L78 Accepts]: Start accepts. Automaton has 2036 states and 2710 transitions. Word has length 135 [2024-11-28 04:52:44,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:44,630 INFO L471 AbstractCegarLoop]: Abstraction has 2036 states and 2710 transitions. [2024-11-28 04:52:44,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 6.222222222222222) internal successors, (224), 37 states have internal predecessors, (224), 15 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 15 states have call predecessors, (39), 15 states have call successors, (39) [2024-11-28 04:52:44,630 INFO L276 IsEmpty]: Start isEmpty. Operand 2036 states and 2710 transitions. [2024-11-28 04:52:44,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 04:52:44,633 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:44,634 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-28 04:52:44,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-28 04:52:44,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-28 04:52:44,836 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:44,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:44,837 INFO L85 PathProgramCache]: Analyzing trace with hash 566759647, now seen corresponding path program 1 times [2024-11-28 04:52:44,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:44,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680802135] [2024-11-28 04:52:44,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:44,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:45,244 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:52:45,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:45,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680802135] [2024-11-28 04:52:45,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680802135] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:45,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852684522] [2024-11-28 04:52:45,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:45,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:45,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:45,247 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:45,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 04:52:45,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:45,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:52:45,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:45,888 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:52:45,888 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:48,711 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:52:48,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852684522] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:52:48,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:52:48,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-11-28 04:52:48,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787819938] [2024-11-28 04:52:48,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:48,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 04:52:48,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:48,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 04:52:48,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=298, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:52:48,714 INFO L87 Difference]: Start difference. First operand 2036 states and 2710 transitions. Second operand has 22 states, 21 states have (on average 10.19047619047619) internal successors, (214), 22 states have internal predecessors, (214), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-28 04:52:50,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:50,810 INFO L93 Difference]: Finished difference Result 2840 states and 3773 transitions. [2024-11-28 04:52:50,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:52:50,811 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.19047619047619) internal successors, (214), 22 states have internal predecessors, (214), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 136 [2024-11-28 04:52:50,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:50,825 INFO L225 Difference]: With dead ends: 2840 [2024-11-28 04:52:50,826 INFO L226 Difference]: Without dead ends: 2839 [2024-11-28 04:52:50,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=397, Invalid=659, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 04:52:50,830 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 488 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:50,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 738 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:52:50,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2839 states. [2024-11-28 04:52:51,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2839 to 2531. [2024-11-28 04:52:51,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2531 states, 2249 states have (on average 1.2738995108937305) internal successors, (2865), 2262 states have internal predecessors, (2865), 251 states have call successors, (251), 17 states have call predecessors, (251), 17 states have return successors, (251), 251 states have call predecessors, (251), 251 states have call successors, (251) [2024-11-28 04:52:51,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2531 states to 2531 states and 3367 transitions. [2024-11-28 04:52:51,198 INFO L78 Accepts]: Start accepts. Automaton has 2531 states and 3367 transitions. Word has length 136 [2024-11-28 04:52:51,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:51,200 INFO L471 AbstractCegarLoop]: Abstraction has 2531 states and 3367 transitions. [2024-11-28 04:52:51,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.19047619047619) internal successors, (214), 22 states have internal predecessors, (214), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-28 04:52:51,200 INFO L276 IsEmpty]: Start isEmpty. Operand 2531 states and 3367 transitions. [2024-11-28 04:52:51,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 04:52:51,202 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:51,202 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:51,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-28 04:52:51,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-28 04:52:51,407 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:51,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:51,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1945923821, now seen corresponding path program 1 times [2024-11-28 04:52:51,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:51,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098842923] [2024-11-28 04:52:51,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:51,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:51,764 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 04:52:51,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:52:51,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098842923] [2024-11-28 04:52:51,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098842923] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:52:51,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631894580] [2024-11-28 04:52:51,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:51,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:51,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:51,768 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:51,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 04:52:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:51,857 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:52:51,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:52,136 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 388 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-28 04:52:52,137 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:52:52,531 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 04:52:52,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631894580] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:52:52,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:52:52,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 14] total 29 [2024-11-28 04:52:52,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655872179] [2024-11-28 04:52:52,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:52:52,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-28 04:52:52,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:52:52,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-28 04:52:52,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=617, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:52:52,534 INFO L87 Difference]: Start difference. First operand 2531 states and 3367 transitions. Second operand has 29 states, 29 states have (on average 5.413793103448276) internal successors, (157), 29 states have internal predecessors, (157), 10 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) [2024-11-28 04:52:53,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:53,585 INFO L93 Difference]: Finished difference Result 3171 states and 4159 transitions. [2024-11-28 04:52:53,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-28 04:52:53,586 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 5.413793103448276) internal successors, (157), 29 states have internal predecessors, (157), 10 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) Word has length 137 [2024-11-28 04:52:53,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:53,598 INFO L225 Difference]: With dead ends: 3171 [2024-11-28 04:52:53,598 INFO L226 Difference]: Without dead ends: 2686 [2024-11-28 04:52:53,602 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=694, Invalid=2386, Unknown=0, NotChecked=0, Total=3080 [2024-11-28 04:52:53,602 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 240 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:53,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 619 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:52:53,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2024-11-28 04:52:53,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 2661. [2024-11-28 04:52:53,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 2365 states have (on average 1.2634249471458774) internal successors, (2988), 2378 states have internal predecessors, (2988), 259 states have call successors, (259), 23 states have call predecessors, (259), 23 states have return successors, (259), 259 states have call predecessors, (259), 259 states have call successors, (259) [2024-11-28 04:52:53,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 3506 transitions. [2024-11-28 04:52:53,958 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 3506 transitions. Word has length 137 [2024-11-28 04:52:53,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:53,959 INFO L471 AbstractCegarLoop]: Abstraction has 2661 states and 3506 transitions. [2024-11-28 04:52:53,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 5.413793103448276) internal successors, (157), 29 states have internal predecessors, (157), 10 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) [2024-11-28 04:52:53,960 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 3506 transitions. [2024-11-28 04:52:53,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-28 04:52:53,962 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:53,962 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:53,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-28 04:52:54,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-28 04:52:54,163 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:52:54,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:54,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1846029681, now seen corresponding path program 3 times [2024-11-28 04:52:54,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:54,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459253111] [2024-11-28 04:52:54,165 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:52:54,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:54,225 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:52:54,225 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:52:54,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1643266450] [2024-11-28 04:52:54,227 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:52:54,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:52:54,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:54,230 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:52:54,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 04:52:54,301 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 04:52:54,301 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:52:54,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:52:54,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:55,158 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 39 proven. 8 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2024-11-28 04:52:55,159 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:14,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:14,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459253111] [2024-11-28 04:53:14,140 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:53:14,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643266450] [2024-11-28 04:53:14,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643266450] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:14,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:53:14,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:53:14,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577324917] [2024-11-28 04:53:14,141 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:14,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:53:14,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:14,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:53:14,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=177, Unknown=4, NotChecked=0, Total=240 [2024-11-28 04:53:14,142 INFO L87 Difference]: Start difference. First operand 2661 states and 3506 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:53:15,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:15,193 INFO L93 Difference]: Finished difference Result 2724 states and 3568 transitions. [2024-11-28 04:53:15,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:53:15,194 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 140 [2024-11-28 04:53:15,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:15,210 INFO L225 Difference]: With dead ends: 2724 [2024-11-28 04:53:15,211 INFO L226 Difference]: Without dead ends: 2723 [2024-11-28 04:53:15,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 17.9s TimeCoverageRelationStatistics Valid=99, Invalid=277, Unknown=4, NotChecked=0, Total=380 [2024-11-28 04:53:15,213 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 100 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:15,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 165 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:53:15,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2024-11-28 04:53:15,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 2661. [2024-11-28 04:53:15,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 2365 states have (on average 1.255813953488372) internal successors, (2970), 2378 states have internal predecessors, (2970), 259 states have call successors, (259), 23 states have call predecessors, (259), 23 states have return successors, (259), 259 states have call predecessors, (259), 259 states have call successors, (259) [2024-11-28 04:53:15,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 3488 transitions. [2024-11-28 04:53:15,571 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 3488 transitions. Word has length 140 [2024-11-28 04:53:15,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:15,572 INFO L471 AbstractCegarLoop]: Abstraction has 2661 states and 3488 transitions. [2024-11-28 04:53:15,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:53:15,572 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 3488 transitions. [2024-11-28 04:53:15,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 04:53:15,574 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:15,575 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-28 04:53:15,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:15,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:15,779 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:15,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:15,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1989932688, now seen corresponding path program 2 times [2024-11-28 04:53:15,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:15,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730910171] [2024-11-28 04:53:15,780 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:53:15,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:15,824 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:53:15,824 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:53:15,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2130023584] [2024-11-28 04:53:15,825 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:53:15,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:15,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:15,830 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:15,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 04:53:15,886 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:53:15,886 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:53:15,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:53:15,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:16,260 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2024-11-28 04:53:16,260 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:53:16,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:16,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730910171] [2024-11-28 04:53:16,261 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:53:16,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130023584] [2024-11-28 04:53:16,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130023584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:16,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:16,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:53:16,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861699021] [2024-11-28 04:53:16,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:16,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:53:16,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:16,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:53:16,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:53:16,263 INFO L87 Difference]: Start difference. First operand 2661 states and 3488 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:53:16,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:16,851 INFO L93 Difference]: Finished difference Result 2661 states and 3488 transitions. [2024-11-28 04:53:16,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:53:16,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 141 [2024-11-28 04:53:16,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:16,862 INFO L225 Difference]: With dead ends: 2661 [2024-11-28 04:53:16,862 INFO L226 Difference]: Without dead ends: 2660 [2024-11-28 04:53:16,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:16,864 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 80 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:16,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 80 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:53:16,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2660 states. [2024-11-28 04:53:17,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2660 to 2485. [2024-11-28 04:53:17,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2485 states, 2208 states have (on average 1.225090579710145) internal successors, (2705), 2220 states have internal predecessors, (2705), 241 states have call successors, (241), 23 states have call predecessors, (241), 23 states have return successors, (241), 241 states have call predecessors, (241), 241 states have call successors, (241) [2024-11-28 04:53:17,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2485 states to 2485 states and 3187 transitions. [2024-11-28 04:53:17,156 INFO L78 Accepts]: Start accepts. Automaton has 2485 states and 3187 transitions. Word has length 141 [2024-11-28 04:53:17,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:17,157 INFO L471 AbstractCegarLoop]: Abstraction has 2485 states and 3187 transitions. [2024-11-28 04:53:17,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:53:17,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2485 states and 3187 transitions. [2024-11-28 04:53:17,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 04:53:17,162 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:17,162 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-28 04:53:17,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-28 04:53:17,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:17,363 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:17,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:17,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1348963944, now seen corresponding path program 4 times [2024-11-28 04:53:17,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:17,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60650217] [2024-11-28 04:53:17,364 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:53:17,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:17,405 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:53:17,405 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:53:18,011 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:53:18,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:18,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60650217] [2024-11-28 04:53:18,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60650217] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:18,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335769713] [2024-11-28 04:53:18,012 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:53:18,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:18,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:18,015 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:18,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-28 04:53:18,124 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:53:18,124 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:53:18,126 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:53:18,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:19,780 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 04:53:19,781 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:24,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335769713] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:24,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:53:24,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 22 [2024-11-28 04:53:24,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925767424] [2024-11-28 04:53:24,518 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:24,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:53:24,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:24,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:53:24,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=563, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:53:24,520 INFO L87 Difference]: Start difference. First operand 2485 states and 3187 transitions. Second operand has 23 states, 22 states have (on average 7.2727272727272725) internal successors, (160), 23 states have internal predecessors, (160), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-28 04:53:26,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:26,924 INFO L93 Difference]: Finished difference Result 2609 states and 3339 transitions. [2024-11-28 04:53:26,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:53:26,924 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 7.2727272727272725) internal successors, (160), 23 states have internal predecessors, (160), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 144 [2024-11-28 04:53:26,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:26,932 INFO L225 Difference]: With dead ends: 2609 [2024-11-28 04:53:26,932 INFO L226 Difference]: Without dead ends: 2602 [2024-11-28 04:53:26,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=200, Invalid=1282, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 04:53:26,934 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 264 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:26,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 767 Invalid, 1149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 04:53:26,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2024-11-28 04:53:27,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2486. [2024-11-28 04:53:27,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 2209 states have (on average 1.2236306020823902) internal successors, (2703), 2221 states have internal predecessors, (2703), 241 states have call successors, (241), 23 states have call predecessors, (241), 23 states have return successors, (241), 241 states have call predecessors, (241), 241 states have call successors, (241) [2024-11-28 04:53:27,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 3185 transitions. [2024-11-28 04:53:27,343 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 3185 transitions. Word has length 144 [2024-11-28 04:53:27,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:27,346 INFO L471 AbstractCegarLoop]: Abstraction has 2486 states and 3185 transitions. [2024-11-28 04:53:27,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 7.2727272727272725) internal successors, (160), 23 states have internal predecessors, (160), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-28 04:53:27,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 3185 transitions. [2024-11-28 04:53:27,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 04:53:27,350 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:27,350 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:27,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-28 04:53:27,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:27,551 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:27,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:27,551 INFO L85 PathProgramCache]: Analyzing trace with hash 736320963, now seen corresponding path program 1 times [2024-11-28 04:53:27,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:27,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914928346] [2024-11-28 04:53:27,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:27,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:53:27,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [15286072] [2024-11-28 04:53:27,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:27,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:27,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:27,585 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:27,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 04:53:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:27,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:53:27,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:28,209 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2024-11-28 04:53:28,209 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:53:28,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:28,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914928346] [2024-11-28 04:53:28,209 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:53:28,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15286072] [2024-11-28 04:53:28,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15286072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:28,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:28,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:53:28,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753489470] [2024-11-28 04:53:28,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:28,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:53:28,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:28,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:53:28,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:53:28,212 INFO L87 Difference]: Start difference. First operand 2486 states and 3185 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:53:28,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:28,594 INFO L93 Difference]: Finished difference Result 2493 states and 3191 transitions. [2024-11-28 04:53:28,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:53:28,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 147 [2024-11-28 04:53:28,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:28,602 INFO L225 Difference]: With dead ends: 2493 [2024-11-28 04:53:28,602 INFO L226 Difference]: Without dead ends: 2491 [2024-11-28 04:53:28,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:53:28,603 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 39 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:28,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 76 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:28,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2024-11-28 04:53:28,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 1936. [2024-11-28 04:53:28,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1936 states, 1713 states have (on average 1.1873905429071805) internal successors, (2034), 1723 states have internal predecessors, (2034), 189 states have call successors, (189), 23 states have call predecessors, (189), 23 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2024-11-28 04:53:28,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1936 states to 1936 states and 2412 transitions. [2024-11-28 04:53:28,953 INFO L78 Accepts]: Start accepts. Automaton has 1936 states and 2412 transitions. Word has length 147 [2024-11-28 04:53:28,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:28,954 INFO L471 AbstractCegarLoop]: Abstraction has 1936 states and 2412 transitions. [2024-11-28 04:53:28,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:53:28,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 2412 transitions. [2024-11-28 04:53:28,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 04:53:28,957 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:28,957 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:28,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-28 04:53:29,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-28 04:53:29,161 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:29,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:29,161 INFO L85 PathProgramCache]: Analyzing trace with hash 2141471629, now seen corresponding path program 1 times [2024-11-28 04:53:29,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:29,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801157512] [2024-11-28 04:53:29,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:29,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:53:29,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1448089215] [2024-11-28 04:53:29,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:29,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:29,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:29,208 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:29,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-28 04:53:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:29,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 04:53:29,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:31,051 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-28 04:53:31,052 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:31,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:31,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801157512] [2024-11-28 04:53:31,817 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:53:31,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448089215] [2024-11-28 04:53:31,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448089215] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:31,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:53:31,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:53:31,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888759658] [2024-11-28 04:53:31,817 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:31,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:53:31,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:31,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:53:31,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:53:31,819 INFO L87 Difference]: Start difference. First operand 1936 states and 2412 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-28 04:53:33,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:33,110 INFO L93 Difference]: Finished difference Result 1938 states and 2413 transitions. [2024-11-28 04:53:33,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:53:33,111 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 154 [2024-11-28 04:53:33,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:33,119 INFO L225 Difference]: With dead ends: 1938 [2024-11-28 04:53:33,119 INFO L226 Difference]: Without dead ends: 1936 [2024-11-28 04:53:33,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:53:33,121 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 14 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:33,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 463 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:53:33,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2024-11-28 04:53:33,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1936. [2024-11-28 04:53:33,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1936 states, 1713 states have (on average 1.1868067717454758) internal successors, (2033), 1723 states have internal predecessors, (2033), 189 states have call successors, (189), 23 states have call predecessors, (189), 23 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2024-11-28 04:53:33,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1936 states to 1936 states and 2411 transitions. [2024-11-28 04:53:33,424 INFO L78 Accepts]: Start accepts. Automaton has 1936 states and 2411 transitions. Word has length 154 [2024-11-28 04:53:33,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:33,425 INFO L471 AbstractCegarLoop]: Abstraction has 1936 states and 2411 transitions. [2024-11-28 04:53:33,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-28 04:53:33,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 2411 transitions. [2024-11-28 04:53:33,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-28 04:53:33,427 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:33,427 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-28 04:53:33,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:33,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-28 04:53:33,628 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:33,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:33,629 INFO L85 PathProgramCache]: Analyzing trace with hash 742955783, now seen corresponding path program 3 times [2024-11-28 04:53:33,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:33,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666766941] [2024-11-28 04:53:33,629 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:53:33,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:33,683 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-28 04:53:33,683 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:53:33,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1268436047] [2024-11-28 04:53:33,685 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:53:33,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:33,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:33,690 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:33,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-28 04:53:33,774 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:53:33,775 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:53:33,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 04:53:33,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:35,101 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 120 proven. 