./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound20.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_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/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_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/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_c10c3c7c-4c48-4542-8414-81893856c461/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 4a3cef13903dd032b032a92c3e6d07b1ee77361a4ee844998d70fb602ded6daa --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:03:42,581 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:03:42,699 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 20:03:42,708 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:03:42,709 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:03:42,739 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:03:42,741 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:03:42,742 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:03:42,742 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:03:42,743 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:03:42,743 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:03:42,744 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:03:42,745 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:03:42,745 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:03:42,745 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:03:42,745 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:03:42,745 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:03:42,745 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:03:42,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:03:42,746 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:03:42,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:03:42,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:03:42,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:03:42,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:03:42,746 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:03:42,746 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:03:42,747 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:03:42,747 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:03:42,748 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:03:42,748 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:03:42,748 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:03:42,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:03:42,749 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:03:42,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:03:42,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:03:42,750 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:03:42,750 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:03:42,750 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:03:42,750 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:03:42,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:03:42,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:03:42,751 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:03:42,751 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:03:42,751 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:03:42,751 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:03:42,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:03:42,751 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:03:42,751 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:03:42,751 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:03:42,751 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:03:42,751 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_c10c3c7c-4c48-4542-8414-81893856c461/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 -> 4a3cef13903dd032b032a92c3e6d07b1ee77361a4ee844998d70fb602ded6daa [2024-11-27 20:03:43,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:03:43,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:03:43,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:03:43,108 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:03:43,108 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:03:43,110 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound20.c [2024-11-27 20:03:46,955 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/data/eda58fef6/59cc87704a2a4c8c9bc2ea0d8d41fa19/FLAG1773d28ca [2024-11-27 20:03:47,265 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:03:47,273 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound20.c [2024-11-27 20:03:47,291 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/data/eda58fef6/59cc87704a2a4c8c9bc2ea0d8d41fa19/FLAG1773d28ca [2024-11-27 20:03:47,324 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/data/eda58fef6/59cc87704a2a4c8c9bc2ea0d8d41fa19 [2024-11-27 20:03:47,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:03:47,331 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:03:47,333 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:03:47,335 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:03:47,340 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:03:47,341 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:03:47" (1/1) ... [2024-11-27 20:03:47,342 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@596b1ace and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:47, skipping insertion in model container [2024-11-27 20:03:47,344 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:03:47" (1/1) ... [2024-11-27 20:03:47,362 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:03:47,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:03:47,607 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:03:47,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:03:47,653 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:03:47,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:47 WrapperNode [2024-11-27 20:03:47,654 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:03:47,655 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:03:47,655 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:03:47,655 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:03:47,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:47" (1/1) ... [2024-11-27 20:03:47,677 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:47" (1/1) ... [2024-11-27 20:03:47,701 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2024-11-27 20:03:47,702 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:03:47,703 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:03:47,704 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:03:47,704 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:03:47,715 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:47" (1/1) ... [2024-11-27 20:03:47,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:47" (1/1) ... [2024-11-27 20:03:47,718 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:47" (1/1) ... [2024-11-27 20:03:47,746 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 20:03:47,746 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:47" (1/1) ... [2024-11-27 20:03:47,747 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:47" (1/1) ... [2024-11-27 20:03:47,752 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:47" (1/1) ... [2024-11-27 20:03:47,754 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:47" (1/1) ... [2024-11-27 20:03:47,761 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:47" (1/1) ... [2024-11-27 20:03:47,762 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:47" (1/1) ... [2024-11-27 20:03:47,763 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:47" (1/1) ... [2024-11-27 20:03:47,764 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:03:47,766 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:03:47,766 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:03:47,766 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:03:47,768 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:47" (1/1) ... [2024-11-27 20:03:47,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:03:47,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:03:47,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:03:47,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:03:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:03:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:03:47,844 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:03:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:03:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:03:47,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:03:47,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 20:03:47,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 20:03:47,926 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:03:47,929 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:03:48,233 INFO L? ?]: Removed 47 outVars from TransFormulas that were not future-live. [2024-11-27 20:03:48,234 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:03:48,248 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:03:48,248 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 20:03:48,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:03:48 BoogieIcfgContainer [2024-11-27 20:03:48,249 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:03:48,254 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:03:48,256 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:03:48,264 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:03:48,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:03:47" (1/3) ... [2024-11-27 20:03:48,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78890ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:03:48, skipping insertion in model container [2024-11-27 20:03:48,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:47" (2/3) ... [2024-11-27 20:03:48,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78890ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:03:48, skipping insertion in model container [2024-11-27 20:03:48,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:03:48" (3/3) ... [2024-11-27 20:03:48,267 INFO L128 eAbstractionObserver]: Analyzing ICFG mannadiv_unwindbound20.c [2024-11-27 20:03:48,286 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:03:48,288 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mannadiv_unwindbound20.c that has 3 procedures, 69 locations, 1 initial locations, 1 loop locations, and 22 error locations. [2024-11-27 20:03:48,372 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:03:48,393 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;@db3ec5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:03:48,393 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-27 20:03:48,399 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 40 states have (on average 1.7) internal successors, (68), 62 states have internal predecessors, (68), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 20:03:48,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-27 20:03:48,408 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:03:48,409 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:03:48,410 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:03:48,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:48,415 INFO L85 PathProgramCache]: Analyzing trace with hash -2141166240, now seen corresponding path program 1 times [2024-11-27 20:03:48,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:48,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279585878] [2024-11-27 20:03:48,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:48,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:48,620 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 20:03:48,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:48,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279585878] [2024-11-27 20:03:48,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279585878] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:03:48,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727968409] [2024-11-27 20:03:48,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:48,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:03:48,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:03:48,630 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:03:48,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:03:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:48,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:03:48,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:03:48,733 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 20:03:48,736 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:03:48,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727968409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:03:48,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:03:48,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 20:03:48,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070709179] [2024-11-27 20:03:48,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:03:48,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:03:48,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:48,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:03:48,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:03:48,776 INFO L87 Difference]: Start difference. First operand has 69 states, 40 states have (on average 1.7) internal successors, (68), 62 states have internal predecessors, (68), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:03:48,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:03:48,814 INFO L93 Difference]: Finished difference Result 134 states and 151 