50 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2024-11-28 04:53:35,101 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:35,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:35,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666766941] [2024-11-28 04:53:35,452 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:53:35,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268436047] [2024-11-28 04:53:35,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268436047] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:35,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:53:35,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:53:35,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291813290] [2024-11-28 04:53:35,452 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:35,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:53:35,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:35,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:53:35,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:53:35,454 INFO L87 Difference]: Start difference. First operand 1936 states and 2411 transitions. Second operand has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-28 04:53:37,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:37,107 INFO L93 Difference]: Finished difference Result 1998 states and 2477 transitions. [2024-11-28 04:53:37,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:53:37,107 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 158 [2024-11-28 04:53:37,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:37,112 INFO L225 Difference]: With dead ends: 1998 [2024-11-28 04:53:37,112 INFO L226 Difference]: Without dead ends: 1996 [2024-11-28 04:53:37,113 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2024-11-28 04:53:37,114 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 228 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:37,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 370 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:53:37,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1996 states. [2024-11-28 04:53:37,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1996 to 1936. [2024-11-28 04:53:37,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1936 states, 1713 states have (on average 1.186223000583771) internal successors, (2032), 1723 states have internal predecessors, (2032), 189 states have call successors, (189), 23 states have call predecessors, (189), 23 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2024-11-28 04:53:37,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1936 states to 1936 states and 2410 transitions. [2024-11-28 04:53:37,422 INFO L78 Accepts]: Start accepts. Automaton has 1936 states and 2410 transitions. Word has length 158 [2024-11-28 04:53:37,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:37,422 INFO L471 AbstractCegarLoop]: Abstraction has 1936 states and 2410 transitions. [2024-11-28 04:53:37,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-28 04:53:37,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 2410 transitions. [2024-11-28 04:53:37,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-28 04:53:37,425 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:37,425 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-28 04:53:37,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-28 04:53:37,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-28 04:53:37,626 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:37,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:37,626 INFO L85 PathProgramCache]: Analyzing trace with hash 218002803, now seen corresponding path program 1 times [2024-11-28 04:53:37,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:37,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923457710] [2024-11-28 04:53:37,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:37,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:38,553 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-28 04:53:38,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:38,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923457710] [2024-11-28 04:53:38,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923457710] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:38,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108277783] [2024-11-28 04:53:38,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:38,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:38,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:38,558 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:38,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-28 04:53:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:38,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:53:38,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:40,226 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-28 04:53:40,226 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:48,666 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-28 04:53:48,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108277783] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:48,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:48,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 8] total 31 [2024-11-28 04:53:48,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549627466] [2024-11-28 04:53:48,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:48,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-28 04:53:48,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:48,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-28 04:53:48,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=820, Unknown=0, NotChecked=0, Total=992 [2024-11-28 04:53:48,669 INFO L87 Difference]: Start difference. First operand 1936 states and 2410 transitions. Second operand has 32 states, 31 states have (on average 8.64516129032258) internal successors, (268), 32 states have internal predecessors, (268), 16 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 16 states have call predecessors, (45), 16 states have call successors, (45) [2024-11-28 04:53:53,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:53,692 INFO L93 Difference]: Finished difference Result 2219 states and 2774 transitions. [2024-11-28 04:53:53,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 04:53:53,693 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 8.64516129032258) internal successors, (268), 32 states have internal predecessors, (268), 16 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 16 states have call predecessors, (45), 16 states have call successors, (45) Word has length 164 [2024-11-28 04:53:53,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:53,698 INFO L225 Difference]: With dead ends: 2219 [2024-11-28 04:53:53,698 INFO L226 Difference]: Without dead ends: 2217 [2024-11-28 04:53:53,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 308 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=559, Invalid=1697, Unknown=0, NotChecked=0, Total=2256 [2024-11-28 04:53:53,700 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 880 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:53,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 1171 Invalid, 1577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 04:53:53,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2217 states. [2024-11-28 04:53:53,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2217 to 1951. [2024-11-28 04:53:53,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1951 states, 1741 states have (on average 1.1522113727742678) internal successors, (2006), 1750 states have internal predecessors, (2006), 177 states have call successors, (177), 23 states have call predecessors, (177), 23 states have return successors, (177), 177 states have call predecessors, (177), 177 states have call successors, (177) [2024-11-28 04:53:53,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1951 states to 1951 states and 2360 transitions. [2024-11-28 04:53:53,998 INFO L78 Accepts]: Start accepts. Automaton has 1951 states and 2360 transitions. Word has length 164 [2024-11-28 04:53:53,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:53,998 INFO L471 AbstractCegarLoop]: Abstraction has 1951 states and 2360 transitions. [2024-11-28 04:53:53,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 8.64516129032258) internal successors, (268), 32 states have internal predecessors, (268), 16 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 16 states have call predecessors, (45), 16 states have call successors, (45) [2024-11-28 04:53:53,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1951 states and 2360 transitions. [2024-11-28 04:53:54,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-28 04:53:54,000 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:54,000 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-28 04:53:54,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-28 04:53:54,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-28 04:53:54,200 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:53:54,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:54,201 INFO L85 PathProgramCache]: Analyzing trace with hash 472203493, now seen corresponding path program 5 times [2024-11-28 04:53:54,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:54,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328219712] [2024-11-28 04:53:54,201 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:53:54,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:54,269 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-28 04:53:54,269 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:53:54,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1222984442] [2024-11-28 04:53:54,271 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:53:54,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:54,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:54,276 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:54,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-28 04:53:54,391 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-28 04:53:54,391 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:53:54,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-28 04:53:54,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:56,770 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:53:56,771 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:58,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:58,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328219712] [2024-11-28 04:53:58,141 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:53:58,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222984442] [2024-11-28 04:53:58,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222984442] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:58,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:53:58,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-28 04:53:58,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875174180] [2024-11-28 04:53:58,141 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:58,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:53:58,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:58,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:53:58,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:53:58,146 INFO L87 Difference]: Start difference. First operand 1951 states and 2360 transitions. Second operand has 19 states, 18 states have (on average 5.166666666666667) internal successors, (93), 19 states have internal predecessors, (93), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-28 04:54:00,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:00,898 INFO L93 Difference]: Finished difference Result 2035 states and 2465 transitions. [2024-11-28 04:54:00,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:54:00,898 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.166666666666667) internal successors, (93), 19 states have internal predecessors, (93), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 170 [2024-11-28 04:54:00,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:00,905 INFO L225 Difference]: With dead ends: 2035 [2024-11-28 04:54:00,905 INFO L226 Difference]: Without dead ends: 2033 [2024-11-28 04:54:00,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:54:00,906 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 60 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 1793 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:00,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 921 Invalid, 1797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1793 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 04:54:00,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2033 states. [2024-11-28 04:54:01,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2033 to 1957. [2024-11-28 04:54:01,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1957 states, 1745 states have (on average 1.151862464183381) internal successors, (2010), 1754 states have internal predecessors, (2010), 179 states have call successors, (179), 23 states have call predecessors, (179), 23 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2024-11-28 04:54:01,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1957 states to 1957 states and 2368 transitions. [2024-11-28 04:54:01,277 INFO L78 Accepts]: Start accepts. Automaton has 1957 states and 2368 transitions. Word has length 170 [2024-11-28 04:54:01,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:01,277 INFO L471 AbstractCegarLoop]: Abstraction has 1957 states and 2368 transitions. [2024-11-28 04:54:01,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.166666666666667) internal successors, (93), 19 states have internal predecessors, (93), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-28 04:54:01,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1957 states and 2368 transitions. [2024-11-28 04:54:01,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-28 04:54:01,280 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:01,280 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-28 04:54:01,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-11-28 04:54:01,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-28 04:54:01,482 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:01,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:01,483 INFO L85 PathProgramCache]: Analyzing trace with hash -505194620, now seen corresponding path program 1 times [2024-11-28 04:54:01,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:01,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929176392] [2024-11-28 04:54:01,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:01,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:02,206 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 6 proven. 110 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-28 04:54:02,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:02,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929176392] [2024-11-28 04:54:02,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929176392] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:02,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370311519] [2024-11-28 04:54:02,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:02,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:02,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:02,208 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:02,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-28 04:54:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:02,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:54:02,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:04,160 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 18 proven. 98 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-28 04:54:04,160 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:04,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370311519] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:04,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:54:04,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2024-11-28 04:54:04,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115496220] [2024-11-28 04:54:04,859 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:04,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-28 04:54:04,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:04,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-28 04:54:04,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:54:04,860 INFO L87 Difference]: Start difference. First operand 1957 states and 2368 transitions. Second operand has 25 states, 24 states have (on average 8.0) internal successors, (192), 25 states have internal predecessors, (192), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2024-11-28 04:54:08,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:08,344 INFO L93 Difference]: Finished difference Result 2566 states and 3150 transitions. [2024-11-28 04:54:08,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-28 04:54:08,345 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 8.0) internal successors, (192), 25 states have internal predecessors, (192), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) Word has length 170 [2024-11-28 04:54:08,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:08,354 INFO L225 Difference]: With dead ends: 2566 [2024-11-28 04:54:08,354 INFO L226 Difference]: Without dead ends: 2565 [2024-11-28 04:54:08,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=431, Invalid=2221, Unknown=0, NotChecked=0, Total=2652 [2024-11-28 04:54:08,357 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 765 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:08,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 974 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 04:54:08,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2024-11-28 04:54:08,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 2062. [2024-11-28 04:54:08,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2062 states, 1840 states have (on average 1.1483695652173913) internal successors, (2113), 1849 states have internal predecessors, (2113), 189 states have call successors, (189), 23 states have call predecessors, (189), 23 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2024-11-28 04:54:08,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 2491 transitions. [2024-11-28 04:54:08,768 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 2491 transitions. Word has length 170 [2024-11-28 04:54:08,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:08,769 INFO L471 AbstractCegarLoop]: Abstraction has 2062 states and 2491 transitions. [2024-11-28 04:54:08,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 8.0) internal successors, (192), 25 states have internal predecessors, (192), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2024-11-28 04:54:08,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 2491 transitions. [2024-11-28 04:54:08,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-28 04:54:08,771 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:08,771 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:08,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-28 04:54:08,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-28 04:54:08,972 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:08,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:08,972 INFO L85 PathProgramCache]: Analyzing trace with hash 666958840, now seen corresponding path program 1 times [2024-11-28 04:54:08,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:08,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237196604] [2024-11-28 04:54:08,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:08,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:09,233 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 34 proven. 82 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:54:09,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:09,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237196604] [2024-11-28 04:54:09,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237196604] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:09,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159803856] [2024-11-28 04:54:09,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:09,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:09,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:09,241 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:09,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-28 04:54:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:09,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:54:09,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:09,620 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 72 proven. 44 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:54:09,620 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:10,121 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 72 proven. 44 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:54:10,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159803856] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:54:10,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:54:10,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2024-11-28 04:54:10,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887569864] [2024-11-28 04:54:10,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:10,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:54:10,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:10,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:54:10,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:54:10,123 INFO L87 Difference]: Start difference. First operand 2062 states and 2491 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-28 04:54:10,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:10,593 INFO L93 Difference]: Finished difference Result 2090 states and 2512 transitions. [2024-11-28 04:54:10,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:54:10,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 181 [2024-11-28 04:54:10,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:10,599 INFO L225 Difference]: With dead ends: 2090 [2024-11-28 04:54:10,599 INFO L226 Difference]: Without dead ends: 2084 [2024-11-28 04:54:10,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 357 SyntacticMatches, 8 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:54:10,601 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 64 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:10,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 413 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:54:10,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2084 states. [2024-11-28 04:54:11,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2084 to 2062. [2024-11-28 04:54:11,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2062 states, 1840 states have (on average 1.1445652173913043) internal successors, (2106), 1849 states have internal predecessors, (2106), 189 states have call successors, (189), 23 states have call predecessors, (189), 23 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2024-11-28 04:54:11,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 2484 transitions. [2024-11-28 04:54:11,032 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 2484 transitions. Word has length 181 [2024-11-28 04:54:11,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:11,032 INFO L471 AbstractCegarLoop]: Abstraction has 2062 states and 2484 transitions. [2024-11-28 04:54:11,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-28 04:54:11,033 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 2484 transitions. [2024-11-28 04:54:11,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-28 04:54:11,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:11,035 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:11,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-11-28 04:54:11,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-28 04:54:11,235 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:11,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:11,236 INFO L85 PathProgramCache]: Analyzing trace with hash 181328889, now seen corresponding path program 2 times [2024-11-28 04:54:11,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:11,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487571293] [2024-11-28 04:54:11,236 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:54:11,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:11,256 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:54:11,256 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:54:11,693 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 49 proven. 78 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:54:11,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:11,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487571293] [2024-11-28 04:54:11,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487571293] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:11,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67837630] [2024-11-28 04:54:11,694 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:54:11,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:11,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:11,696 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:11,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-28 04:54:11,781 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:54:11,781 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:54:11,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:54:11,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:12,735 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 162 proven. 85 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-28 04:54:12,735 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:16,127 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 57 proven. 70 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 04:54:16,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67837630] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:54:16,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:54:16,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 10] total 23 [2024-11-28 04:54:16,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58166710] [2024-11-28 04:54:16,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:16,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:54:16,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:16,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:54:16,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:54:16,129 INFO L87 Difference]: Start difference. First operand 2062 states and 2484 transitions. Second operand has 23 states, 23 states have (on average 11.565217391304348) internal successors, (266), 23 states have internal predecessors, (266), 14 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 14 states have call predecessors, (49), 14 states have call successors, (49) [2024-11-28 04:54:17,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:17,502 INFO L93 Difference]: Finished difference Result 2319 states and 2794 transitions. [2024-11-28 04:54:17,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:54:17,503 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 11.565217391304348) internal successors, (266), 23 states have internal predecessors, (266), 14 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 14 states have call predecessors, (49), 14 states have call successors, (49) Word has length 181 [2024-11-28 04:54:17,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:17,505 INFO L225 Difference]: With dead ends: 2319 [2024-11-28 04:54:17,505 INFO L226 Difference]: Without dead ends: 743 [2024-11-28 04:54:17,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=263, Invalid=1143, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 04:54:17,508 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 92 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:17,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 735 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:54:17,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2024-11-28 04:54:17,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 743. [2024-11-28 04:54:17,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 643 states have (on average 1.1415241057542769) internal successors, (734), 652 states have internal predecessors, (734), 71 states have call successors, (71), 19 states have call predecessors, (71), 19 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-28 04:54:17,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 876 transitions. [2024-11-28 04:54:17,616 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 876 transitions. Word has length 181 [2024-11-28 04:54:17,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:17,616 INFO L471 AbstractCegarLoop]: Abstraction has 743 states and 876 transitions. [2024-11-28 04:54:17,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.565217391304348) internal successors, (266), 23 states have internal predecessors, (266), 14 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 14 states have call predecessors, (49), 14 states have call successors, (49) [2024-11-28 04:54:17,616 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 876 transitions. [2024-11-28 04:54:17,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-28 04:54:17,617 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:17,618 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-28 04:54:17,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-28 04:54:17,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:17,818 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:17,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:17,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1723224343, now seen corresponding path program 1 times [2024-11-28 04:54:17,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:17,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728870492] [2024-11-28 04:54:17,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:17,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:18,185 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 38 proven. 84 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:54:18,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:18,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728870492] [2024-11-28 04:54:18,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728870492] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:18,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062454175] [2024-11-28 04:54:18,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:18,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:18,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:18,189 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:18,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-28 04:54:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:18,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:54:18,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:18,646 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 698 trivial. 0 not checked. [2024-11-28 04:54:18,647 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:54:18,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062454175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:18,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:54:18,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-28 04:54:18,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937177474] [2024-11-28 04:54:18,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:18,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:54:18,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:18,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:54:18,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:54:18,649 INFO L87 Difference]: Start difference. First operand 743 states and 876 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:54:18,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:18,835 INFO L93 Difference]: Finished difference Result 743 states and 876 transitions. [2024-11-28 04:54:18,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:54:18,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 184 [2024-11-28 04:54:18,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:18,837 INFO L225 Difference]: With dead ends: 743 [2024-11-28 04:54:18,838 INFO L226 Difference]: Without dead ends: 742 [2024-11-28 04:54:18,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 184 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:54:18,839 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 41 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:18,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 103 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:54:18,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2024-11-28 04:54:18,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 728. [2024-11-28 04:54:18,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 631 states have (on average 1.1299524564183836) internal successors, (713), 639 states have internal predecessors, (713), 69 states have call successors, (69), 19 states have call predecessors, (69), 19 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-28 04:54:18,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 851 transitions. [2024-11-28 04:54:18,981 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 851 transitions. Word has length 184 [2024-11-28 04:54:18,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:18,981 INFO L471 AbstractCegarLoop]: Abstraction has 728 states and 851 transitions. [2024-11-28 04:54:18,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:54:18,981 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 851 transitions. [2024-11-28 04:54:18,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 04:54:18,983 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:18,983 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:18,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-11-28 04:54:19,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2024-11-28 04:54:19,184 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:19,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:19,184 INFO L85 PathProgramCache]: Analyzing trace with hash 786670392, now seen corresponding path program 1 times [2024-11-28 04:54:19,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:19,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427187797] [2024-11-28 04:54:19,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:19,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:19,869 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:54:19,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:19,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427187797] [2024-11-28 04:54:19,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427187797] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:19,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354442213] [2024-11-28 04:54:19,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:19,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:19,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:19,872 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:19,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-28 04:54:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:19,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-28 04:54:19,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:21,277 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:54:21,277 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:29,762 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:54:29,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354442213] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:54:29,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:54:29,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 8] total 29 [2024-11-28 04:54:29,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541492467] [2024-11-28 04:54:29,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:29,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-28 04:54:29,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:29,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-28 04:54:29,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=593, Unknown=0, NotChecked=0, Total=870 [2024-11-28 04:54:29,765 INFO L87 Difference]: Start difference. First operand 728 states and 851 transitions. Second operand has 30 states, 29 states have (on average 10.172413793103448) internal successors, (295), 30 states have internal predecessors, (295), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) [2024-11-28 04:54:38,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:38,680 INFO L93 Difference]: Finished difference Result 1503 states and 1819 transitions. [2024-11-28 04:54:38,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-28 04:54:38,681 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 10.172413793103448) internal successors, (295), 30 states have internal predecessors, (295), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) Word has length 188 [2024-11-28 04:54:38,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:38,684 INFO L225 Difference]: With dead ends: 1503 [2024-11-28 04:54:38,684 INFO L226 Difference]: Without dead ends: 1502 [2024-11-28 04:54:38,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 960 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1072, Invalid=1898, Unknown=0, NotChecked=0, Total=2970 [2024-11-28 04:54:38,685 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 835 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 1564 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:38,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 1192 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1564 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-28 04:54:38,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2024-11-28 04:54:38,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1225. [2024-11-28 04:54:38,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 1080 states have (on average 1.1472222222222221) internal successors, (1239), 1088 states have internal predecessors, (1239), 117 states have call successors, (117), 19 states have call predecessors, (117), 19 states have return successors, (117), 117 states have call predecessors, (117), 117 states have call successors, (117) [2024-11-28 04:54:38,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1473 transitions. [2024-11-28 04:54:38,944 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1473 transitions. Word has length 188 [2024-11-28 04:54:38,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:38,944 INFO L471 AbstractCegarLoop]: Abstraction has 1225 states and 1473 transitions. [2024-11-28 04:54:38,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 10.172413793103448) internal successors, (295), 30 states have internal predecessors, (295), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) [2024-11-28 04:54:38,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1473 transitions. [2024-11-28 04:54:38,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-28 04:54:38,945 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:38,945 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:38,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-11-28 04:54:39,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:39,146 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:39,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:39,146 INFO L85 PathProgramCache]: Analyzing trace with hash 858461978, now seen corresponding path program 1 times [2024-11-28 04:54:39,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:39,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410217172] [2024-11-28 04:54:39,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:39,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:39,858 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 04:54:39,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:39,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410217172] [2024-11-28 04:54:39,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410217172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:39,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356969780] [2024-11-28 04:54:39,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:39,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:39,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:39,861 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:39,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-28 04:54:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:39,956 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:54:39,959 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:40,629 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 0 proven. 766 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-28 04:54:40,629 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:41,733 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-28 04:54:41,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356969780] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:54:41,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:54:41,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 18] total 37 [2024-11-28 04:54:41,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701693830] [2024-11-28 04:54:41,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:41,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-28 04:54:41,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:41,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-28 04:54:41,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=1029, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 04:54:41,736 INFO L87 Difference]: Start difference. First operand 1225 states and 1473 transitions. Second operand has 37 states, 37 states have (on average 5.864864864864865) internal successors, (217), 37 states have internal predecessors, (217), 14 states have call successors, (57), 8 states have call predecessors, (57), 8 states have return successors, (57), 14 states have call predecessors, (57), 14 states have call successors, (57) [2024-11-28 04:54:44,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:44,205 INFO L93 Difference]: Finished difference Result 1700 states and 2011 transitions. [2024-11-28 04:54:44,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-28 04:54:44,206 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 5.864864864864865) internal successors, (217), 37 states have internal predecessors, (217), 14 states have call successors, (57), 8 states have call predecessors, (57), 8 states have return successors, (57), 14 states have call predecessors, (57), 14 states have call successors, (57) Word has length 189 [2024-11-28 04:54:44,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:44,208 INFO L225 Difference]: With dead ends: 1700 [2024-11-28 04:54:44,208 INFO L226 Difference]: Without dead ends: 1495 [2024-11-28 04:54:44,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1386 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1151, Invalid=4105, Unknown=0, NotChecked=0, Total=5256 [2024-11-28 04:54:44,210 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 283 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:44,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 710 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:54:44,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2024-11-28 04:54:44,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1464. [2024-11-28 04:54:44,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1294 states have (on average 1.1267387944358578) internal successors, (1458), 1302 states have internal predecessors, (1458), 133 states have call successors, (133), 28 states have call predecessors, (133), 28 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2024-11-28 04:54:44,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 1724 transitions. [2024-11-28 04:54:44,497 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 1724 transitions. Word has length 189 [2024-11-28 04:54:44,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:44,497 INFO L471 AbstractCegarLoop]: Abstraction has 1464 states and 1724 transitions. [2024-11-28 04:54:44,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 5.864864864864865) internal successors, (217), 37 states have internal predecessors, (217), 14 states have call successors, (57), 8 states have call predecessors, (57), 8 states have return successors, (57), 14 states have call predecessors, (57), 14 states have call successors, (57) [2024-11-28 04:54:44,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 1724 transitions. [2024-11-28 04:54:44,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-28 04:54:44,498 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:44,498 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-28 04:54:44,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-11-28 04:54:44,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:44,699 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:44,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:44,699 INFO L85 PathProgramCache]: Analyzing trace with hash -539123422, now seen corresponding path program 6 times [2024-11-28 04:54:44,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:44,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833434331] [2024-11-28 04:54:44,699 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:54:44,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:44,741 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-28 04:54:44,741 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:54:44,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1667712088] [2024-11-28 04:54:44,743 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:54:44,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:44,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:44,748 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:44,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-28 04:54:44,843 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-11-28 04:54:44,844 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:54:44,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:54:44,850 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:47,629 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 106 proven. 38 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2024-11-28 04:54:47,629 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:49,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:49,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833434331] [2024-11-28 04:54:49,618 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:54:49,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667712088] [2024-11-28 04:54:49,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667712088] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:49,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:54:49,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-28 04:54:49,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169020677] [2024-11-28 04:54:49,619 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:49,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:54:49,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:49,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:54:49,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:54:49,620 INFO L87 Difference]: Start difference. First operand 1464 states and 1724 transitions. Second operand has 17 states, 16 states have (on average 4.9375) internal successors, (79), 17 states have internal predecessors, (79), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:54:52,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:52,972 INFO L93 Difference]: Finished difference Result 1746 states and 2073 transitions. [2024-11-28 04:54:52,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:54:52,973 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.9375) internal successors, (79), 17 states have internal predecessors, (79), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 196 [2024-11-28 04:54:52,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:52,977 INFO L225 Difference]: With dead ends: 1746 [2024-11-28 04:54:52,977 INFO L226 Difference]: Without dead ends: 1744 [2024-11-28 04:54:52,978 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=139, Invalid=563, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:54:52,979 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 75 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:52,979 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 716 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 04:54:52,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2024-11-28 04:54:53,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1500. [2024-11-28 04:54:53,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1326 states have (on average 1.1244343891402715) internal successors, (1491), 1334 states have internal predecessors, (1491), 137 states have call successors, (137), 28 states have call predecessors, (137), 28 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-28 04:54:53,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1765 transitions. [2024-11-28 04:54:53,317 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1765 transitions. Word has length 196 [2024-11-28 04:54:53,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:53,318 INFO L471 AbstractCegarLoop]: Abstraction has 1500 states and 1765 transitions. [2024-11-28 04:54:53,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.9375) internal successors, (79), 17 states have internal predecessors, (79), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:54:53,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1765 transitions. [2024-11-28 04:54:53,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-28 04:54:53,319 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:53,319 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-28 04:54:53,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-11-28 04:54:53,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:53,520 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:54:53,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:53,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1516521535, now seen corresponding path program 2 times [2024-11-28 04:54:53,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:53,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421915623] [2024-11-28 04:54:53,521 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:54:53,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:53,537 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:54:53,537 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:54:54,372 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 6 proven. 148 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:54:54,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:54,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421915623] [2024-11-28 04:54:54,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421915623] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:54,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776930565] [2024-11-28 04:54:54,373 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:54:54,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:54,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:54,376 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:54,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-28 04:54:54,485 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:54:54,485 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:54:54,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:54:54,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:56,511 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:54:56,511 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:57,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776930565] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:57,251 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:54:57,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2024-11-28 04:54:57,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619823340] [2024-11-28 04:54:57,251 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:57,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 04:54:57,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:57,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 04:54:57,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=792, Unknown=0, NotChecked=0, Total=930 [2024-11-28 04:54:57,253 INFO L87 Difference]: Start difference. First operand 1500 states and 1765 transitions. Second operand has 28 states, 27 states have (on average 7.925925925925926) internal successors, (214), 28 states have internal predecessors, (214), 14 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) [2024-11-28 04:55:01,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:55:01,761 INFO L93 Difference]: Finished difference Result 1855 states and 2209 transitions. [2024-11-28 04:55:01,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-28 04:55:01,761 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 7.925925925925926) internal successors, (214), 28 states have internal predecessors, (214), 14 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) Word has length 196 [2024-11-28 04:55:01,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:55:01,764 INFO L225 Difference]: With dead ends: 1855 [2024-11-28 04:55:01,764 INFO L226 Difference]: Without dead ends: 1844 [2024-11-28 04:55:01,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 198 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1059 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=734, Invalid=3172, Unknown=0, NotChecked=0, Total=3906 [2024-11-28 04:55:01,765 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 959 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:55:01,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 1213 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 04:55:01,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2024-11-28 04:55:02,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1590. [2024-11-28 04:55:02,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1410 states have (on average 1.1205673758865249) internal successors, (1580), 1418 states have internal predecessors, (1580), 143 states have call successors, (143), 28 states have call predecessors, (143), 28 states have return successors, (143), 143 states have call predecessors, (143), 143 states have call successors, (143) [2024-11-28 04:55:02,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 1866 transitions. [2024-11-28 04:55:02,130 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 1866 transitions. Word has length 196 [2024-11-28 04:55:02,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:55:02,130 INFO L471 AbstractCegarLoop]: Abstraction has 1590 states and 1866 transitions. [2024-11-28 04:55:02,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 7.925925925925926) internal successors, (214), 28 states have internal predecessors, (214), 14 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) [2024-11-28 04:55:02,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 1866 transitions. [2024-11-28 04:55:02,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-28 04:55:02,133 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:55:02,133 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2024-11-28 04:55:02,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2024-11-28 04:55:02,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:55:02,338 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:55:02,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:55:02,338 INFO L85 PathProgramCache]: Analyzing trace with hash 519888559, now seen corresponding path program 2 times [2024-11-28 04:55:02,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:55:02,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531515980] [2024-11-28 04:55:02,339 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:55:02,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:55:02,358 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:55:02,358 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:55:02,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 40 proven. 