transitions. [2024-11-27 20:03:48,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:03:48,820 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-11-27 20:03:48,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:03:48,828 INFO L225 Difference]: With dead ends: 134 [2024-11-27 20:03:48,830 INFO L226 Difference]: Without dead ends: 62 [2024-11-27 20:03:48,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:03:48,840 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:03:48,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:03:48,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-27 20:03:48,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-27 20:03:48,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 56 states have internal predecessors, (59), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 20:03:48,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2024-11-27 20:03:48,900 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 15 [2024-11-27 20:03:48,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:03:48,901 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2024-11-27 20:03:48,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:03:48,902 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2024-11-27 20:03:48,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-27 20:03:48,904 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:03:48,904 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:03:48,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:03:49,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 20:03:49,107 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:03:49,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:49,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1382845153, now seen corresponding path program 1 times [2024-11-27 20:03:49,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:49,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956207827] [2024-11-27 20:03:49,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:49,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:49,330 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:03:49,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:49,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956207827] [2024-11-27 20:03:49,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956207827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:03:49,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:03:49,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:03:49,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669646133] [2024-11-27 20:03:49,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:03:49,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:03:49,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:49,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:03:49,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:03:49,334 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-11-27 20:03:49,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:03:49,388 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2024-11-27 20:03:49,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:03:49,389 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 15 [2024-11-27 20:03:49,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:03:49,390 INFO L225 Difference]: With dead ends: 62 [2024-11-27 20:03:49,390 INFO L226 Difference]: Without dead ends: 61 [2024-11-27 20:03:49,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:03:49,392 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 60 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:03:49,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 115 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:03:49,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-27 20:03:49,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-27 20:03:49,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 55 states have internal predecessors, (58), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 20:03:49,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2024-11-27 20:03:49,415 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 15 [2024-11-27 20:03:49,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:03:49,417 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2024-11-27 20:03:49,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-11-27 20:03:49,417 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2024-11-27 20:03:49,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-27 20:03:49,418 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:03:49,418 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:03:49,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:03:49,418 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:03:49,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:49,419 INFO L85 PathProgramCache]: Analyzing trace with hash 81473260, now seen corresponding path program 1 times [2024-11-27 20:03:49,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:49,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188114904] [2024-11-27 20:03:49,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:49,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:49,533 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:03:49,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:49,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188114904] [2024-11-27 20:03:49,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188114904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:03:49,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:03:49,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:03:49,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596674893] [2024-11-27 20:03:49,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:03:49,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:03:49,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:49,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:03:49,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:03:49,535 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-27 20:03:49,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:03:49,597 INFO L93 Difference]: Finished difference Result 74 states and 77 transitions. [2024-11-27 20:03:49,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:03:49,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 16 [2024-11-27 20:03:49,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:03:49,599 INFO L225 Difference]: With dead ends: 74 [2024-11-27 20:03:49,599 INFO L226 Difference]: Without dead ends: 65 [2024-11-27 20:03:49,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:03:49,601 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 8 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 168 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 [2024-11-27 20:03:49,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 168 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:03:49,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-27 20:03:49,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-11-27 20:03:49,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 39 states have (on average 1.5897435897435896) internal successors, (62), 59 states have internal predecessors, (62), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 20:03:49,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2024-11-27 20:03:49,613 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 16 [2024-11-27 20:03:49,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:03:49,613 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2024-11-27 20:03:49,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-27 20:03:49,614 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2024-11-27 20:03:49,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-27 20:03:49,614 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:03:49,614 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:03:49,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:03:49,615 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:03:49,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:49,618 INFO L85 PathProgramCache]: Analyzing trace with hash 986393009, now seen corresponding path program 1 times [2024-11-27 20:03:49,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:49,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533944314] [2024-11-27 20:03:49,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:49,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:03:49,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1439588834] [2024-11-27 20:03:49,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:49,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:03:49,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:03:49,683 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:03:49,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:03:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:49,740 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:03:49,742 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:03:49,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:03:49,766 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:03:49,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:49,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533944314] [2024-11-27 20:03:49,767 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:03:49,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439588834] [2024-11-27 20:03:49,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439588834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:03:49,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:03:49,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:03:49,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407138098] [2024-11-27 20:03:49,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:03:49,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:03:49,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:49,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:03:49,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:03:49,771 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-27 20:03:49,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:03:49,925 INFO L93 Difference]: Finished difference Result 103 states and 115 transitions. [2024-11-27 20:03:49,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:03:49,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 18 [2024-11-27 20:03:49,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:03:49,928 INFO L225 Difference]: With dead ends: 103 [2024-11-27 20:03:49,928 INFO L226 Difference]: Without dead ends: 97 [2024-11-27 20:03:49,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:03:49,932 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 28 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:03:49,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 86 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:03:49,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-27 20:03:49,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 88. [2024-11-27 20:03:49,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 61 states have (on average 1.6065573770491803) internal successors, (98), 81 states have internal predecessors, (98), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 20:03:49,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 106 transitions. [2024-11-27 20:03:49,954 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 106 transitions. Word has length 18 [2024-11-27 20:03:49,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:03:49,954 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 106 transitions. [2024-11-27 20:03:49,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-27 20:03:49,959 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 106 transitions. [2024-11-27 20:03:49,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-27 20:03:49,959 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:03:49,959 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:03:49,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:03:50,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:03:50,160 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:03:50,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:50,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1264089069, now seen corresponding path program 1 times [2024-11-27 20:03:50,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:50,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056166479] [2024-11-27 20:03:50,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:50,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:50,309 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:03:50,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:50,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056166479] [2024-11-27 20:03:50,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056166479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:03:50,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:03:50,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:03:50,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961450823] [2024-11-27 20:03:50,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:03:50,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:03:50,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:50,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:03:50,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:03:50,312 INFO L87 Difference]: Start difference. First operand 88 states and 106 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-11-27 