66 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-28 04:55:02,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:55:02,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531515980] [2024-11-28 04:55:02,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531515980] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:55:02,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266093733] [2024-11-28 04:55:02,961 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:55:02,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:55:02,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:55:02,963 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:55:02,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-28 04:55:03,069 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:55:03,069 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:55:03,071 INFO L256 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-28 04:55:03,073 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:55:05,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-28 04:55:05,526 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:55:23,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-28 04:55:23,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266093733] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:55:23,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:55:23,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 20, 16] total 45 [2024-11-28 04:55:23,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687893326] [2024-11-28 04:55:23,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:55:23,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-28 04:55:23,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:55:23,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-28 04:55:23,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=562, Invalid=1508, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 04:55:23,108 INFO L87 Difference]: Start difference. First operand 1590 states and 1866 transitions. Second operand has 46 states, 45 states have (on average 6.844444444444444) internal successors, (308), 46 states have internal predecessors, (308), 20 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 20 states have call predecessors, (54), 20 states have call successors, (54) [2024-11-28 04:56:42,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:42,132 INFO L93 Difference]: Finished difference Result 3201 states and 3910 transitions. [2024-11-28 04:56:42,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2024-11-28 04:56:42,133 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 6.844444444444444) internal successors, (308), 46 states have internal predecessors, (308), 20 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 20 states have call predecessors, (54), 20 states have call successors, (54) Word has length 218 [2024-11-28 04:56:42,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:42,137 INFO L225 Difference]: With dead ends: 3201 [2024-11-28 04:56:42,137 INFO L226 Difference]: Without dead ends: 3200 [2024-11-28 04:56:42,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 397 SyntacticMatches, 4 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13586 ImplicationChecksByTransitivity, 70.6s TimeCoverageRelationStatistics Valid=7615, Invalid=21455, Unknown=0, NotChecked=0, Total=29070 [2024-11-28 04:56:42,140 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 2936 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 3351 mSolverCounterSat, 645 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2940 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 3996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 645 IncrementalHoareTripleChecker+Valid, 3351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:42,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2940 Valid, 1608 Invalid, 3996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [645 Valid, 3351 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2024-11-28 04:56:42,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3200 states. [2024-11-28 04:56:42,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3200 to 1928. [2024-11-28 04:56:42,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1928 states, 1718 states have (on average 1.1257275902211874) internal successors, (1934), 1726 states have internal predecessors, (1934), 173 states have call successors, (173), 28 states have call predecessors, (173), 28 states have return successors, (173), 173 states have call predecessors, (173), 173 states have call successors, (173) [2024-11-28 04:56:42,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1928 states to 1928 states and 2280 transitions. [2024-11-28 04:56:42,801 INFO L78 Accepts]: Start accepts. Automaton has 1928 states and 2280 transitions. Word has length 218 [2024-11-28 04:56:42,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:42,801 INFO L471 AbstractCegarLoop]: Abstraction has 1928 states and 2280 transitions. [2024-11-28 04:56:42,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 6.844444444444444) internal successors, (308), 46 states have internal predecessors, (308), 20 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 20 states have call predecessors, (54), 20 states have call successors, (54) [2024-11-28 04:56:42,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1928 states and 2280 transitions. [2024-11-28 04:56:42,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-28 04:56:42,802 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:42,803 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-28 04:56:42,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-11-28 04:56:43,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:43,003 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:56:43,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:43,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1041427010, now seen corresponding path program 3 times [2024-11-28 04:56:43,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:43,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838179496] [2024-11-28 04:56:43,004 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:56:43,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:43,036 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-28 04:56:43,036 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:56:43,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1032386808] [2024-11-28 04:56:43,038 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:56:43,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:43,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:43,045 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:43,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-28 04:56:43,112 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:56:43,112 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:43,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:56:43,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:44,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 116 proven. 8 refuted. 0 times theorem prover too weak. 922 trivial. 0 not checked. [2024-11-28 04:56:44,302 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:46,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:46,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838179496] [2024-11-28 04:56:46,919 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:56:46,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032386808] [2024-11-28 04:56:46,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032386808] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:46,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:56:46,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:56:46,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561059686] [2024-11-28 04:56:46,919 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:46,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:56:46,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:46,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:56:46,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:56:46,920 INFO L87 Difference]: Start difference. First operand 1928 states and 2280 transitions. Second operand has 14 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:56:48,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:48,981 INFO L93 Difference]: Finished difference Result 2492 states and 3003 transitions. [2024-11-28 04:56:48,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 04:56:48,981 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 222 [2024-11-28 04:56:48,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:48,984 INFO L225 Difference]: With dead ends: 2492 [2024-11-28 04:56:48,984 INFO L226 Difference]: Without dead ends: 2490 [2024-11-28 04:56:48,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=257, Invalid=735, Unknown=0, NotChecked=0, Total=992 [2024-11-28 04:56:48,985 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 144 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:48,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 324 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:56:48,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2024-11-28 04:56:49,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 1616. [2024-11-28 04:56:49,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1437 states have (on average 1.1210855949895615) internal successors, (1611), 1445 states have internal predecessors, (1611), 143 states have call successors, (143), 27 states have call predecessors, (143), 27 states have return successors, (143), 143 states have call predecessors, (143), 143 states have call successors, (143) [2024-11-28 04:56:49,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 1897 transitions. [2024-11-28 04:56:49,465 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 1897 transitions. Word has length 222 [2024-11-28 04:56:49,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:49,465 INFO L471 AbstractCegarLoop]: Abstraction has 1616 states and 1897 transitions. [2024-11-28 04:56:49,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:56:49,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 1897 transitions. [2024-11-28 04:56:49,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-28 04:56:49,467 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:49,467 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2024-11-28 04:56:49,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:49,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-28 04:56:49,667 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:56:49,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:49,668 INFO L85 PathProgramCache]: Analyzing trace with hash 504990776, now seen corresponding path program 7 times [2024-11-28 04:56:49,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:49,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169987867] [2024-11-28 04:56:49,668 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:56:49,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:56:49,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [728482572] [2024-11-28 04:56:49,706 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:56:49,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:49,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:49,709 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:49,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-28 04:56:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:49,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-28 04:56:49,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:52,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-28 04:56:52,454 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:53,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:53,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169987867] [2024-11-28 04:56:53,658 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:56:53,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728482572] [2024-11-28 04:56:53,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728482572] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:53,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:56:53,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2024-11-28 04:56:53,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351511029] [2024-11-28 04:56:53,658 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:53,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 04:56:53,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:53,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 04:56:53,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=688, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:56:53,659 INFO L87 Difference]: Start difference. First operand 1616 states and 1897 transitions. Second operand has 24 states, 23 states have (on average 5.391304347826087) internal successors, (124), 24 states have internal predecessors, (124), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2024-11-28 04:56:57,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:57,908 INFO L93 Difference]: Finished difference Result 1698 states and 1996 transitions. [2024-11-28 04:56:57,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 04:56:57,908 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.391304347826087) internal successors, (124), 24 states have internal predecessors, (124), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) Word has length 226 [2024-11-28 04:56:57,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:57,910 INFO L225 Difference]: With dead ends: 1698 [2024-11-28 04:56:57,910 INFO L226 Difference]: Without dead ends: 1697 [2024-11-28 04:56:57,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=146, Invalid=784, Unknown=0, NotChecked=0, Total=930 [2024-11-28 04:56:57,911 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 71 mSDsluCounter, 1478 mSDsCounter, 0 mSdLazyCounter, 3104 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1604 SdHoareTripleChecker+Invalid, 3111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 3104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:57,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1604 Invalid, 3111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 3104 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-28 04:56:57,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2024-11-28 04:56:58,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1586. [2024-11-28 04:56:58,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1409 states have (on average 1.1220723917672109) internal successors, (1581), 1417 states have internal predecessors, (1581), 141 states have call successors, (141), 27 states have call predecessors, (141), 27 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-28 04:56:58,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 1863 transitions. [2024-11-28 04:56:58,290 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 1863 transitions. Word has length 226 [2024-11-28 04:56:58,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:58,290 INFO L471 AbstractCegarLoop]: Abstraction has 1586 states and 1863 transitions. [2024-11-28 04:56:58,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.391304347826087) internal successors, (124), 24 states have internal predecessors, (124), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2024-11-28 04:56:58,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 1863 transitions. [2024-11-28 04:56:58,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-28 04:56:58,291 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:58,291 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1] [2024-11-28 04:56:58,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2024-11-28 04:56:58,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-11-28 04:56:58,492 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:56:58,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:58,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1364431385, now seen corresponding path program 2 times [2024-11-28 04:56:58,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:58,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528032111] [2024-11-28 04:56:58,492 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:58,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:58,507 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:56:58,507 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:58,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 0 proven. 504 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:56:58,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:58,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528032111] [2024-11-28 04:56:58,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528032111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:58,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021669323] [2024-11-28 04:56:58,825 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:58,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:58,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:58,828 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:58,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-11-28 04:56:58,931 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:56:58,931 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:58,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:56:58,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:59,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 0 proven. 504 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:56:59,341 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:57:00,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 0 proven. 504 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:57:00,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021669323] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:57:00,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:57:00,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-28 04:57:00,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530147753] [2024-11-28 04:57:00,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:57:00,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 04:57:00,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:00,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 04:57:00,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:57:00,102 INFO L87 Difference]: Start difference. First operand 1586 states and 1863 transitions. Second operand has 21 states, 20 states have (on average 10.8) internal successors, (216), 21 states have internal predecessors, (216), 19 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 19 states have call predecessors, (57), 19 states have call successors, (57) [2024-11-28 04:57:02,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:02,453 INFO L93 Difference]: Finished difference Result 4787 states and 5739 transitions. [2024-11-28 04:57:02,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:57:02,453 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 10.8) internal successors, (216), 21 states have internal predecessors, (216), 19 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 19 states have call predecessors, (57), 19 states have call successors, (57) Word has length 236 [2024-11-28 04:57:02,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:02,459 INFO L225 Difference]: With dead ends: 4787 [2024-11-28 04:57:02,459 INFO L226 Difference]: Without dead ends: 4786 [2024-11-28 04:57:02,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:57:02,460 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 1110 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:02,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1146 Valid, 796 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:57:02,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4786 states. [2024-11-28 04:57:02,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4786 to 1700. [2024-11-28 04:57:02,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 1499 states have (on average 1.1300867244829886) internal successors, (1694), 1507 states have internal predecessors, (1694), 165 states have call successors, (165), 27 states have call predecessors, (165), 27 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:57:02,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2024 transitions. [2024-11-28 04:57:02,994 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2024 transitions. Word has length 236 [2024-11-28 04:57:02,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:02,994 INFO L471 AbstractCegarLoop]: Abstraction has 1700 states and 2024 transitions. [2024-11-28 04:57:02,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 10.8) internal successors, (216), 21 states have internal predecessors, (216), 19 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 19 states have call predecessors, (57), 19 states have call successors, (57) [2024-11-28 04:57:02,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2024 transitions. [2024-11-28 04:57:02,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-28 04:57:02,997 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:02,997 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:03,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2024-11-28 04:57:03,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-28 04:57:03,202 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:57:03,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:03,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1843276417, now seen corresponding path program 3 times [2024-11-28 04:57:03,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:03,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183287580] [2024-11-28 04:57:03,202 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:57:03,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:03,242 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-28 04:57:03,243 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:03,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 72 proven. 145 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-28 04:57:03,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:03,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183287580] [2024-11-28 04:57:03,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183287580] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:03,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537250031] [2024-11-28 04:57:03,736 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:57:03,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:03,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:03,738 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:03,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-28 04:57:03,809 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:57:03,809 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:03,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:57:03,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:04,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 117 proven. 50 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2024-11-28 04:57:04,586 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:57:05,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 1142 trivial. 0 not checked. [2024-11-28 04:57:05,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537250031] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:05,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:57:05,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 8] total 20 [2024-11-28 04:57:05,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335064687] [2024-11-28 04:57:05,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:57:05,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:57:05,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:05,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:57:05,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:57:05,149 INFO L87 Difference]: Start difference. First operand 1700 states and 2024 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:57:06,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:06,271 INFO L93 Difference]: Finished difference Result 1713 states and 2038 transitions. [2024-11-28 04:57:06,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:57:06,271 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 233 [2024-11-28 04:57:06,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:06,273 INFO L225 Difference]: With dead ends: 1713 [2024-11-28 04:57:06,274 INFO L226 Difference]: Without dead ends: 1712 [2024-11-28 04:57:06,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 459 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:57:06,274 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 105 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:06,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 129 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:57:06,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2024-11-28 04:57:06,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1701. [2024-11-28 04:57:06,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1500 states have (on average 1.13) internal successors, (1695), 1508 states have internal predecessors, (1695), 165 states have call successors, (165), 27 states have call predecessors, (165), 27 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:57:06,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2025 transitions. [2024-11-28 04:57:06,682 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2025 transitions. Word has length 233 [2024-11-28 04:57:06,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:06,682 INFO L471 AbstractCegarLoop]: Abstraction has 1701 states and 2025 transitions. [2024-11-28 04:57:06,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:57:06,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2025 transitions. [2024-11-28 04:57:06,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-28 04:57:06,684 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:06,684 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:06,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-11-28 04:57:06,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:06,884 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:57:06,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:06,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1862106559, now seen corresponding path program 1 times [2024-11-28 04:57:06,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:06,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725322442] [2024-11-28 04:57:06,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:06,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:07,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 72 proven. 145 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-28 04:57:07,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:07,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725322442] [2024-11-28 04:57:07,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725322442] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:07,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644418139] [2024-11-28 04:57:07,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:07,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:07,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:07,302 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:07,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-11-28 04:57:07,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:07,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-28 04:57:07,396 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:08,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-28 04:57:08,903 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:57:09,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644418139] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:09,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:57:09,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 19] total 24 [2024-11-28 04:57:09,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126428933] [2024-11-28 04:57:09,090 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:57:09,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 04:57:09,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:09,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 04:57:09,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:57:09,091 INFO L87 Difference]: Start difference. First operand 1701 states and 2025 transitions. Second operand has 24 states, 24 states have (on average 9.916666666666666) internal successors, (238), 24 states have internal predecessors, (238), 13 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) [2024-11-28 04:57:11,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:11,820 INFO L93 Difference]: Finished difference Result 1769 states and 2090 transitions. [2024-11-28 04:57:11,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:57:11,821 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.916666666666666) internal successors, (238), 24 states have internal predecessors, (238), 13 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) Word has length 235 [2024-11-28 04:57:11,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:11,823 INFO L225 Difference]: With dead ends: 1769 [2024-11-28 04:57:11,823 INFO L226 Difference]: Without dead ends: 1764 [2024-11-28 04:57:11,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 225 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:57:11,824 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 109 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:11,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1150 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1680 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 04:57:11,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2024-11-28 04:57:12,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1701. [2024-11-28 04:57:12,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1500 states have (on average 1.1246666666666667) internal successors, (1687), 1508 states have internal predecessors, (1687), 165 states have call successors, (165), 27 states have call predecessors, (165), 27 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-28 04:57:12,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2017 transitions. [2024-11-28 04:57:12,225 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2017 transitions. Word has length 235 [2024-11-28 04:57:12,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:12,226 INFO L471 AbstractCegarLoop]: Abstraction has 1701 states and 2017 transitions. [2024-11-28 04:57:12,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.916666666666666) internal successors, (238), 24 states have internal predecessors, (238), 13 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) [2024-11-28 04:57:12,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2017 transitions. [2024-11-28 04:57:12,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-28 04:57:12,228 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:12,228 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:12,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2024-11-28 04:57:12,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:12,428 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:57:12,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:12,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1613740350, now seen corresponding path program 2 times [2024-11-28 04:57:12,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:12,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997868133] [2024-11-28 04:57:12,429 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:57:12,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:12,445 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:57:12,446 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:13,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 0 proven. 219 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2024-11-28 04:57:13,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:13,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997868133] [2024-11-28 04:57:13,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997868133] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:13,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45189162] [2024-11-28 04:57:13,184 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:57:13,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:13,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:13,187 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:13,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-11-28 04:57:13,302 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:57:13,303 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:13,305 INFO L256 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:57:13,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:14,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 3 proven. 216 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2024-11-28 04:57:14,432 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:57:15,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 111 proven. 