20:03:50,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:03:50,524 INFO L93 Difference]: Finished difference Result 137 states and 173 transitions. [2024-11-27 20:03:50,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:03:50,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 20 [2024-11-27 20:03:50,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:03:50,531 INFO L225 Difference]: With dead ends: 137 [2024-11-27 20:03:50,533 INFO L226 Difference]: Without dead ends: 130 [2024-11-27 20:03:50,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:03:50,535 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 27 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:03:50,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 116 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:03:50,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-27 20:03:50,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 124. [2024-11-27 20:03:50,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 95 states have (on average 1.5578947368421052) internal successors, (148), 115 states have internal predecessors, (148), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:03:50,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 160 transitions. [2024-11-27 20:03:50,568 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 160 transitions. Word has length 20 [2024-11-27 20:03:50,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:03:50,569 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 160 transitions. [2024-11-27 20:03:50,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-11-27 20:03:50,569 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 160 transitions. [2024-11-27 20:03:50,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-27 20:03:50,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:03:50,570 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:03:50,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:03:50,571 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:03:50,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:50,571 INFO L85 PathProgramCache]: Analyzing trace with hash -532055418, now seen corresponding path program 1 times [2024-11-27 20:03:50,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:50,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114391353] [2024-11-27 20:03:50,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:50,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:50,713 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:03:50,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:50,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114391353] [2024-11-27 20:03:50,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114391353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:03:50,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:03:50,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:03:50,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680412589] [2024-11-27 20:03:50,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:03:50,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:03:50,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:50,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:03:50,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:03:50,717 INFO L87 Difference]: Start difference. First operand 124 states and 160 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-27 20:03:51,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:03:51,025 INFO L93 Difference]: Finished difference Result 134 states and 163 transitions. [2024-11-27 20:03:51,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:03:51,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 21 [2024-11-27 20:03:51,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:03:51,029 INFO L225 Difference]: With dead ends: 134 [2024-11-27 20:03:51,031 INFO L226 Difference]: Without dead ends: 125 [2024-11-27 20:03:51,032 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:03:51,033 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 28 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:03:51,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 120 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:03:51,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-27 20:03:51,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 120. [2024-11-27 20:03:51,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 91 states have (on average 1.5274725274725274) internal successors, (139), 111 states have internal predecessors, (139), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:03:51,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 151 transitions. [2024-11-27 20:03:51,061 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 151 transitions. Word has length 21 [2024-11-27 20:03:51,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:03:51,062 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 151 transitions. [2024-11-27 20:03:51,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-27 20:03:51,062 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 151 transitions. [2024-11-27 20:03:51,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-27 20:03:51,062 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:03:51,063 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:03:51,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:03:51,063 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:03:51,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:51,068 INFO L85 PathProgramCache]: Analyzing trace with hash 686151285, now seen corresponding path program 1 times [2024-11-27 20:03:51,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:51,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332861121] [2024-11-27 20:03:51,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:51,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:51,357 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:03:51,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:51,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332861121] [2024-11-27 20:03:51,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332861121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:03:51,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453296004] [2024-11-27 20:03:51,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:51,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:03:51,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:03:51,364 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:03:51,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:03:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:51,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:03:51,487 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:03:51,721 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:03:51,722 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:03:51,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453296004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:03:51,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:03:51,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-27 20:03:51,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238467573] [2024-11-27 20:03:51,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:03:51,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:03:51,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:51,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:03:51,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:03:51,724 INFO L87 Difference]: Start difference. First operand 120 states and 151 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-27 20:03:51,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:03:51,910 INFO L93 Difference]: Finished difference Result 123 states and 155 transitions. [2024-11-27 20:03:51,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:03:51,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 22 [2024-11-27 20:03:51,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:03:51,915 INFO L225 Difference]: With dead ends: 123 [2024-11-27 20:03:51,915 INFO L226 Difference]: Without dead ends: 122 [2024-11-27 20:03:51,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:03:51,916 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 80 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:03:51,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 74 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:03:51,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-27 20:03:51,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2024-11-27 20:03:51,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 91 states have (on average 1.5164835164835164) internal successors, (138), 111 states have internal predecessors, (138), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:03:51,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 150 transitions. [2024-11-27 20:03:51,944 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 150 transitions. Word has length 22 [2024-11-27 20:03:51,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:03:51,944 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 150 transitions. [2024-11-27 20:03:51,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-27 20:03:51,944 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 150 transitions. [2024-11-27 20:03:51,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-27 20:03:51,945 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:03:51,947 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:03:51,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:03:52,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-27 20:03:52,152 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:03:52,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:52,152 INFO L85 PathProgramCache]: Analyzing trace with hash -204146584, now seen corresponding path program 1 times [2024-11-27 20:03:52,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:52,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360048158] [2024-11-27 20:03:52,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:52,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:03:52,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1579220490] [2024-11-27 20:03:52,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:52,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:03:52,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:03:52,179 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:03:52,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:03:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:52,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:03:52,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:03:52,399 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:03:52,399 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:03:52,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:52,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360048158] [2024-11-27 20:03:52,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:03:52,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579220490] [2024-11-27 20:03:52,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579220490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:03:52,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:03:52,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:03:52,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779386888] [2024-11-27 20:03:52,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:03:52,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:03:52,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:52,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:03:52,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:03:52,403 INFO L87 Difference]: Start difference. First operand 120 states and 150 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-27 20:03:52,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:03:52,548 INFO L93 Difference]: Finished difference Result 121 states and 150 transitions. [2024-11-27 20:03:52,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:03:52,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 23 [2024-11-27 20:03:52,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:03:52,550 INFO L225 Difference]: With dead ends: 121 [2024-11-27 20:03:52,550 INFO L226 Difference]: Without dead ends: 120 [2024-11-27 20:03:52,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:03:52,551 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 73 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:03:52,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 79 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:03:52,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-27 20:03:52,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-27 20:03:52,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 91 states have (on average 1.5054945054945055) internal successors, (137), 111 states have internal predecessors, (137), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:03:52,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 149 transitions. [2024-11-27 20:03:52,565 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 149 transitions. Word has length 23 [2024-11-27 20:03:52,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:03:52,566 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 149 transitions. [2024-11-27 20:03:52,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-27 20:03:52,566 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 149 transitions. [2024-11-27 20:03:52,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-27 