108 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2024-11-28 04:57:15,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45189162] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:57:15,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:57:15,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 12] total 26 [2024-11-28 04:57:15,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735025787] [2024-11-28 04:57:15,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:57:15,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 04:57:15,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:15,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 04:57:15,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=559, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:57:15,833 INFO L87 Difference]: Start difference. First operand 1701 states and 2017 transitions. Second operand has 27 states, 26 states have (on average 10.26923076923077) internal successors, (267), 27 states have internal predecessors, (267), 15 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 15 states have call predecessors, (44), 15 states have call successors, (44) [2024-11-28 04:57:18,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:18,695 INFO L93 Difference]: Finished difference Result 1924 states and 2285 transitions. [2024-11-28 04:57:18,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 04:57:18,696 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 10.26923076923077) internal successors, (267), 27 states have internal predecessors, (267), 15 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 15 states have call predecessors, (44), 15 states have call successors, (44) Word has length 235 [2024-11-28 04:57:18,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:18,698 INFO L225 Difference]: With dead ends: 1924 [2024-11-28 04:57:18,698 INFO L226 Difference]: Without dead ends: 1915 [2024-11-28 04:57:18,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 454 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=444, Invalid=1718, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 04:57:18,699 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 372 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:18,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 1418 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:57:18,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2024-11-28 04:57:19,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1876. [2024-11-28 04:57:19,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1876 states, 1659 states have (on average 1.1247739602169982) internal successors, (1866), 1667 states have internal predecessors, (1866), 181 states have call successors, (181), 27 states have call predecessors, (181), 27 states have return successors, (181), 181 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-28 04:57:19,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 2228 transitions. [2024-11-28 04:57:19,189 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 2228 transitions. Word has length 235 [2024-11-28 04:57:19,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:19,189 INFO L471 AbstractCegarLoop]: Abstraction has 1876 states and 2228 transitions. [2024-11-28 04:57:19,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 10.26923076923077) internal successors, (267), 27 states have internal predecessors, (267), 15 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 15 states have call predecessors, (44), 15 states have call successors, (44) [2024-11-28 04:57:19,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 2228 transitions. [2024-11-28 04:57:19,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-28 04:57:19,192 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:19,192 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:19,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2024-11-28 04:57:19,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:19,393 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:57:19,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:19,394 INFO L85 PathProgramCache]: Analyzing trace with hash 653498248, now seen corresponding path program 3 times [2024-11-28 04:57:19,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:19,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699605632] [2024-11-28 04:57:19,394 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:57:19,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:19,448 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-28 04:57:19,448 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:20,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 26 proven. 210 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-28 04:57:20,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:20,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699605632] [2024-11-28 04:57:20,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699605632] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:20,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374722211] [2024-11-28 04:57:20,168 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:57:20,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:20,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:20,170 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:20,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-11-28 04:57:20,233 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:57:20,234 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:20,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:57:20,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:21,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 103 proven. 52 refuted. 0 times theorem prover too weak. 1005 trivial. 0 not checked. [2024-11-28 04:57:21,176 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:57:21,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 1077 trivial. 0 not checked. [2024-11-28 04:57:21,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374722211] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:21,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:57:21,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16, 8] total 26 [2024-11-28 04:57:21,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84093042] [2024-11-28 04:57:21,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:57:21,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:57:21,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:21,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:57:21,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=604, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:57:21,615 INFO L87 Difference]: Start difference. First operand 1876 states and 2228 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:57:22,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:22,625 INFO L93 Difference]: Finished difference Result 1879 states and 2230 transitions. [2024-11-28 04:57:22,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:57:22,626 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 239 [2024-11-28 04:57:22,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:22,628 INFO L225 Difference]: With dead ends: 1879 [2024-11-28 04:57:22,628 INFO L226 Difference]: Without dead ends: 1874 [2024-11-28 04:57:22,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 468 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:57:22,629 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 67 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:22,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 126 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:57:22,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2024-11-28 04:57:23,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1874. [2024-11-28 04:57:23,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1874 states, 1657 states have (on average 1.1110440555220278) internal successors, (1841), 1665 states have internal predecessors, (1841), 181 states have call successors, (181), 27 states have call predecessors, (181), 27 states have return successors, (181), 181 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-28 04:57:23,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 2203 transitions. [2024-11-28 04:57:23,097 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 2203 transitions. Word has length 239 [2024-11-28 04:57:23,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:23,098 INFO L471 AbstractCegarLoop]: Abstraction has 1874 states and 2203 transitions. [2024-11-28 04:57:23,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:57:23,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 2203 transitions. [2024-11-28 04:57:23,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2024-11-28 04:57:23,100 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:23,100 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:23,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2024-11-28 04:57:23,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:23,301 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:57:23,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:23,301 INFO L85 PathProgramCache]: Analyzing trace with hash -44451615, now seen corresponding path program 2 times [2024-11-28 04:57:23,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:23,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408758252] [2024-11-28 04:57:23,302 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:57:23,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:23,326 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:57:23,327 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:24,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1360 backedges. 0 proven. 256 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-28 04:57:24,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:24,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408758252] [2024-11-28 04:57:24,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408758252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:24,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758711906] [2024-11-28 04:57:24,775 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:57:24,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:24,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:24,777 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:24,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-11-28 04:57:24,920 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:57:24,921 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:24,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:57:24,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:25,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1360 backedges. 0 proven. 1276 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:57:25,639 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:57:27,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1360 backedges. 0 proven. 256 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-28 04:57:27,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758711906] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:57:27,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:57:27,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 21, 22] total 47 [2024-11-28 04:57:27,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870952269] [2024-11-28 04:57:27,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:57:27,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-11-28 04:57:27,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:27,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-11-28 04:57:27,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=479, Invalid=1683, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 04:57:27,147 INFO L87 Difference]: Start difference. First operand 1874 states and 2203 transitions. Second operand has 47 states, 47 states have (on average 5.9787234042553195) internal successors, (281), 47 states have internal predecessors, (281), 18 states have call successors, (72), 10 states have call predecessors, (72), 10 states have return successors, (72), 18 states have call predecessors, (72), 18 states have call successors, (72) [2024-11-28 04:57:30,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:30,612 INFO L93 Difference]: Finished difference Result 3247 states and 3838 transitions. [2024-11-28 04:57:30,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-11-28 04:57:30,613 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 5.9787234042553195) internal successors, (281), 47 states have internal predecessors, (281), 18 states have call successors, (72), 10 states have call predecessors, (72), 10 states have return successors, (72), 18 states have call predecessors, (72), 18 states have call successors, (72) Word has length 241 [2024-11-28 04:57:30,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:30,616 INFO L225 Difference]: With dead ends: 3247 [2024-11-28 04:57:30,616 INFO L226 Difference]: Without dead ends: 2942 [2024-11-28 04:57:30,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2402 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1801, Invalid=6571, Unknown=0, NotChecked=0, Total=8372 [2024-11-28 04:57:30,618 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 387 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:30,618 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 941 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:57:30,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2024-11-28 04:57:31,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 2900. [2024-11-28 04:57:31,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2900 states, 2587 states have (on average 1.0923850019327406) internal successors, (2826), 2596 states have internal predecessors, (2826), 265 states have call successors, (265), 39 states have call predecessors, (265), 39 states have return successors, (265), 264 states have call predecessors, (265), 265 states have call successors, (265) [2024-11-28 04:57:31,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2900 states to 2900 states and 3356 transitions. [2024-11-28 04:57:31,422 INFO L78 Accepts]: Start accepts. Automaton has 2900 states and 3356 transitions. Word has length 241 [2024-11-28 04:57:31,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:31,422 INFO L471 AbstractCegarLoop]: Abstraction has 2900 states and 3356 transitions. [2024-11-28 04:57:31,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 5.9787234042553195) internal successors, (281), 47 states have internal predecessors, (281), 18 states have call successors, (72), 10 states have call predecessors, (72), 10 states have return successors, (72), 18 states have call predecessors, (72), 18 states have call successors, (72) [2024-11-28 04:57:31,423 INFO L276 IsEmpty]: Start isEmpty. Operand 2900 states and 3356 transitions. [2024-11-28 04:57:31,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-28 04:57:31,426 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:31,426 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2024-11-28 04:57:31,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2024-11-28 04:57:31,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2024-11-28 04:57:31,627 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:57:31,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:31,628 INFO L85 PathProgramCache]: Analyzing trace with hash -780660363, now seen corresponding path program 8 times [2024-11-28 04:57:31,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:31,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911469635] [2024-11-28 04:57:31,628 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:57:31,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:31,669 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:57:31,669 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:57:31,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [436921921] [2024-11-28 04:57:31,671 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:57:31,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:31,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:31,673 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:31,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-11-28 04:57:31,796 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:57:31,797 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:31,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-28 04:57:31,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:35,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-28 04:57:35,331 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:57:36,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:36,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911469635] [2024-11-28 04:57:36,781 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:57:36,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436921921] [2024-11-28 04:57:36,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436921921] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:36,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:57:36,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2024-11-28 04:57:36,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792295130] [2024-11-28 04:57:36,782 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:57:36,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 04:57:36,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:36,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 04:57:36,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=802, Unknown=0, NotChecked=0, Total=930 [2024-11-28 04:57:36,783 INFO L87 Difference]: Start difference. First operand 2900 states and 3356 transitions. Second operand has 26 states, 25 states have (on average 5.4) internal successors, (135), 26 states have internal predecessors, (135), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-28 04:57:42,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:42,375 INFO L93 Difference]: Finished difference Result 3130 states and 3622 transitions. [2024-11-28 04:57:42,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 04:57:42,376 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 5.4) internal successors, (135), 26 states have internal predecessors, (135), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) Word has length 252 [2024-11-28 04:57:42,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:42,381 INFO L225 Difference]: With dead ends: 3130 [2024-11-28 04:57:42,381 INFO L226 Difference]: Without dead ends: 3129 [2024-11-28 04:57:42,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=162, Invalid=960, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 04:57:42,382 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 95 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 3367 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 3379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:42,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1749 Invalid, 3379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3367 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-28 04:57:42,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3129 states. [2024-11-28 04:57:43,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3129 to 2900. [2024-11-28 04:57:43,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2900 states, 2587 states have (on average 1.091998453807499) internal successors, (2825), 2596 states have internal predecessors, (2825), 265 states have call successors, (265), 39 states have call predecessors, (265), 39 states have return successors, (265), 264 states have call predecessors, (265), 265 states have call successors, (265) [2024-11-28 04:57:43,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2900 states to 2900 states and 3355 transitions. [2024-11-28 04:57:43,266 INFO L78 Accepts]: Start accepts. Automaton has 2900 states and 3355 transitions. Word has length 252 [2024-11-28 04:57:43,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:43,266 INFO L471 AbstractCegarLoop]: Abstraction has 2900 states and 3355 transitions. [2024-11-28 04:57:43,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 5.4) internal successors, (135), 26 states have internal predecessors, (135), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-28 04:57:43,267 INFO L276 IsEmpty]: Start isEmpty. Operand 2900 states and 3355 transitions. [2024-11-28 04:57:43,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-28 04:57:43,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:43,270 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-28 04:57:43,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2024-11-28 04:57:43,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2024-11-28 04:57:43,474 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:57:43,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:43,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1954547668, now seen corresponding path program 4 times [2024-11-28 04:57:43,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:43,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243477234] [2024-11-28 04:57:43,475 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:57:43,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:43,525 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:57:43,526 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:44,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-28 04:57:44,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:44,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243477234] [2024-11-28 04:57:44,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243477234] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:44,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238833210] [2024-11-28 04:57:44,922 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:57:44,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:44,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:44,927 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:44,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-11-28 04:57:45,100 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:57:45,101 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:45,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-28 04:57:45,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:51,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 168 proven. 288 refuted. 0 times theorem prover too weak. 832 trivial. 0 not checked. [2024-11-28 04:57:51,174 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:57:52,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238833210] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:52,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:57:52,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 25] total 38 [2024-11-28 04:57:52,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064313809] [2024-11-28 04:57:52,939 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:57:52,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-28 04:57:52,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:52,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-28 04:57:52,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1671, Unknown=0, NotChecked=0, Total=1806 [2024-11-28 04:57:52,940 INFO L87 Difference]: Start difference. First operand 2900 states and 3355 transitions. Second operand has 39 states, 38 states have (on average 7.342105263157895) internal successors, (279), 39 states have internal predecessors, (279), 17 states have call successors, (46), 1 states have call predecessors, (46), 2 states have return successors, (46), 18 states have call predecessors, (46), 17 states have call successors, (46) [2024-11-28 04:58:05,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:05,616 INFO L93 Difference]: Finished difference Result 3391 states and 3921 transitions. [2024-11-28 04:58:05,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-28 04:58:05,616 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 7.342105263157895) internal successors, (279), 39 states have internal predecessors, (279), 17 states have call successors, (46), 1 states have call predecessors, (46), 2 states have return successors, (46), 18 states have call predecessors, (46), 17 states have call successors, (46) Word has length 252 [2024-11-28 04:58:05,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:05,620 INFO L225 Difference]: With dead ends: 3391 [2024-11-28 04:58:05,620 INFO L226 Difference]: Without dead ends: 3390 [2024-11-28 04:58:05,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 245 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1906 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=546, Invalid=6764, Unknown=0, NotChecked=0, Total=7310 [2024-11-28 04:58:05,621 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 546 mSDsluCounter, 2817 mSDsCounter, 0 mSdLazyCounter, 5589 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 2960 SdHoareTripleChecker+Invalid, 5699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 5589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:05,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 2960 Invalid, 5699 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [110 Valid, 5589 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2024-11-28 04:58:05,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2024-11-28 04:58:06,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 2952. [2024-11-28 04:58:06,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2952 states, 2635 states have (on average 1.0910815939278937) internal successors, (2875), 2644 states have internal predecessors, (2875), 269 states have call successors, (269), 39 states have call predecessors, (269), 39 states have return successors, (269), 268 states have call predecessors, (269), 269 states have call successors, (269) [2024-11-28 04:58:06,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2952 states to 2952 states and 3413 transitions. [2024-11-28 04:58:06,445 INFO L78 Accepts]: Start accepts. Automaton has 2952 states and 3413 transitions. Word has length 252 [2024-11-28 04:58:06,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:06,445 INFO L471 AbstractCegarLoop]: Abstraction has 2952 states and 3413 transitions. [2024-11-28 04:58:06,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 7.342105263157895) internal successors, (279), 39 states have internal predecessors, (279), 17 states have call successors, (46), 1 states have call predecessors, (46), 2 states have return successors, (46), 18 states have call predecessors, (46), 17 states have call successors, (46) [2024-11-28 04:58:06,445 INFO L276 IsEmpty]: Start isEmpty. Operand 2952 states and 3413 transitions. [2024-11-28 04:58:06,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-11-28 04:58:06,448 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:06,448 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2024-11-28 04:58:06,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2024-11-28 04:58:06,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2024-11-28 04:58:06,653 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:58:06,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:06,654 INFO L85 PathProgramCache]: Analyzing trace with hash 2129226958, now seen corresponding path program 9 times [2024-11-28 04:58:06,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:06,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787625870] [2024-11-28 04:58:06,654 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:58:06,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:06,726 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-28 04:58:06,726 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:58:08,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-28 04:58:08,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:08,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787625870] [2024-11-28 04:58:08,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787625870] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:58:08,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432264825] [2024-11-28 04:58:08,451 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:58:08,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:08,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:58:08,454 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:58:08,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-11-28 04:58:08,530 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:58:08,531 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:58:08,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:58:08,535 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:58:09,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2024-11-28 04:58:09,687 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:58:09,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432264825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:09,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:58:09,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [19] total 27 [2024-11-28 04:58:09,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848265220] [2024-11-28 04:58:09,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:09,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:58:09,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:09,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:58:09,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:58:09,689 INFO L87 Difference]: Start difference. First operand 2952 states and 3413 transitions. Second operand has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:58:11,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:11,041 INFO L93 Difference]: Finished difference Result 2971 states and 3433 transitions. [2024-11-28 04:58:11,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:58:11,042 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 256 [2024-11-28 04:58:11,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:11,045 INFO L225 Difference]: With dead ends: 2971 [2024-11-28 04:58:11,045 INFO L226 Difference]: Without dead ends: 2970 [2024-11-28 04:58:11,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 248 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=102, Invalid=828, Unknown=0, NotChecked=0, Total=930 [2024-11-28 04:58:11,046 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 130 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:11,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 113 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:58:11,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2024-11-28 04:58:11,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 2463. [2024-11-28 04:58:11,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2463 states, 2177 states have (on average 1.0854386770785485) internal successors, (2363), 2185 states have internal predecessors, (2363), 239 states have call successors, (239), 39 states have call predecessors, (239), 39 states have return successors, (239), 238 states have call predecessors, (239), 239 states have call successors, (239) [2024-11-28 04:58:11,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 2841 transitions. [2024-11-28 04:58:11,722 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 2841 transitions. Word has length 256 [2024-11-28 04:58:11,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:11,722 INFO L471 AbstractCegarLoop]: Abstraction has 2463 states and 2841 transitions. [2024-11-28 04:58:11,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:58:11,722 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 2841 transitions. [2024-11-28 04:58:11,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-28 04:58:11,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:11,725 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-28 04:58:11,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2024-11-28 04:58:11,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2024-11-28 04:58:11,926 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:58:11,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:11,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1984477624, now seen corresponding path program 2 times [2024-11-28 04:58:11,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:11,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669136837] [2024-11-28 04:58:11,928 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:58:11,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:11,957 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:58:11,957 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:58:12,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 50 proven. 