20:03:52,567 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:03:52,568 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 20:03:52,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 20:03:52,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:03:52,772 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:03:52,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:52,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1383870268, now seen corresponding path program 1 times [2024-11-27 20:03:52,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:52,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206975673] [2024-11-27 20:03:52,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:52,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:52,918 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:03:52,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:52,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206975673] [2024-11-27 20:03:52,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206975673] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:03:52,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696559332] [2024-11-27 20:03:52,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:52,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:03:52,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:03:52,922 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:03:52,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:03:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:52,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:03:52,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:03:53,078 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:03:53,079 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:03:53,254 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:03:53,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696559332] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:03:53,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:03:53,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-27 20:03:53,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202922337] [2024-11-27 20:03:53,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:03:53,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:03:53,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:53,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:03:53,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:03:53,257 INFO L87 Difference]: Start difference. First operand 120 states and 149 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-27 20:03:53,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:03:53,472 INFO L93 Difference]: Finished difference Result 190 states and 234 transitions. [2024-11-27 20:03:53,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:03:53,472 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 35 [2024-11-27 20:03:53,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:03:53,474 INFO L225 Difference]: With dead ends: 190 [2024-11-27 20:03:53,474 INFO L226 Difference]: Without dead ends: 188 [2024-11-27 20:03:53,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:03:53,475 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 265 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:03:53,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 279 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:03:53,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-27 20:03:53,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 167. [2024-11-27 20:03:53,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 136 states have (on average 1.5073529411764706) internal successors, (205), 156 states have internal predecessors, (205), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-27 20:03:53,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 221 transitions. [2024-11-27 20:03:53,496 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 221 transitions. Word has length 35 [2024-11-27 20:03:53,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:03:53,496 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 221 transitions. [2024-11-27 20:03:53,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-27 20:03:53,496 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 221 transitions. [2024-11-27 20:03:53,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-27 20:03:53,497 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:03:53,498 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 20:03:53,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 20:03:53,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-27 20:03:53,702 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:03:53,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:53,702 INFO L85 PathProgramCache]: Analyzing trace with hash -49694560, now seen corresponding path program 1 times [2024-11-27 20:03:53,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:53,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427231663] [2024-11-27 20:03:53,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:53,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:53,772 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:03:53,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:53,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427231663] [2024-11-27 20:03:53,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427231663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:03:53,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:03:53,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:03:53,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025165573] [2024-11-27 20:03:53,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:03:53,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:03:53,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:53,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:03:53,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:03:53,774 INFO L87 Difference]: Start difference. First operand 167 states and 221 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:03:53,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:03:53,834 INFO L93 Difference]: Finished difference Result 177 states and 230 transitions. [2024-11-27 20:03:53,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:03:53,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2024-11-27 20:03:53,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:03:53,837 INFO L225 Difference]: With dead ends: 177 [2024-11-27 20:03:53,837 INFO L226 Difference]: Without dead ends: 175 [2024-11-27 20:03:53,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:03:53,840 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 78 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:03:53,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 78 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:03:53,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-27 20:03:53,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 165. [2024-11-27 20:03:53,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 136 states have (on average 1.4705882352941178) internal successors, (200), 154 states have internal predecessors, (200), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-27 20:03:53,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 216 transitions. [2024-11-27 20:03:53,879 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 216 transitions. Word has length 36 [2024-11-27 20:03:53,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:03:53,879 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 216 transitions. [2024-11-27 20:03:53,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:03:53,880 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 216 transitions. [2024-11-27 20:03:53,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-27 20:03:53,881 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:03:53,881 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 20:03:53,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:03:53,881 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:03:53,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:53,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1313118953, now seen corresponding path program 1 times [2024-11-27 20:03:53,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:53,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708340050] [2024-11-27 20:03:53,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:53,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:54,024 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:03:54,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:54,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708340050] [2024-11-27 20:03:54,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708340050] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:03:54,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671171771] [2024-11-27 20:03:54,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:54,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:03:54,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:03:54,030 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:03:54,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:03:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:54,097 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:03:54,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:03:54,191 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:03:54,191 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:03:54,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671171771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:03:54,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:03:54,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-27 20:03:54,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959106469] [2024-11-27 20:03:54,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:03:54,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:03:54,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:54,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:03:54,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:03:54,194 INFO L87 Difference]: Start difference. First operand 165 states and 216 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:03:54,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:03:54,294 INFO L93 Difference]: Finished difference Result 175 states and 225 transitions. [2024-11-27 20:03:54,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:03:54,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2024-11-27 20:03:54,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:03:54,301 INFO L225 Difference]: With dead ends: 175 [2024-11-27 20:03:54,301 INFO L226 Difference]: Without dead ends: 174 [2024-11-27 20:03:54,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:03:54,303 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 40 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:03:54,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 187 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:03:54,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-27 20:03:54,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 164. [2024-11-27 20:03:54,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 136 states have (on average 1.4338235294117647) internal successors, (195), 153 states have internal predecessors, (195), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-27 20:03:54,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 211 transitions. [2024-11-27 20:03:54,324 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 211 transitions. Word has length 39 [2024-11-27 20:03:54,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:03:54,325 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 211 transitions. [2024-11-27 20:03:54,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:03:54,325 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 211 transitions. [2024-11-27 20:03:54,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-27 20:03:54,326 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:03:54,327 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 20:03:54,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 20:03:54,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-27 20:03:54,528 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:03:54,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:54,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1227112888, now seen corresponding path program 1 times [2024-11-27 20:03:54,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:54,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767954355] [2024-11-27 20:03:54,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:54,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:03:54,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1113274999] [2024-11-27 20:03:54,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:54,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:03:54,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:03:54,570 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:03:54,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:03:54,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:54,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:03:54,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:03:55,075 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:03:55,075 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:03:55,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:55,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767954355] [2024-11-27 