120 refuted. 0 times theorem prover too weak. 1440 trivial. 0 not checked. [2024-11-28 04:58:12,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:12,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669136837] [2024-11-28 04:58:12,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669136837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:58:12,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226487736] [2024-11-28 04:58:12,672 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:58:12,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:12,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:58:12,674 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:58:12,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-11-28 04:58:12,780 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:58:12,780 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:58:12,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-28 04:58:12,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:58:16,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-28 04:58:16,698 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:59:12,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226487736] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:12,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:59:12,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 28] total 40 [2024-11-28 04:59:12,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209414047] [2024-11-28 04:59:12,510 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:59:12,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-28 04:59:12,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:12,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-28 04:59:12,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=956, Invalid=2583, Unknown=1, NotChecked=0, Total=3540 [2024-11-28 04:59:12,511 INFO L87 Difference]: Start difference. First operand 2463 states and 2841 transitions. Second operand has 41 states, 40 states have (on average 5.975) internal successors, (239), 41 states have internal predecessors, (239), 15 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 15 states have call predecessors, (40), 15 states have call successors, (40) [2024-11-28 04:59:20,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:20,565 INFO L93 Difference]: Finished difference Result 3235 states and 3732 transitions. [2024-11-28 04:59:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-28 04:59:20,566 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 5.975) internal successors, (239), 41 states have internal predecessors, (239), 15 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 15 states have call predecessors, (40), 15 states have call successors, (40) Word has length 270 [2024-11-28 04:59:20,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:20,569 INFO L225 Difference]: With dead ends: 3235 [2024-11-28 04:59:20,569 INFO L226 Difference]: Without dead ends: 3234 [2024-11-28 04:59:20,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2168 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=1857, Invalid=4784, Unknown=1, NotChecked=0, Total=6642 [2024-11-28 04:59:20,571 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 424 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 4815 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 2149 SdHoareTripleChecker+Invalid, 4877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 4815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:20,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 2149 Invalid, 4877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 4815 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-28 04:59:20,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3234 states. [2024-11-28 04:59:21,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3234 to 2551. [2024-11-28 04:59:21,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2551 states, 2255 states have (on average 1.0824833702882484) internal successors, (2441), 2264 states have internal predecessors, (2441), 249 states have call successors, (249), 39 states have call predecessors, (249), 39 states have return successors, (249), 247 states have call predecessors, (249), 249 states have call successors, (249) [2024-11-28 04:59:21,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2551 states to 2551 states and 2939 transitions. [2024-11-28 04:59:21,344 INFO L78 Accepts]: Start accepts. Automaton has 2551 states and 2939 transitions. Word has length 270 [2024-11-28 04:59:21,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:21,345 INFO L471 AbstractCegarLoop]: Abstraction has 2551 states and 2939 transitions. [2024-11-28 04:59:21,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 5.975) internal successors, (239), 41 states have internal predecessors, (239), 15 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 15 states have call predecessors, (40), 15 states have call successors, (40) [2024-11-28 04:59:21,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2551 states and 2939 transitions. [2024-11-28 04:59:21,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-28 04:59:21,347 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:21,347 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 1, 1, 1] [2024-11-28 04:59:21,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2024-11-28 04:59:21,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:21,548 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:59:21,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:21,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1583450463, now seen corresponding path program 3 times [2024-11-28 04:59:21,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:21,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401814279] [2024-11-28 04:59:21,548 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:59:21,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:21,581 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-28 04:59:21,581 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:59:21,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:59:21,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:21,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401814279] [2024-11-28 04:59:21,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401814279] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:21,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693568163] [2024-11-28 04:59:21,918 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:59:21,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:21,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:21,920 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:21,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-11-28 04:59:22,070 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-28 04:59:22,071 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:59:22,073 INFO L256 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:59:22,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:22,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:59:22,481 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:59:23,400 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-28 04:59:23,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693568163] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:59:23,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:59:23,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2024-11-28 04:59:23,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678378146] [2024-11-28 04:59:23,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:59:23,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-28 04:59:23,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:23,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-28 04:59:23,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:59:23,403 INFO L87 Difference]: Start difference. First operand 2551 states and 2939 transitions. Second operand has 25 states, 24 states have (on average 10.583333333333334) internal successors, (254), 25 states have internal predecessors, (254), 23 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 23 states have call predecessors, (69), 23 states have call successors, (69) [2024-11-28 04:59:26,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:26,005 INFO L93 Difference]: Finished difference Result 5025 states and 5943 transitions. [2024-11-28 04:59:26,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 04:59:26,005 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 10.583333333333334) internal successors, (254), 25 states have internal predecessors, (254), 23 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 23 states have call predecessors, (69), 23 states have call successors, (69) Word has length 286 [2024-11-28 04:59:26,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:26,012 INFO L225 Difference]: With dead ends: 5025 [2024-11-28 04:59:26,012 INFO L226 Difference]: Without dead ends: 5023 [2024-11-28 04:59:26,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:59:26,013 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 1237 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:26,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1281 Valid, 810 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:59:26,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5023 states. [2024-11-28 04:59:26,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5023 to 2597. [2024-11-28 04:59:26,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2597 states, 2291 states have (on average 1.0829332169358359) internal successors, (2481), 2300 states have internal predecessors, (2481), 261 states have call successors, (261), 37 states have call predecessors, (261), 37 states have return successors, (261), 259 states have call predecessors, (261), 261 states have call successors, (261) [2024-11-28 04:59:26,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2597 states to 2597 states and 3003 transitions. [2024-11-28 04:59:26,819 INFO L78 Accepts]: Start accepts. Automaton has 2597 states and 3003 transitions. Word has length 286 [2024-11-28 04:59:26,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:26,819 INFO L471 AbstractCegarLoop]: Abstraction has 2597 states and 3003 transitions. [2024-11-28 04:59:26,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 10.583333333333334) internal successors, (254), 25 states have internal predecessors, (254), 23 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 23 states have call predecessors, (69), 23 states have call successors, (69) [2024-11-28 04:59:26,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2597 states and 3003 transitions. [2024-11-28 04:59:26,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-28 04:59:26,823 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:26,823 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-28 04:59:26,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2024-11-28 04:59:27,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-11-28 04:59:27,028 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:59:27,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:27,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1333679814, now seen corresponding path program 3 times [2024-11-28 04:59:27,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:27,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458710001] [2024-11-28 04:59:27,029 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:59:27,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:27,102 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2024-11-28 04:59:27,102 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:59:28,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1486 backedges. 132 proven. 246 refuted. 0 times theorem prover too weak. 1108 trivial. 0 not checked. [2024-11-28 04:59:28,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:28,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458710001] [2024-11-28 04:59:28,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458710001] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:28,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991767666] [2024-11-28 04:59:28,184 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:59:28,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:28,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:28,186 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:28,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-11-28 04:59:28,252 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:59:28,252 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:59:28,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:59:28,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:29,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1486 backedges. 99 proven. 46 refuted. 0 times theorem prover too weak. 1341 trivial. 0 not checked. [2024-11-28 04:59:29,260 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:59:40,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991767666] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:40,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:59:40,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 10] total 28 [2024-11-28 04:59:40,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177030715] [2024-11-28 04:59:40,606 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:59:40,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 04:59:40,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:40,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 04:59:40,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=954, Unknown=1, NotChecked=0, Total=1056 [2024-11-28 04:59:40,607 INFO L87 Difference]: Start difference. First operand 2597 states and 3003 transitions. Second operand has 28 states, 28 states have (on average 7.5) internal successors, (210), 28 states have internal predecessors, (210), 12 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 13 states have call predecessors, (31), 12 states have call successors, (31) [2024-11-28 04:59:50,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:50,433 INFO L93 Difference]: Finished difference Result 3083 states and 3556 transitions. [2024-11-28 04:59:50,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2024-11-28 04:59:50,434 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 7.5) internal successors, (210), 28 states have internal predecessors, (210), 12 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 13 states have call predecessors, (31), 12 states have call successors, (31) Word has length 278 [2024-11-28 04:59:50,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:50,437 INFO L225 Difference]: With dead ends: 3083 [2024-11-28 04:59:50,437 INFO L226 Difference]: Without dead ends: 2638 [2024-11-28 04:59:50,439 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3891 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=2088, Invalid=11483, Unknown=1, NotChecked=0, Total=13572 [2024-11-28 04:59:50,439 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 798 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 1999 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 2176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:50,439 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 823 Invalid, 2176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1999 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-28 04:59:50,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2638 states. [2024-11-28 04:59:50,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2638 to 1414. [2024-11-28 04:59:50,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 1215 states have (on average 1.0740740740740742) internal successors, (1305), 1222 states have internal predecessors, (1305), 155 states have call successors, (155), 37 states have call predecessors, (155), 37 states have return successors, (155), 154 states have call predecessors, (155), 155 states have call successors, (155) [2024-11-28 04:59:50,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 1615 transitions. [2024-11-28 04:59:50,916 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 1615 transitions. Word has length 278 [2024-11-28 04:59:50,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:50,916 INFO L471 AbstractCegarLoop]: Abstraction has 1414 states and 1615 transitions. [2024-11-28 04:59:50,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.5) internal successors, (210), 28 states have internal predecessors, (210), 12 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 13 states have call predecessors, (31), 12 states have call successors, (31) [2024-11-28 04:59:50,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 1615 transitions. [2024-11-28 04:59:50,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-28 04:59:50,919 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:50,919 INFO L218 NwaCegarLoop]: trace histogram [29, 29, 29, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:50,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2024-11-28 04:59:51,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:51,120 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 04:59:51,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:51,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1808630888, now seen corresponding path program 3 times [2024-11-28 04:59:51,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:51,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859543012] [2024-11-28 04:59:51,121 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:59:51,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:51,195 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-28 04:59:51,195 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:59:52,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2018 backedges. 0 proven. 394 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-11-28 04:59:52,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:52,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859543012] [2024-11-28 04:59:52,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859543012] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:52,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528455695] [2024-11-28 04:59:52,848 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:59:52,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:52,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:52,849 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:52,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2024-11-28 04:59:53,206 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-28 04:59:53,206 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:59:53,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-28 04:59:53,212 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:01,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2018 backedges. 399 proven. 219 refuted. 0 times theorem prover too weak. 1400 trivial. 0 not checked. [2024-11-28 05:00:01,290 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:00:01,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528455695] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:00:01,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:00:01,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 29] total 60 [2024-11-28 05:00:01,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391188873] [2024-11-28 05:00:01,873 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:00:01,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-28 05:00:01,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:01,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-28 05:00:01,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=381, Invalid=3525, Unknown=0, NotChecked=0, Total=3906 [2024-11-28 05:00:01,875 INFO L87 Difference]: Start difference. First operand 1414 states and 1615 transitions. Second operand has 60 states, 60 states have (on average 4.933333333333334) internal successors, (296), 58 states have internal predecessors, (296), 21 states have call successors, (55), 1 states have call predecessors, (55), 2 states have return successors, (55), 22 states have call predecessors, (55), 21 states have call successors, (55) [2024-11-28 05:00:24,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:24,072 INFO L93 Difference]: Finished difference Result 1892 states and 2170 transitions. [2024-11-28 05:00:24,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2024-11-28 05:00:24,073 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 4.933333333333334) internal successors, (296), 58 states have internal predecessors, (296), 21 states have call successors, (55), 1 states have call predecessors, (55), 2 states have return successors, (55), 22 states have call predecessors, (55), 21 states have call successors, (55) Word has length 293 [2024-11-28 05:00:24,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:24,075 INFO L225 Difference]: With dead ends: 1892 [2024-11-28 05:00:24,076 INFO L226 Difference]: Without dead ends: 1885 [2024-11-28 05:00:24,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10457 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=2668, Invalid=29194, Unknown=0, NotChecked=0, Total=31862 [2024-11-28 05:00:24,080 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 417 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 7151 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1480 SdHoareTripleChecker+Invalid, 7262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 7151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:24,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 1480 Invalid, 7262 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [111 Valid, 7151 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2024-11-28 05:00:24,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1885 states. [2024-11-28 05:00:24,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1885 to 1829. [2024-11-28 05:00:24,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1586 states have (on average 1.0775535939470366) internal successors, (1709), 1593 states have internal predecessors, (1709), 195 states have call successors, (195), 41 states have call predecessors, (195), 41 states have return successors, (195), 194 states have call predecessors, (195), 195 states have call successors, (195) [2024-11-28 05:00:24,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2099 transitions. [2024-11-28 05:00:24,750 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2099 transitions. Word has length 293 [2024-11-28 05:00:24,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:24,750 INFO L471 AbstractCegarLoop]: Abstraction has 1829 states and 2099 transitions. [2024-11-28 05:00:24,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 4.933333333333334) internal successors, (296), 58 states have internal predecessors, (296), 21 states have call successors, (55), 1 states have call predecessors, (55), 2 states have return successors, (55), 22 states have call predecessors, (55), 21 states have call successors, (55) [2024-11-28 05:00:24,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2099 transitions. [2024-11-28 05:00:24,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2024-11-28 05:00:24,754 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:24,754 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:24,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2024-11-28 05:00:24,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:24,955 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 05:00:24,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:24,955 INFO L85 PathProgramCache]: Analyzing trace with hash -767672361, now seen corresponding path program 1 times [2024-11-28 05:00:24,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:24,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843244278] [2024-11-28 05:00:24,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:24,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:26,330 INFO L134 CoverageAnalysis]: Checked inductivity of 2472 backedges. 0 proven. 488 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-11-28 05:00:26,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:26,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843244278] [2024-11-28 05:00:26,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843244278] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:00:26,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341821347] [2024-11-28 05:00:26,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:26,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:26,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:26,332 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:26,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-11-28 05:00:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:26,441 INFO L256 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-28 05:00:26,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:27,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2472 backedges. 0 proven. 2360 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 05:00:27,202 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:00:29,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2472 backedges. 0 proven. 488 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-11-28 05:00:29,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341821347] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:00:29,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:00:29,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 27, 28] total 57 [2024-11-28 05:00:29,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149477737] [2024-11-28 05:00:29,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:00:29,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-11-28 05:00:29,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:29,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-11-28 05:00:29,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=685, Invalid=2507, Unknown=0, NotChecked=0, Total=3192 [2024-11-28 05:00:29,059 INFO L87 Difference]: Start difference. First operand 1829 states and 2099 transitions. Second operand has 57 states, 57 states have (on average 6.368421052631579) internal successors, (363), 57 states have internal predecessors, (363), 24 states have call successors, (96), 13 states have call predecessors, (96), 13 states have return successors, (96), 24 states have call predecessors, (96), 24 states have call successors, (96) [2024-11-28 05:00:33,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:33,978 INFO L93 Difference]: Finished difference Result 2741 states and 3144 transitions. [2024-11-28 05:00:33,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2024-11-28 05:00:33,979 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 6.368421052631579) internal successors, (363), 57 states have internal predecessors, (363), 24 states have call successors, (96), 13 states have call predecessors, (96), 13 states have return successors, (96), 24 states have call predecessors, (96), 24 states have call successors, (96) Word has length 320 [2024-11-28 05:00:33,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:33,981 INFO L225 Difference]: With dead ends: 2741 [2024-11-28 05:00:33,981 INFO L226 Difference]: Without dead ends: 2495 [2024-11-28 05:00:33,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 729 GetRequests, 612 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3856 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=3031, Invalid=11011, Unknown=0, NotChecked=0, Total=14042 [2024-11-28 05:00:33,983 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 539 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:33,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 1038 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:00:33,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2495 states. [2024-11-28 05:00:34,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2495 to 2201. [2024-11-28 05:00:34,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2201 states, 1912 states have (on average 1.0685146443514644) internal successors, (2043), 1921 states have internal predecessors, (2043), 231 states have call successors, (231), 51 states have call predecessors, (231), 51 states have return successors, (231), 228 states have call predecessors, (231), 231 states have call successors, (231) [2024-11-28 05:00:34,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 2505 transitions. [2024-11-28 05:00:34,871 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 2505 transitions. Word has length 320 [2024-11-28 05:00:34,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:34,871 INFO L471 AbstractCegarLoop]: Abstraction has 2201 states and 2505 transitions. [2024-11-28 05:00:34,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 6.368421052631579) internal successors, (363), 57 states have internal predecessors, (363), 24 states have call successors, (96), 13 states have call predecessors, (96), 13 states have return successors, (96), 24 states have call predecessors, (96), 24 states have call successors, (96) [2024-11-28 05:00:34,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 2505 transitions. [2024-11-28 05:00:34,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-11-28 05:00:34,874 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:34,874 INFO L218 NwaCegarLoop]: trace histogram [37, 37, 37, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:34,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2024-11-28 05:00:35,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:35,074 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 05:00:35,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:35,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1463938800, now seen corresponding path program 2 times [2024-11-28 05:00:35,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:35,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438392348] [2024-11-28 05:00:35,075 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:00:35,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:35,096 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:00:35,096 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:00:36,778 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2024-11-28 05:00:36,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:36,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438392348] [2024-11-28 05:00:36,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438392348] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:00:36,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948198953] [2024-11-28 05:00:36,778 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:00:36,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:36,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:36,780 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:36,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-11-28 05:00:36,927 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:00:36,927 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:00:36,929 INFO L256 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-28 05:00:36,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:37,883 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 3208 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 05:00:37,883 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:00:40,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3336 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2024-11-28 05:00:40,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948198953] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:00:40,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:00:40,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 