20:03:55,504 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:03:55,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113274999] [2024-11-27 20:03:55,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113274999] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:03:55,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:03:55,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-27 20:03:55,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853474223] [2024-11-27 20:03:55,505 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:03:55,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:03:55,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:55,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:03:55,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:03:55,507 INFO L87 Difference]: Start difference. First operand 164 states and 211 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:03:55,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:03:55,820 INFO L93 Difference]: Finished difference Result 171 states and 214 transitions. [2024-11-27 20:03:55,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:03:55,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2024-11-27 20:03:55,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:03:55,822 INFO L225 Difference]: With dead ends: 171 [2024-11-27 20:03:55,822 INFO L226 Difference]: Without dead ends: 164 [2024-11-27 20:03:55,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:03:55,824 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 55 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:03:55,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 70 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:03:55,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-27 20:03:55,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 160. [2024-11-27 20:03:55,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 137 states have (on average 1.3284671532846715) internal successors, (182), 149 states have internal predecessors, (182), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-27 20:03:55,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 198 transitions. [2024-11-27 20:03:55,849 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 198 transitions. Word has length 41 [2024-11-27 20:03:55,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:03:55,849 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 198 transitions. [2024-11-27 20:03:55,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:03:55,850 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 198 transitions. [2024-11-27 20:03:55,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-27 20:03:55,855 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:03:55,855 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 20:03:55,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 20:03:56,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-27 20:03:56,057 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:03:56,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:56,058 INFO L85 PathProgramCache]: Analyzing trace with hash -614206083, now seen corresponding path program 1 times [2024-11-27 20:03:56,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:56,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322399202] [2024-11-27 20:03:56,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:56,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:03:56,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1998728272] [2024-11-27 20:03:56,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:56,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:03:56,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:03:56,092 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:03:56,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:03:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:56,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:03:56,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:03:56,569 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:03:56,569 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:03:57,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:57,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322399202] [2024-11-27 20:03:57,079 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:03:57,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998728272] [2024-11-27 20:03:57,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998728272] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:03:57,079 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:03:57,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-27 20:03:57,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494017492] [2024-11-27 20:03:57,080 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:03:57,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:03:57,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:57,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:03:57,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:03:57,083 INFO L87 Difference]: Start difference. First operand 160 states and 198 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:03:57,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:03:57,378 INFO L93 Difference]: Finished difference Result 216 states and 266 transitions. [2024-11-27 20:03:57,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:03:57,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2024-11-27 20:03:57,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:03:57,381 INFO L225 Difference]: With dead ends: 216 [2024-11-27 20:03:57,382 INFO L226 Difference]: Without dead ends: 211 [2024-11-27 20:03:57,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:03:57,385 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 104 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:03:57,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 116 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:03:57,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-27 20:03:57,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 203. [2024-11-27 20:03:57,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 178 states have (on average 1.3089887640449438) internal successors, (233), 190 states have internal predecessors, (233), 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) [2024-11-27 20:03:57,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 253 transitions. [2024-11-27 20:03:57,419 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 253 transitions. Word has length 42 [2024-11-27 20:03:57,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:03:57,421 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 253 transitions. [2024-11-27 20:03:57,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:03:57,422 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 253 transitions. [2024-11-27 20:03:57,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-27 20:03:57,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:03:57,424 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 20:03:57,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-27 20:03:57,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-27 20:03:57,626 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:03:57,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:57,627 INFO L85 PathProgramCache]: Analyzing trace with hash 324054416, now seen corresponding path program 1 times [2024-11-27 20:03:57,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:57,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518468578] [2024-11-27 20:03:57,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:57,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:57,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:57,859 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:03:57,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:57,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518468578] [2024-11-27 20:03:57,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518468578] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:03:57,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608304145] [2024-11-27 20:03:57,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:57,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:03:57,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:03:57,864 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:03:57,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:03:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:57,936 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:03:57,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:03:58,164 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:03:58,164 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:03:58,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608304145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:03:58,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:03:58,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-27 20:03:58,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929654830] [2024-11-27 20:03:58,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:03:58,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:03:58,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:58,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:03:58,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:03:58,167 INFO L87 Difference]: Start difference. First operand 203 states and 253 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:03:58,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:03:58,316 INFO L93 Difference]: Finished difference Result 203 states and 253 transitions. [2024-11-27 20:03:58,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:03:58,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 43 [2024-11-27 20:03:58,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:03:58,318 INFO L225 Difference]: With dead ends: 203 [2024-11-27 20:03:58,318 INFO L226 Difference]: Without dead ends: 201 [2024-11-27 20:03:58,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:03:58,319 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 31 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:03:58,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 79 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:03:58,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-27 20:03:58,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 198. [2024-11-27 20:03:58,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 175 states have (on average 1.2971428571428572) internal successors, (227), 185 states have internal predecessors, (227), 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) [2024-11-27 20:03:58,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 247 transitions. [2024-11-27 20:03:58,349 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 247 transitions. Word has length 43 [2024-11-27 20:03:58,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:03:58,349 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 247 transitions. [2024-11-27 20:03:58,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:03:58,350 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 247 transitions. [2024-11-27 20:03:58,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-27 20:03:58,352 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:03:58,353 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 20:03:58,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-27 20:03:58,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-27 20:03:58,554 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:03:58,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:58,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1455752361, now seen corresponding path program 1 times [2024-11-27 20:03:58,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:58,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261766193] [2024-11-27 20:03:58,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:58,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:58,841 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:03:58,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:58,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261766193] [2024-11-27 20:03:58,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261766193] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:03:58,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599255554] [2024-11-27 20:03:58,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:58,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:03:58,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:03:58,848 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:03:58,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 20:03:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:58,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:03:58,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:03:59,077 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:03:59,078 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:03:59,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599255554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:03:59,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:03:59,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2024-11-27 20:03:59,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559365497] [2024-11-27 20:03:59,251 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:03:59,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:03:59,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:59,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:03:59,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:03:59,253 