31, 32] total 67 [2024-11-28 05:00:40,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531989135] [2024-11-28 05:00:40,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:00:40,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-11-28 05:00:40,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:40,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-11-28 05:00:40,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=938, Invalid=3484, Unknown=0, NotChecked=0, Total=4422 [2024-11-28 05:00:40,551 INFO L87 Difference]: Start difference. First operand 2201 states and 2505 transitions. Second operand has 67 states, 67 states have (on average 6.373134328358209) internal successors, (427), 67 states have internal predecessors, (427), 28 states have call successors, (111), 15 states have call predecessors, (111), 15 states have return successors, (111), 28 states have call predecessors, (111), 28 states have call successors, (111) [2024-11-28 05:00:46,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:46,484 INFO L93 Difference]: Finished difference Result 3241 states and 3701 transitions. [2024-11-28 05:00:46,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2024-11-28 05:00:46,485 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 6.373134328358209) internal successors, (427), 67 states have internal predecessors, (427), 28 states have call successors, (111), 15 states have call predecessors, (111), 15 states have return successors, (111), 28 states have call predecessors, (111), 28 states have call successors, (111) Word has length 372 [2024-11-28 05:00:46,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:46,488 INFO L225 Difference]: With dead ends: 3241 [2024-11-28 05:00:46,488 INFO L226 Difference]: Without dead ends: 2995 [2024-11-28 05:00:46,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 848 GetRequests, 712 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5550 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=4011, Invalid=14895, Unknown=0, NotChecked=0, Total=18906 [2024-11-28 05:00:46,490 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 627 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:46,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 919 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:00:46,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2024-11-28 05:00:47,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 2777. [2024-11-28 05:00:47,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2777 states, 2418 states have (on average 1.0612076095947063) internal successors, (2566), 2431 states have internal predecessors, (2566), 287 states have call successors, (287), 65 states have call predecessors, (287), 65 states have return successors, (287), 280 states have call predecessors, (287), 287 states have call successors, (287) [2024-11-28 05:00:47,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2777 states to 2777 states and 3140 transitions. [2024-11-28 05:00:47,709 INFO L78 Accepts]: Start accepts. Automaton has 2777 states and 3140 transitions. Word has length 372 [2024-11-28 05:00:47,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:47,710 INFO L471 AbstractCegarLoop]: Abstraction has 2777 states and 3140 transitions. [2024-11-28 05:00:47,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 6.373134328358209) internal successors, (427), 67 states have internal predecessors, (427), 28 states have call successors, (111), 15 states have call predecessors, (111), 15 states have return successors, (111), 28 states have call predecessors, (111), 28 states have call successors, (111) [2024-11-28 05:00:47,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2777 states and 3140 transitions. [2024-11-28 05:00:47,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-11-28 05:00:47,713 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:47,714 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:47,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2024-11-28 05:00:47,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2024-11-28 05:00:47,914 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 05:00:47,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:47,915 INFO L85 PathProgramCache]: Analyzing trace with hash 108449674, now seen corresponding path program 2 times [2024-11-28 05:00:47,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:47,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325023548] [2024-11-28 05:00:47,915 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:00:47,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:47,958 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:00:47,958 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:00:48,134 INFO L134 CoverageAnalysis]: Checked inductivity of 4326 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 4233 trivial. 0 not checked. [2024-11-28 05:00:48,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:48,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325023548] [2024-11-28 05:00:48,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325023548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:48,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:48,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:00:48,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755397120] [2024-11-28 05:00:48,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:48,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:00:48,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:48,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:00:48,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:00:48,135 INFO L87 Difference]: Start difference. First operand 2777 states and 3140 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 05:00:49,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:49,427 INFO L93 Difference]: Finished difference Result 2777 states and 3140 transitions. [2024-11-28 05:00:49,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:00:49,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 421 [2024-11-28 05:00:49,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:49,431 INFO L225 Difference]: With dead ends: 2777 [2024-11-28 05:00:49,431 INFO L226 Difference]: Without dead ends: 2776 [2024-11-28 05:00:49,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:00:49,432 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 17 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:49,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 192 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:00:49,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2776 states. [2024-11-28 05:00:50,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2776 to 2732. [2024-11-28 05:00:50,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2732 states, 2374 states have (on average 1.056866048862679) internal successors, (2509), 2390 states have internal predecessors, (2509), 287 states have call successors, (287), 65 states have call predecessors, (287), 65 states have return successors, (287), 276 states have call predecessors, (287), 287 states have call successors, (287) [2024-11-28 05:00:50,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2732 states to 2732 states and 3083 transitions. [2024-11-28 05:00:50,640 INFO L78 Accepts]: Start accepts. Automaton has 2732 states and 3083 transitions. Word has length 421 [2024-11-28 05:00:50,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:50,640 INFO L471 AbstractCegarLoop]: Abstraction has 2732 states and 3083 transitions. [2024-11-28 05:00:50,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 05:00:50,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2732 states and 3083 transitions. [2024-11-28 05:00:50,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2024-11-28 05:00:50,644 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:50,644 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:50,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2024-11-28 05:00:50,644 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 05:00:50,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:50,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1008913481, now seen corresponding path program 3 times [2024-11-28 05:00:50,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:50,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845801074] [2024-11-28 05:00:50,645 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:00:50,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:50,773 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2024-11-28 05:00:50,773 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:00:53,931 INFO L134 CoverageAnalysis]: Checked inductivity of 4332 backedges. 0 proven. 888 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-28 05:00:53,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:53,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845801074] [2024-11-28 05:00:53,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845801074] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:00:53,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119593728] [2024-11-28 05:00:53,931 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:00:53,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:53,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:53,934 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:53,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-11-28 05:00:54,349 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2024-11-28 05:00:54,349 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:00:54,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 05:00:54,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:56,275 INFO L134 CoverageAnalysis]: Checked inductivity of 4332 backedges. 0 proven. 4188 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 05:00:56,275 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:00:59,482 INFO L134 CoverageAnalysis]: Checked inductivity of 4332 backedges. 0 proven. 888 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-28 05:00:59,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119593728] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:00:59,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:00:59,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 35, 36] total 93 [2024-11-28 05:00:59,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272522515] [2024-11-28 05:00:59,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:00:59,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2024-11-28 05:00:59,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:59,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2024-11-28 05:00:59,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1641, Invalid=6915, Unknown=0, NotChecked=0, Total=8556 [2024-11-28 05:00:59,485 INFO L87 Difference]: Start difference. First operand 2732 states and 3083 transitions. Second operand has 93 states, 93 states have (on average 6.053763440860215) internal successors, (563), 93 states have internal predecessors, (563), 36 states have call successors, (124), 17 states have call predecessors, (124), 17 states have return successors, (124), 36 states have call predecessors, (124), 36 states have call successors, (124) [2024-11-28 05:01:08,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:01:08,011 INFO L93 Difference]: Finished difference Result 3844 states and 4340 transitions. [2024-11-28 05:01:08,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2024-11-28 05:01:08,012 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 93 states have (on average 6.053763440860215) internal successors, (563), 93 states have internal predecessors, (563), 36 states have call successors, (124), 17 states have call predecessors, (124), 17 states have return successors, (124), 36 states have call predecessors, (124), 36 states have call successors, (124) Word has length 424 [2024-11-28 05:01:08,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:01:08,016 INFO L225 Difference]: With dead ends: 3844 [2024-11-28 05:01:08,016 INFO L226 Difference]: Without dead ends: 3621 [2024-11-28 05:01:08,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 971 GetRequests, 801 SyntacticMatches, 2 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9300 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=5722, Invalid=23008, Unknown=0, NotChecked=0, Total=28730 [2024-11-28 05:01:08,019 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 897 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:01:08,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 1317 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 05:01:08,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3621 states. [2024-11-28 05:01:09,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3621 to 3376. [2024-11-28 05:01:09,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3376 states, 2943 states have (on average 1.053007135575943) internal successors, (3099), 2961 states have internal predecessors, (3099), 347 states have call successors, (347), 80 states have call predecessors, (347), 80 states have return successors, (347), 334 states have call predecessors, (347), 347 states have call successors, (347) [2024-11-28 05:01:09,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3376 states to 3376 states and 3793 transitions. [2024-11-28 05:01:09,666 INFO L78 Accepts]: Start accepts. Automaton has 3376 states and 3793 transitions. Word has length 424 [2024-11-28 05:01:09,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:01:09,667 INFO L471 AbstractCegarLoop]: Abstraction has 3376 states and 3793 transitions. [2024-11-28 05:01:09,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 93 states have (on average 6.053763440860215) internal successors, (563), 93 states have internal predecessors, (563), 36 states have call successors, (124), 17 states have call predecessors, (124), 17 states have return successors, (124), 36 states have call predecessors, (124), 36 states have call successors, (124) [2024-11-28 05:01:09,667 INFO L276 IsEmpty]: Start isEmpty. Operand 3376 states and 3793 transitions. [2024-11-28 05:01:09,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-11-28 05:01:09,671 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:01:09,671 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:01:09,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2024-11-28 05:01:09,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:01:09,871 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 05:01:09,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:01:09,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1715419166, now seen corresponding path program 4 times [2024-11-28 05:01:09,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:01:09,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537703025] [2024-11-28 05:01:09,872 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 05:01:09,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:01:09,903 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 05:01:09,903 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:01:14,081 INFO L134 CoverageAnalysis]: Checked inductivity of 5460 backedges. 0 proven. 1136 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2024-11-28 05:01:14,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:01:14,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537703025] [2024-11-28 05:01:14,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537703025] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:01:14,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270911807] [2024-11-28 05:01:14,082 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 05:01:14,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:01:14,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:01:14,084 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:01:14,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-11-28 05:01:14,262 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 05:01:14,262 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:01:14,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-28 05:01:14,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:01:15,719 INFO L134 CoverageAnalysis]: Checked inductivity of 5460 backedges. 0 proven. 5300 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-28 05:01:15,719 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:01:20,539 INFO L134 CoverageAnalysis]: Checked inductivity of 5460 backedges. 0 proven. 1136 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2024-11-28 05:01:20,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270911807] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:01:20,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:01:20,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 39, 40] total 98 [2024-11-28 05:01:20,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037542468] [2024-11-28 05:01:20,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:01:20,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2024-11-28 05:01:20,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:01:20,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2024-11-28 05:01:20,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2175, Invalid=7331, Unknown=0, NotChecked=0, Total=9506 [2024-11-28 05:01:20,543 INFO L87 Difference]: Start difference. First operand 3376 states and 3793 transitions. Second operand has 98 states, 98 states have (on average 5.887755102040816) internal successors, (577), 98 states have internal predecessors, (577), 36 states have call successors, (141), 19 states have call predecessors, (141), 19 states have return successors, (141), 36 states have call predecessors, (141), 36 states have call successors, (141) [2024-11-28 05:01:30,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:01:30,797 INFO L93 Difference]: Finished difference Result 4482 states and 5032 transitions. [2024-11-28 05:01:30,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2024-11-28 05:01:30,797 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 5.887755102040816) internal successors, (577), 98 states have internal predecessors, (577), 36 states have call successors, (141), 19 states have call predecessors, (141), 19 states have return successors, (141), 36 states have call predecessors, (141), 36 states have call successors, (141) Word has length 476 [2024-11-28 05:01:30,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:01:30,802 INFO L225 Difference]: With dead ends: 4482 [2024-11-28 05:01:30,802 INFO L226 Difference]: Without dead ends: 4259 [2024-11-28 05:01:30,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1083 GetRequests, 912 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9810 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=6239, Invalid=23517, Unknown=0, NotChecked=0, Total=29756 [2024-11-28 05:01:30,806 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 851 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:01:30,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 1346 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 05:01:30,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4259 states. [2024-11-28 05:01:33,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4259 to 4046. [2024-11-28 05:01:33,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4046 states, 3533 states have (on average 1.0484007925275969) internal successors, (3704), 3552 states have internal predecessors, (3704), 407 states have call successors, (407), 100 states have call predecessors, (407), 100 states have return successors, (407), 393 states have call predecessors, (407), 407 states have call successors, (407) [2024-11-28 05:01:33,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4046 states to 4046 states and 4518 transitions. [2024-11-28 05:01:33,214 INFO L78 Accepts]: Start accepts. Automaton has 4046 states and 4518 transitions. Word has length 476 [2024-11-28 05:01:33,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:01:33,215 INFO L471 AbstractCegarLoop]: Abstraction has 4046 states and 4518 transitions. [2024-11-28 05:01:33,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 5.887755102040816) internal successors, (577), 98 states have internal predecessors, (577), 36 states have call successors, (141), 19 states have call predecessors, (141), 19 states have return successors, (141), 36 states have call predecessors, (141), 36 states have call successors, (141) [2024-11-28 05:01:33,215 INFO L276 IsEmpty]: Start isEmpty. Operand 4046 states and 4518 transitions. [2024-11-28 05:01:33,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2024-11-28 05:01:33,224 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:01:33,224 INFO L218 NwaCegarLoop]: trace histogram [57, 57, 57, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 1, 1, 1] [2024-11-28 05:01:33,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2024-11-28 05:01:33,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:01:33,424 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 05:01:33,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:01:33,425 INFO L85 PathProgramCache]: Analyzing trace with hash -2120648055, now seen corresponding path program 3 times [2024-11-28 05:01:33,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:01:33,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953861929] [2024-11-28 05:01:33,425 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:01:33,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:01:33,486 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2024-11-28 05:01:33,486 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:01:34,529 INFO L134 CoverageAnalysis]: Checked inductivity of 8778 backedges. 0 proven. 2394 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2024-11-28 05:01:34,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:01:34,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953861929] [2024-11-28 05:01:34,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953861929] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:01:34,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223413331] [2024-11-28 05:01:34,529 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:01:34,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:01:34,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:01:34,531 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:01:34,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2024-11-28 05:01:34,611 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 05:01:34,611 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:01:34,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 05:01:34,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:01:35,544 INFO L134 CoverageAnalysis]: Checked inductivity of 8778 backedges. 168 proven. 90 refuted. 0 times theorem prover too weak. 8520 trivial. 0 not checked. [2024-11-28 05:01:35,544 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:01:35,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223413331] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:01:35,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:01:35,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 6] total 25 [2024-11-28 05:01:35,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100916273] [2024-11-28 05:01:35,743 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:01:35,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 05:01:35,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:01:35,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 05:01:35,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=491, Unknown=0, NotChecked=0, Total=756 [2024-11-28 05:01:35,745 INFO L87 Difference]: Start difference. First operand 4046 states and 4518 transitions. Second operand has 26 states, 25 states have (on average 9.36) internal successors, (234), 26 states have internal predecessors, (234), 20 states have call successors, (60), 1 states have call predecessors, (60), 2 states have return successors, (61), 21 states have call predecessors, (61), 20 states have call successors, (61) [2024-11-28 05:01:44,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:01:44,486 INFO L93 Difference]: Finished difference Result 7130 states and 8031 transitions. [2024-11-28 05:01:44,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-28 05:01:44,487 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 9.36) internal successors, (234), 26 states have internal predecessors, (234), 20 states have call successors, (60), 1 states have call predecessors, (60), 2 states have return successors, (61), 21 states have call predecessors, (61), 20 states have call successors, (61) Word has length 496 [2024-11-28 05:01:44,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:01:44,496 INFO L225 Difference]: With dead ends: 7130 [2024-11-28 05:01:44,496 INFO L226 Difference]: Without dead ends: 7129 [2024-11-28 05:01:44,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1105 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1525, Invalid=3305, Unknown=0, NotChecked=0, Total=4830 [2024-11-28 05:01:44,497 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 2275 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2277 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:01:44,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2277 Valid, 576 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [343 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 05:01:44,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7129 states. [2024-11-28 05:01:46,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7129 to 4045. [2024-11-28 05:01:46,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4045 states, 3533 states have (on average 1.0472686102462496) internal successors, (3700), 3551 states have internal predecessors, (3700), 407 states have call successors, (407), 100 states have call predecessors, (407), 100 states have return successors, (407), 393 states have call predecessors, (407), 407 states have call successors, (407) [2024-11-28 05:01:46,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4045 states to 4045 states and 4514 transitions. [2024-11-28 05:01:46,929 INFO L78 Accepts]: Start accepts. Automaton has 4045 states and 4514 transitions. Word has length 496 [2024-11-28 05:01:46,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:01:46,929 INFO L471 AbstractCegarLoop]: Abstraction has 4045 states and 4514 transitions. [2024-11-28 05:01:46,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 9.36) internal successors, (234), 26 states have internal predecessors, (234), 20 states have call successors, (60), 1 states have call predecessors, (60), 2 states have return successors, (61), 21 states have call predecessors, (61), 20 states have call successors, (61) [2024-11-28 05:01:46,930 INFO L276 IsEmpty]: Start isEmpty. Operand 4045 states and 4514 transitions. [2024-11-28 05:01:46,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2024-11-28 05:01:46,935 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:01:46,936 INFO L218 NwaCegarLoop]: trace histogram [52, 52, 52, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:01:46,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2024-11-28 05:01:47,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:01:47,136 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 05:01:47,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:01:47,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1043344965, now seen corresponding path program 5 times [2024-11-28 05:01:47,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:01:47,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371929] [2024-11-28 05:01:47,137 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 05:01:47,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:01:47,330 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) [2024-11-28 05:01:47,331 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:01:50,584 INFO L134 CoverageAnalysis]: Checked inductivity of 6720 backedges. 0 proven. 1416 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2024-11-28 05:01:50,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:01:50,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371929] [2024-11-28 05:01:50,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371929] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:01:50,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084591634] [2024-11-28 05:01:50,584 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 05:01:50,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:01:50,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:01:50,586 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:01:50,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2024-11-28 05:01:51,257 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) [2024-11-28 05:01:51,257 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:01:51,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-28 05:01:51,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:01:52,753 INFO L134 CoverageAnalysis]: Checked inductivity of 6720 backedges. 0 proven. 6544 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2024-11-28 05:01:52,753 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:01:58,086 INFO L134 CoverageAnalysis]: Checked inductivity of 6720 backedges. 0 proven. 