INFO L87 Difference]: Start difference. First operand 198 states and 247 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 20:03:59,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:03:59,485 INFO L93 Difference]: Finished difference Result 206 states and 251 transitions. [2024-11-27 20:03:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:03:59,486 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2024-11-27 20:03:59,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:03:59,487 INFO L225 Difference]: With dead ends: 206 [2024-11-27 20:03:59,487 INFO L226 Difference]: Without dead ends: 198 [2024-11-27 20:03:59,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:03:59,488 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 26 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:03:59,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 140 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:03:59,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-27 20:03:59,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2024-11-27 20:03:59,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 175 states have (on average 1.2685714285714285) internal successors, (222), 185 states have internal predecessors, (222), 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) [2024-11-27 20:03:59,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 242 transitions. [2024-11-27 20:03:59,511 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 242 transitions. Word has length 44 [2024-11-27 20:03:59,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:03:59,511 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 242 transitions. [2024-11-27 20:03:59,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 20:03:59,511 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 242 transitions. [2024-11-27 20:03:59,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-27 20:03:59,515 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:03:59,515 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 20:03:59,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-27 20:03:59,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-27 20:03:59,716 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:03:59,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:59,718 INFO L85 PathProgramCache]: Analyzing trace with hash -2116317006, now seen corresponding path program 1 times [2024-11-27 20:03:59,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:03:59,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920445040] [2024-11-27 20:03:59,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:59,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:03:59,830 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:03:59,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:03:59,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920445040] [2024-11-27 20:03:59,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920445040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:03:59,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:03:59,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:03:59,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427221307] [2024-11-27 20:03:59,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:03:59,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:03:59,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:03:59,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:03:59,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:03:59,834 INFO L87 Difference]: Start difference. First operand 198 states and 242 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:04:00,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:00,021 INFO L93 Difference]: Finished difference Result 205 states and 249 transitions. [2024-11-27 20:04:00,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:04:00,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2024-11-27 20:04:00,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:00,024 INFO L225 Difference]: With dead ends: 205 [2024-11-27 20:04:00,024 INFO L226 Difference]: Without dead ends: 204 [2024-11-27 20:04:00,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:04:00,027 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 4 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:00,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 60 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:04:00,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-27 20:04:00,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 198. [2024-11-27 20:04:00,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 175 states have (on average 1.2457142857142858) internal successors, (218), 185 states have internal predecessors, (218), 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) [2024-11-27 20:04:00,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 238 transitions. [2024-11-27 20:04:00,050 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 238 transitions. Word has length 45 [2024-11-27 20:04:00,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:00,051 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 238 transitions. [2024-11-27 20:04:00,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:04:00,052 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 238 transitions. [2024-11-27 20:04:00,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-27 20:04:00,052 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:00,052 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 20:04:00,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 20:04:00,053 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:00,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:00,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1252683012, now seen corresponding path program 1 times [2024-11-27 20:04:00,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:00,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048966773] [2024-11-27 20:04:00,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:00,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:00,350 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:04:00,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:00,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048966773] [2024-11-27 20:04:00,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048966773] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:00,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537907217] [2024-11-27 20:04:00,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:00,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:00,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:00,353 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:00,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 20:04:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:00,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:04:00,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:00,641 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:04:00,641 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:01,147 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:04:01,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537907217] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:04:01,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:04:01,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-27 20:04:01,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410161416] [2024-11-27 20:04:01,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:04:01,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 20:04:01,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:01,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 20:04:01,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:04:01,150 INFO L87 Difference]: Start difference. First operand 198 states and 238 transitions. Second operand has 17 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 20:04:01,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:01,893 INFO L93 Difference]: Finished difference Result 208 states and 245 transitions. [2024-11-27 20:04:01,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:04:01,894 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45 [2024-11-27 20:04:01,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:01,896 INFO L225 Difference]: With dead ends: 208 [2024-11-27 20:04:01,897 INFO L226 Difference]: Without dead ends: 205 [2024-11-27 20:04:01,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 77 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-11-27 20:04:01,898 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 178 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:01,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 202 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:04:01,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-27 20:04:01,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 166. [2024-11-27 20:04:01,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 147 states have (on average 1.2244897959183674) internal successors, (180), 154 states have internal predecessors, (180), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 20:04:01,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 198 transitions. [2024-11-27 20:04:01,920 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 198 transitions. Word has length 45 [2024-11-27 20:04:01,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:01,920 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 198 transitions. [2024-11-27 20:04:01,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 20:04:01,921 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 198 transitions. [2024-11-27 20:04:01,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-27 20:04:01,921 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:01,921 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 20:04:01,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 20:04:02,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-27 20:04:02,122 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:02,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:02,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1181317685, now seen corresponding path program 1 times [2024-11-27 20:04:02,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:02,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948545079] [2024-11-27 20:04:02,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:02,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:02,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:02,228 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:04:02,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:02,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948545079] [2024-11-27 20:04:02,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948545079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:04:02,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:04:02,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:04:02,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932811697] [2024-11-27 20:04:02,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:04:02,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:04:02,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:02,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:04:02,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:04:02,231 INFO L87 Difference]: Start difference. First operand 166 states and 198 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:04:02,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:02,453 INFO L93 Difference]: Finished difference Result 173 states and 205 transitions. [2024-11-27 20:04:02,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:04:02,454 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), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2024-11-27 20:04:02,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:02,456 INFO L225 Difference]: With dead ends: 173 [2024-11-27 20:04:02,456 INFO L226 Difference]: Without dead ends: 172 [2024-11-27 20:04:02,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:04:02,457 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 4 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:02,458 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 72 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:04:02,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-27 20:04:02,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 166. [2024-11-27 20:04:02,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 147 states have (on average 1.1972789115646258) internal successors, (176), 154 states have internal predecessors, (176), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 20:04:02,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 194 transitions. [2024-11-27 20:04:02,482 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 194 transitions. Word has length 46 [2024-11-27 20:04:02,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:02,482 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 194 transitions. [2024-11-27 20:04:02,482 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), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:04:02,483 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 194 transitions. [2024-11-27 20:04:02,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-27 20:04:02,483 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:02,484 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 