1416 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2024-11-28 05:01:58,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084591634] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:01:58,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:01:58,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 43, 44] total 88 [2024-11-28 05:01:58,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868120843] [2024-11-28 05:01:58,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:01:58,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2024-11-28 05:01:58,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:01:58,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2024-11-28 05:01:58,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1576, Invalid=6080, Unknown=0, NotChecked=0, Total=7656 [2024-11-28 05:01:58,090 INFO L87 Difference]: Start difference. First operand 4045 states and 4514 transitions. Second operand has 88 states, 88 states have (on average 6.829545454545454) internal successors, (601), 88 states have internal predecessors, (601), 40 states have call successors, (156), 21 states have call predecessors, (156), 21 states have return successors, (156), 40 states have call predecessors, (156), 40 states have call successors, (156) [2024-11-28 05:02:11,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:11,428 INFO L93 Difference]: Finished difference Result 5735 states and 6449 transitions. [2024-11-28 05:02:11,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2024-11-28 05:02:11,428 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 88 states have (on average 6.829545454545454) internal successors, (601), 88 states have internal predecessors, (601), 40 states have call successors, (156), 21 states have call predecessors, (156), 21 states have return successors, (156), 40 states have call predecessors, (156), 40 states have call successors, (156) Word has length 528 [2024-11-28 05:02:11,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:11,436 INFO L225 Difference]: With dead ends: 5735 [2024-11-28 05:02:11,436 INFO L226 Difference]: Without dead ends: 5511 [2024-11-28 05:02:11,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1201 GetRequests, 1014 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9994 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=7651, Invalid=27881, Unknown=0, NotChecked=0, Total=35532 [2024-11-28 05:02:11,442 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 973 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:11,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 1230 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 05:02:11,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5511 states. [2024-11-28 05:02:14,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5511 to 5205. [2024-11-28 05:02:14,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 4560 states have (on average 1.050219298245614) internal successors, (4789), 4579 states have internal predecessors, (4789), 517 states have call successors, (517), 123 states have call predecessors, (517), 123 states have return successors, (517), 502 states have call predecessors, (517), 517 states have call successors, (517) [2024-11-28 05:02:14,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 5823 transitions. [2024-11-28 05:02:14,764 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 5823 transitions. Word has length 528 [2024-11-28 05:02:14,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:14,765 INFO L471 AbstractCegarLoop]: Abstraction has 5205 states and 5823 transitions. [2024-11-28 05:02:14,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 6.829545454545454) internal successors, (601), 88 states have internal predecessors, (601), 40 states have call successors, (156), 21 states have call predecessors, (156), 21 states have return successors, (156), 40 states have call predecessors, (156), 40 states have call successors, (156) [2024-11-28 05:02:14,765 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 5823 transitions. [2024-11-28 05:02:14,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2024-11-28 05:02:14,772 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:14,772 INFO L218 NwaCegarLoop]: trace histogram [57, 57, 57, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:02:14,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2024-11-28 05:02:14,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:14,973 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 05:02:14,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:14,973 INFO L85 PathProgramCache]: Analyzing trace with hash -304621100, now seen corresponding path program 6 times [2024-11-28 05:02:14,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:14,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569770361] [2024-11-28 05:02:14,973 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 05:02:14,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:15,205 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 23 check-sat command(s) [2024-11-28 05:02:15,205 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:02:20,229 INFO L134 CoverageAnalysis]: Checked inductivity of 8112 backedges. 0 proven. 1728 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2024-11-28 05:02:20,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:20,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569770361] [2024-11-28 05:02:20,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569770361] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:02:20,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531477736] [2024-11-28 05:02:20,230 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 05:02:20,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:20,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:20,232 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:20,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2024-11-28 05:02:21,709 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 23 check-sat command(s) [2024-11-28 05:02:21,709 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:02:21,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-28 05:02:21,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:24,038 INFO L134 CoverageAnalysis]: Checked inductivity of 8112 backedges. 0 proven. 7920 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-28 05:02:24,038 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:02:30,523 INFO L134 CoverageAnalysis]: Checked inductivity of 8112 backedges. 0 proven. 1728 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2024-11-28 05:02:30,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531477736] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:02:30,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:02:30,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 47, 48] total 111 [2024-11-28 05:02:30,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347182190] [2024-11-28 05:02:30,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:02:30,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 111 states [2024-11-28 05:02:30,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:30,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2024-11-28 05:02:30,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2457, Invalid=9753, Unknown=0, NotChecked=0, Total=12210 [2024-11-28 05:02:30,528 INFO L87 Difference]: Start difference. First operand 5205 states and 5823 transitions. Second operand has 111 states, 111 states have (on average 6.405405405405405) internal successors, (711), 111 states have internal predecessors, (711), 46 states have call successors, (169), 23 states have call predecessors, (169), 23 states have return successors, (169), 46 states have call predecessors, (169), 46 states have call successors, (169) [2024-11-28 05:02:46,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:46,585 INFO L93 Difference]: Finished difference Result 6869 states and 7731 transitions. [2024-11-28 05:02:46,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2024-11-28 05:02:46,586 INFO L78 Accepts]: Start accepts. Automaton has has 111 states, 111 states have (on average 6.405405405405405) internal successors, (711), 111 states have internal predecessors, (711), 46 states have call successors, (169), 23 states have call predecessors, (169), 23 states have return successors, (169), 46 states have call predecessors, (169), 46 states have call successors, (169) Word has length 580 [2024-11-28 05:02:46,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:46,595 INFO L225 Difference]: With dead ends: 6869 [2024-11-28 05:02:46,595 INFO L226 Difference]: Without dead ends: 6645 [2024-11-28 05:02:46,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1322 GetRequests, 1105 SyntacticMatches, 2 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14539 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=9555, Invalid=37317, Unknown=0, NotChecked=0, Total=46872 [2024-11-28 05:02:46,599 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 1122 mSDsluCounter, 1471 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:46,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 1521 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 05:02:46,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6645 states. [2024-11-28 05:02:50,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6645 to 6521. [2024-11-28 05:02:50,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6521 states, 5721 states have (on average 1.0517392064324418) internal successors, (6017), 5744 states have internal predecessors, (6017), 643 states have call successors, (643), 152 states have call predecessors, (643), 152 states have return successors, (643), 624 states have call predecessors, (643), 643 states have call successors, (643) [2024-11-28 05:02:50,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6521 states to 6521 states and 7303 transitions. [2024-11-28 05:02:50,822 INFO L78 Accepts]: Start accepts. Automaton has 6521 states and 7303 transitions. Word has length 580 [2024-11-28 05:02:50,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:50,822 INFO L471 AbstractCegarLoop]: Abstraction has 6521 states and 7303 transitions. [2024-11-28 05:02:50,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 111 states, 111 states have (on average 6.405405405405405) internal successors, (711), 111 states have internal predecessors, (711), 46 states have call successors, (169), 23 states have call predecessors, (169), 23 states have return successors, (169), 46 states have call predecessors, (169), 46 states have call successors, (169) [2024-11-28 05:02:50,823 INFO L276 IsEmpty]: Start isEmpty. Operand 6521 states and 7303 transitions. [2024-11-28 05:02:50,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2024-11-28 05:02:50,831 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:50,831 INFO L218 NwaCegarLoop]: trace histogram [69, 69, 69, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 1, 1, 1] [2024-11-28 05:02:50,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2024-11-28 05:02:51,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:51,031 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 05:02:51,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:51,032 INFO L85 PathProgramCache]: Analyzing trace with hash 459547067, now seen corresponding path program 4 times [2024-11-28 05:02:51,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:51,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882241681] [2024-11-28 05:02:51,032 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 05:02:51,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:51,058 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 05:02:51,058 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:02:52,435 INFO L134 CoverageAnalysis]: Checked inductivity of 12882 backedges. 0 proven. 3498 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2024-11-28 05:02:52,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:52,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882241681] [2024-11-28 05:02:52,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882241681] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:02:52,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391032535] [2024-11-28 05:02:52,436 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 05:02:52,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:52,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:52,438 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:52,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2024-11-28 05:02:52,620 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 05:02:52,620 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:02:52,623 INFO L256 TraceCheckSpWp]: Trace formula consists of 1080 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 05:02:52,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:53,598 INFO L134 CoverageAnalysis]: Checked inductivity of 12882 backedges. 0 proven. 3498 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2024-11-28 05:02:53,599 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:02:56,059 INFO L134 CoverageAnalysis]: Checked inductivity of 12882 backedges. 0 proven. 3498 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2024-11-28 05:02:56,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391032535] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:02:56,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:02:56,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2024-11-28 05:02:56,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192986584] [2024-11-28 05:02:56,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:02:56,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-28 05:02:56,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:56,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-28 05:02:56,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2024-11-28 05:02:56,062 INFO L87 Difference]: Start difference. First operand 6521 states and 7303 transitions. Second operand has 49 states, 48 states have (on average 10.791666666666666) internal successors, (518), 49 states have internal predecessors, (518), 47 states have call successors, (141), 1 states have call predecessors, (141), 1 states have return successors, (141), 47 states have call predecessors, (141), 47 states have call successors, (141) [2024-11-28 05:03:07,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:03:07,734 INFO L93 Difference]: Finished difference Result 12761 states and 14731 transitions. [2024-11-28 05:03:07,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-28 05:03:07,735 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 10.791666666666666) internal successors, (518), 49 states have internal predecessors, (518), 47 states have call successors, (141), 1 states have call predecessors, (141), 1 states have return successors, (141), 47 states have call predecessors, (141), 47 states have call successors, (141) Word has length 598 [2024-11-28 05:03:07,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:03:07,751 INFO L225 Difference]: With dead ends: 12761 [2024-11-28 05:03:07,751 INFO L226 Difference]: Without dead ends: 12759 [2024-11-28 05:03:07,753 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1218 GetRequests, 1171 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2024-11-28 05:03:07,753 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 2425 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2517 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:03:07,754 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2517 Valid, 1439 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 1018 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 05:03:07,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12759 states. [2024-11-28 05:03:11,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12759 to 6121. [2024-11-28 05:03:11,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6121 states, 5359 states have (on average 1.0487031162530323) internal successors, (5620), 5383 states have internal predecessors, (5620), 615 states have call successors, (615), 142 states have call predecessors, (615), 142 states have return successors, (615), 595 states have call predecessors, (615), 615 states have call successors, (615) [2024-11-28 05:03:11,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6121 states to 6121 states and 6850 transitions. [2024-11-28 05:03:11,995 INFO L78 Accepts]: Start accepts. Automaton has 6121 states and 6850 transitions. Word has length 598 [2024-11-28 05:03:11,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:03:11,996 INFO L471 AbstractCegarLoop]: Abstraction has 6121 states and 6850 transitions. [2024-11-28 05:03:11,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 10.791666666666666) internal successors, (518), 49 states have internal predecessors, (518), 47 states have call successors, (141), 1 states have call predecessors, (141), 1 states have return successors, (141), 47 states have call predecessors, (141), 47 states have call successors, (141) [2024-11-28 05:03:11,996 INFO L276 IsEmpty]: Start isEmpty. Operand 6121 states and 6850 transitions. [2024-11-28 05:03:12,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2024-11-28 05:03:12,008 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:03:12,008 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:03:12,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2024-11-28 05:03:12,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:03:12,209 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 05:03:12,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:03:12,209 INFO L85 PathProgramCache]: Analyzing trace with hash 775213101, now seen corresponding path program 7 times [2024-11-28 05:03:12,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:03:12,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905757193] [2024-11-28 05:03:12,210 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 05:03:12,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:03:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:16,928 INFO L134 CoverageAnalysis]: Checked inductivity of 9636 backedges. 0 proven. 2072 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2024-11-28 05:03:16,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:03:16,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905757193] [2024-11-28 05:03:16,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905757193] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:03:16,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730568760] [2024-11-28 05:03:16,929 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 05:03:16,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:03:16,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:03:16,932 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:03:16,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2024-11-28 05:03:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:17,138 INFO L256 TraceCheckSpWp]: Trace formula consists of 1100 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-28 05:03:17,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:03:19,051 INFO L134 CoverageAnalysis]: Checked inductivity of 9636 backedges. 0 proven. 9428 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-28 05:03:19,051 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:03:26,147 INFO L134 CoverageAnalysis]: Checked inductivity of 9636 backedges. 0 proven. 2072 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2024-11-28 05:03:26,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730568760] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:03:26,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:03:26,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 51, 52] total 105 [2024-11-28 05:03:26,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219851864] [2024-11-28 05:03:26,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:03:26,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2024-11-28 05:03:26,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:03:26,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2024-11-28 05:03:26,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2197, Invalid=8723, Unknown=0, NotChecked=0, Total=10920 [2024-11-28 05:03:26,152 INFO L87 Difference]: Start difference. First operand 6121 states and 6850 transitions. Second operand has 105 states, 105 states have (on average 6.885714285714286) internal successors, (723), 105 states have internal predecessors, (723), 48 states have call successors, (186), 25 states have call predecessors, (186), 25 states have return successors, (186), 48 states have call predecessors, (186), 48 states have call successors, (186) [2024-11-28 05:03:45,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:03:45,561 INFO L93 Difference]: Finished difference Result 7894 states and 8852 transitions. [2024-11-28 05:03:45,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2024-11-28 05:03:45,561 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 105 states have (on average 6.885714285714286) internal successors, (723), 105 states have internal predecessors, (723), 48 states have call successors, (186), 25 states have call predecessors, (186), 25 states have return successors, (186), 48 states have call predecessors, (186), 48 states have call successors, (186) Word has length 632 [2024-11-28 05:03:45,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:03:45,570 INFO L225 Difference]: With dead ends: 7894 [2024-11-28 05:03:45,570 INFO L226 Difference]: Without dead ends: 7671 [2024-11-28 05:03:45,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1437 GetRequests, 1212 SyntacticMatches, 0 SemanticMatches, 225 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14515 ImplicationChecksByTransitivity, 19.2s TimeCoverageRelationStatistics Valid=10993, Invalid=40309, Unknown=0, NotChecked=0, Total=51302 [2024-11-28 05:03:45,575 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 1273 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:03:45,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1273 Valid, 1280 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 05:03:45,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7671 states. [2024-11-28 05:03:50,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7671 to 7161. [2024-11-28 05:03:50,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7161 states, 6279 states have (on average 1.0477783086478738) internal successors, (6579), 6305 states have internal predecessors, (6579), 711 states have call successors, (711), 166 states have call predecessors, (711), 166 states have return successors, (711), 689 states have call predecessors, (711), 711 states have call successors, (711) [2024-11-28 05:03:50,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7161 states to 7161 states and 8001 transitions. [2024-11-28 05:03:50,890 INFO L78 Accepts]: Start accepts. Automaton has 7161 states and 8001 transitions. Word has length 632 [2024-11-28 05:03:50,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:03:50,891 INFO L471 AbstractCegarLoop]: Abstraction has 7161 states and 8001 transitions. [2024-11-28 05:03:50,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 6.885714285714286) internal successors, (723), 105 states have internal predecessors, (723), 48 states have call successors, (186), 25 states have call predecessors, (186), 25 states have return successors, (186), 48 states have call predecessors, (186), 48 states have call successors, (186) [2024-11-28 05:03:50,891 INFO L276 IsEmpty]: Start isEmpty. Operand 7161 states and 8001 transitions. [2024-11-28 05:03:50,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 685 [2024-11-28 05:03:50,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:03:50,902 INFO L218 NwaCegarLoop]: trace histogram [67, 67, 67, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:03:50,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2024-11-28 05:03:51,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:03:51,102 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 05:03:51,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:03:51,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1726569274, now seen corresponding path program 8 times [2024-11-28 05:03:51,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:03:51,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519901811] [2024-11-28 05:03:51,103 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:03:51,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:03:51,167 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:03:51,167 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:03:56,626 INFO L134 CoverageAnalysis]: Checked inductivity of 11292 backedges. 0 proven. 2448 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2024-11-28 05:03:56,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:03:56,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519901811] [2024-11-28 05:03:56,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519901811] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:03:56,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160754909] [2024-11-28 05:03:56,627 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:03:56,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:03:56,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:03:56,629 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:03:56,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2024-11-28 05:03:56,848 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:03:56,848 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:03:56,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 1186 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-28 05:03:56,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:03:58,871 INFO L134 CoverageAnalysis]: Checked inductivity of 11292 backedges. 0 proven. 11068 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-28 05:03:58,871 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:04:06,795 INFO L134 CoverageAnalysis]: Checked inductivity of 11292 backedges. 0 proven. 2448 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2024-11-28 05:04:06,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160754909] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:04:06,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:04:06,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 55, 56] total 111 [2024-11-28 05:04:06,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533649103] [2024-11-28 05:04:06,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:04:06,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 111 states [2024-11-28 05:04:06,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:06,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2024-11-28 05:04:06,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2406, Invalid=9804, Unknown=0, NotChecked=0, Total=12210 [2024-11-28 05:04:06,802 INFO L87 Difference]: Start difference. First operand 7161 states and 8001 transitions. Second operand has 111 states, 111 states have (on average 7.09009009009009) internal successors, (787), 111 states have internal predecessors, (787), 49 states have call successors, (201), 27 states have call predecessors, (201), 27 states have return successors, (201), 49 states have call predecessors, (201), 49 states have call successors, (201) [2024-11-28 05:04:28,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:28,555 INFO L93 Difference]: Finished difference Result 10085 states and 11265 transitions. [2024-11-28 05:04:28,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2024-11-28 05:04:28,555 INFO L78 Accepts]: Start accepts. Automaton has has 111 states, 111 states have (on average 7.09009009009009) internal successors, (787), 111 states have internal predecessors, (787), 49 states have call successors, (201), 27 states have call predecessors, (201), 27 states have return successors, (201), 49 states have call predecessors, (201), 49 states have call successors, (201) Word has length 684 [2024-11-28 05:04:28,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:28,566 INFO L225 Difference]: With dead ends: 10085 [2024-11-28 05:04:28,566 INFO L226 Difference]: Without dead ends: 9862 [2024-11-28 05:04:28,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1552 GetRequests, 1312 SyntacticMatches, 4 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17127 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=11725, Invalid=44681, Unknown=0, NotChecked=0, Total=56406 [2024-11-28 05:04:28,571 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 1461 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1461 SdHoareTripleChecker+Valid, 1577 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:28,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1461 Valid, 1577 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 05:04:28,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9862 states. [2024-11-28 05:04:35,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9862 to 8569. [2024-11-28 05:04:35,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8569 states, 7520 states have (on average 1.0457446808510638) internal successors, (7864), 7550 states have internal predecessors, (7864), 839 states have call successors, (839), 205 states have call predecessors, (839), 205 states have return successors, (839), 813 states have call predecessors, (839), 839 states have call successors, (839) [2024-11-28 05:04:35,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8569 states to 8569 states and 9542 transitions. [2024-11-28 05:04:35,260 INFO L78 Accepts]: Start accepts. Automaton has 8569 states and 9542 transitions. Word has length 684 [2024-11-28 05:04:35,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:35,261 INFO L471 AbstractCegarLoop]: Abstraction has 8569 states and 9542 transitions. [2024-11-28 05:04:35,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 111 states, 111 states have (on average 7.09009009009009) internal successors, (787), 111 states have internal predecessors, (787), 49 states have call successors, (201), 27 states have call predecessors, (201), 27 states have return successors, (201), 49 states have call predecessors, (201), 49 states have call successors, (201) [2024-11-28 05:04:35,261 INFO L276 IsEmpty]: Start isEmpty. Operand 8569 states and 9542 transitions. [2024-11-28 05:04:35,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 736 [2024-11-28 05:04:35,276 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:35,276 INFO L218 NwaCegarLoop]: trace histogram [60, 60, 60, 25, 25, 25, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:35,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2024-11-28 05:04:35,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable82 [2024-11-28 05:04:35,477 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 05:04:35,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:35,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1306110001, now seen corresponding path program 4 times [2024-11-28 05:04:35,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:35,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407594545] [2024-11-28 05:04:35,477 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 05:04:35,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:35,537 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 05:04:35,538 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:04:47,272 INFO L134 CoverageAnalysis]: Checked inductivity of 12216 backedges. 0 proven. 5136 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-28 05:04:47,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:47,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407594545] [2024-11-28 05:04:47,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407594545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:04:47,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358117761] [2024-11-28 05:04:47,273 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 05:04:47,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:47,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:47,275 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:04:47,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6fa01d-8499-4001-bbc5-a22a3c771373/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2024-11-28 05:04:47,513 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 05:04:47,513 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:04:47,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 1223 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-28 05:04:47,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:49,727 INFO L134 CoverageAnalysis]: Checked inductivity of 12216 backedges. 0 proven. 12072 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 05:04:49,727 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:04:59,349 INFO L134 CoverageAnalysis]: Checked inductivity of 12216 backedges. 0 proven. 5136 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-28 05:04:59,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358117761] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:04:59,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:04:59,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [88, 59, 60] total 136 [2024-11-28 05:04:59,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548796100] [2024-11-28 05:04:59,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:04:59,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 136 states [2024-11-28 05:04:59,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:04:59,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 136 interpolants. [2024-11-28 05:04:59,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4746, Invalid=13614, Unknown=0, NotChecked=0, Total=18360 [2024-11-28 05:04:59,355 INFO L87 Difference]: Start difference. First operand 8569 states and 9542 transitions. Second operand has 136 states, 136 states have (on average 7.110294117647059) internal successors, (967), 136 states have internal predecessors, (967), 49 states have call successors, (174), 29 states have call predecessors, (174), 29 states have return successors, (174), 49 states have call predecessors, (174), 49 states have call successors, (174)