20:04:02,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 20:04:02,484 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:02,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:02,485 INFO L85 PathProgramCache]: Analyzing trace with hash -178467647, now seen corresponding path program 1 times [2024-11-27 20:04:02,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:02,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189576016] [2024-11-27 20:04:02,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:02,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:04:02,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1231754766] [2024-11-27 20:04:02,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:02,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:02,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:02,504 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:02,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 20:04:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:02,570 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:04:02,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:02,909 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:04:02,909 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:03,101 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:04:03,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:03,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189576016] [2024-11-27 20:04:03,102 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:04:03,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231754766] [2024-11-27 20:04:03,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231754766] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:04:03,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:04:03,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 20:04:03,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962573288] [2024-11-27 20:04:03,103 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:04:03,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:04:03,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:03,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:04:03,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:04:03,105 INFO L87 Difference]: Start difference. First operand 166 states and 194 transitions. Second operand has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 20:04:03,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:03,541 INFO L93 Difference]: Finished difference Result 273 states and 319 transitions. [2024-11-27 20:04:03,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:04:03,543 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 46 [2024-11-27 20:04:03,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:03,544 INFO L225 Difference]: With dead ends: 273 [2024-11-27 20:04:03,545 INFO L226 Difference]: Without dead ends: 190 [2024-11-27 20:04:03,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:04:03,547 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 93 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:03,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 121 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:04:03,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-27 20:04:03,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 184. [2024-11-27 20:04:03,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 165 states have (on average 1.1636363636363636) internal successors, (192), 171 states have internal predecessors, (192), 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) [2024-11-27 20:04:03,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 212 transitions. [2024-11-27 20:04:03,566 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 212 transitions. Word has length 46 [2024-11-27 20:04:03,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:03,567 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 212 transitions. [2024-11-27 20:04:03,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 20:04:03,567 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 212 transitions. [2024-11-27 20:04:03,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-27 20:04:03,568 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:03,568 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:03,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-27 20:04:03,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:03,769 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:03,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:03,769 INFO L85 PathProgramCache]: Analyzing trace with hash -750311292, now seen corresponding path program 2 times [2024-11-27 20:04:03,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:03,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427549534] [2024-11-27 20:04:03,770 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:04:03,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:03,792 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:04:03,792 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:04:03,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [500019988] [2024-11-27 20:04:03,794 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:04:03,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:03,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:03,797 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:03,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 20:04:03,869 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:04:03,870 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:03,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:04:03,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:04,136 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:04:04,136 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:04,713 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:04:04,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:04,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427549534] [2024-11-27 20:04:04,714 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:04:04,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500019988] [2024-11-27 20:04:04,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500019988] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:04:04,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:04:04,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-27 20:04:04,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690700553] [2024-11-27 20:04:04,715 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:04:04,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:04:04,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:04,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:04:04,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:04:04,717 INFO L87 Difference]: Start difference. First operand 184 states and 212 transitions. Second operand has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 10 states have internal predecessors, (94), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-27 20:04:05,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:05,513 INFO L93 Difference]: Finished difference Result 387 states and 459 transitions. [2024-11-27 20:04:05,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:04:05,514 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 10 states have internal predecessors, (94), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 65 [2024-11-27 20:04:05,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:05,517 INFO L225 Difference]: With dead ends: 387 [2024-11-27 20:04:05,517 INFO L226 Difference]: Without dead ends: 376 [2024-11-27 20:04:05,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:04:05,518 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 158 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:05,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 334 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:04:05,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-27 20:04:05,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 354. [2024-11-27 20:04:05,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 327 states have (on average 1.1681957186544343) internal successors, (382), 333 states have internal predecessors, (382), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-27 20:04:05,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 418 transitions. [2024-11-27 20:04:05,556 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 418 transitions. Word has length 65 [2024-11-27 20:04:05,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:05,556 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 418 transitions. [2024-11-27 20:04:05,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 10 states have internal predecessors, (94), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-27 20:04:05,556 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 418 transitions. [2024-11-27 20:04:05,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-27 20:04:05,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:05,557 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 20:04:05,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-27 20:04:05,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:05,762 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:05,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:05,762 INFO L85 PathProgramCache]: Analyzing trace with hash 287621926, now seen corresponding path program 2 times [2024-11-27 20:04:05,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:05,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049284151] [2024-11-27 20:04:05,763 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:04:05,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:05,788 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:04:05,788 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:06,051 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 20:04:06,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:06,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049284151] [2024-11-27 20:04:06,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049284151] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:06,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495608269] [2024-11-27 20:04:06,052 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:04:06,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:06,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:06,055 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:06,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 20:04:06,126 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:04:06,127 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:06,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:04:06,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:06,420 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:04:06,421 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:06,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495608269] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:06,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:04:06,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 10 [2024-11-27 20:04:06,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623989072] [2024-11-27 20:04:06,592 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:04:06,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:04:06,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:06,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:04:06,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:04:06,594 INFO L87 Difference]: Start difference. First operand 354 states and 418 transitions. Second operand has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-27 20:04:07,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:07,028 INFO L93 Difference]: Finished difference Result 383 states and 450 transitions. [2024-11-27 20:04:07,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:04:07,029 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 67 [2024-11-27 20:04:07,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:07,031 INFO L225 Difference]: With dead ends: 383 [2024-11-27 20:04:07,032 INFO L226 Difference]: Without dead ends: 375 [2024-11-27 20:04:07,032 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:04:07,033 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 26 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:07,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 178 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:04:07,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-27 20:04:07,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2024-11-27 20:04:07,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 345 states have (on average 1.1623188405797102) internal successors, (401), 351 states have internal predecessors, (401), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-27 20:04:07,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 439 transitions. [2024-11-27 20:04:07,070 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 439 transitions. Word has length 67 [2024-11-27 20:04:07,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:07,070 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 439 transitions. [2024-11-27 20:04:07,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-27 20:04:07,070 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 439 transitions. [2024-11-27 20:04:07,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-27 20:04:07,072 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:07,072 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:07,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-27 20:04:07,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:07,277 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:07,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:07,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1353844745, now seen corresponding path program 3 times [2024-11-27 20:04:07,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:07,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113989776] [2024-11-27 20:04:07,278 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:04:07,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:07,309 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 20:04:07,309 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:07,548 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 6 proven. 81 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 20:04:07,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:07,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113989776] [2024-11-27 20:04:07,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113989776] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:07,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377735485] [2024-11-27 20:04:07,549 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:04:07,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:07,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:07,552 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:07,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 20:04:07,617 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 20:04:07,617 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:07,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:04:07,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:07,817 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-27 20:04:07,817 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:04:07,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377735485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:04:07,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:04:07,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-27 20:04:07,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783532576] [2024-11-27 20:04:07,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:04:07,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:04:07,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:07,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:04:07,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:04:07,820 INFO L87 Difference]: Start difference. First operand 373 states and 439 transitions. Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:04:07,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:07,945 INFO L93 Difference]: Finished difference Result 381 states and 443 transitions. [2024-11-27 20:04:07,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:04:07,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 90 [2024-11-27 20:04:07,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:07,948 INFO L225 Difference]: With dead ends: 381 [2024-11-27 20:04:07,948 INFO L226 Difference]: Without dead ends: 374 [2024-11-27 20:04:07,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:04:07,951 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 30 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:07,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 79 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:04:07,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-27 20:04:07,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 370. [2024-11-27 20:04:07,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 342 states have (on average 1.1491228070175439) internal successors, (393), 348 states have internal predecessors, (393), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-27 20:04:07,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 431 transitions. [2024-11-27 20:04:07,986 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 431 transitions. Word has length 90 [2024-11-27 20:04:07,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:07,986 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 431 transitions. [2024-11-27 20:04:07,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:04:07,987 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 431 transitions. [2024-11-27 20:04:07,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-27 20:04:07,988 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:07,988 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:08,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-27 20:04:08,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:08,189 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:08,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:08,190 INFO L85 PathProgramCache]: Analyzing trace with hash 573888211, now seen corresponding path program 1 times [2024-11-27 20:04:08,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:08,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333180380] [2024-11-27 20:04:08,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:08,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:08,451 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 20:04:08,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:08,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333180380] [2024-11-27 20:04:08,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333180380] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:08,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780828148] [2024-11-27 20:04:08,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:08,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:08,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:08,455 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:08,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-27 20:04:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:08,531 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:04:08,534 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:08,714 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 20:04:08,715 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:09,105 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 20:04:09,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780828148] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:04:09,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:04:09,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2024-11-27 20:04:09,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808645571] [2024-11-27 20:04:09,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:04:09,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 20:04:09,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:09,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 20:04:09,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:04:09,109 INFO L87 Difference]: Start difference. First operand 370 states and 431 transitions. Second operand has 15 states, 14 states have (on average 9.928571428571429) internal successors, (139), 15 states have internal predecessors, (139), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-27 20:04:10,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:10,219 INFO L93 Difference]: Finished difference Result 1075 states and 1268 transitions. [2024-11-27 20:04:10,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-27 20:04:10,220 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.928571428571429) internal successors, (139), 15 states have internal predecessors, (139), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 90 [2024-11-27 20:04:10,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:10,226 INFO L225 Difference]: With dead ends: 1075 [2024-11-27 20:04:10,226 INFO L226 Difference]: Without dead ends: 1045 [2024-11-27 20:04:10,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=258, Invalid=612, Unknown=0, NotChecked=0, Total=870 [2024-11-27 20:04:10,229 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 165 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:10,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 236 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:04:10,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2024-11-27 20:04:10,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 973. [2024-11-27 20:04:10,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 919 states have (on average 1.11860718171926) internal successors, (1028), 925 states have internal predecessors, (1028), 45 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-27 20:04:10,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1118 transitions. [2024-11-27 20:04:10,357 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1118 transitions. Word has length 90 [2024-11-27 20:04:10,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:10,358 INFO L471 AbstractCegarLoop]: Abstraction has 973 states and 1118 transitions. [2024-11-27 20:04:10,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.928571428571429) internal successors, (139), 15 states have internal predecessors, (139), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-27 20:04:10,358 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1118 transitions. [2024-11-27 20:04:10,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-27 20:04:10,360 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:10,360 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:10,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-27 20:04:10,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-27 20:04:10,565 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:10,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:10,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1058690043, now seen corresponding path program 1 times [2024-11-27 20:04:10,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:10,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919170457] [2024-11-27 20:04:10,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:10,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:10,724 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 20:04:10,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:10,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919170457] [2024-11-27 20:04:10,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919170457] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:10,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320519699] [2024-11-27 20:04:10,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:10,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:10,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:10,728 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:10,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-27 20:04:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:10,805 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:04:10,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:10,965 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 20:04:10,966 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:11,173 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 20:04:11,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320519699] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:04:11,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:04:11,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-27 20:04:11,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215302160] [2024-11-27 20:04:11,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:04:11,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:04:11,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:11,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:04:11,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:04:11,176 INFO L87 Difference]: Start difference. First operand 973 states and 1118 transitions. Second operand has 11 states, 10 states have (on average 16.1) internal successors, (161), 11 states have internal predecessors, (161), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-27 20:04:11,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:11,586 INFO L93 Difference]: Finished difference Result 1831 states and 2195 transitions. [2024-11-27 20:04:11,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:04:11,587 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.1) internal successors, (161), 11 states have internal predecessors, (161), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 100 [2024-11-27 20:04:11,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:11,596 INFO L225 Difference]: With dead ends: 1831 [2024-11-27 20:04:11,597 INFO L226 Difference]: Without dead ends: 1829 [2024-11-27 20:04:11,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:04:11,598 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 72 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:11,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 175 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:04:11,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2024-11-27 20:04:11,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1801. [2024-11-27 20:04:11,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1706 states have (on average 1.104337631887456) internal successors, (1884), 1711 states have internal predecessors, (1884), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-27 20:04:11,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2058 transitions. [2024-11-27 20:04:11,774 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2058 transitions. Word has length 100 [2024-11-27 20:04:11,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:11,774 INFO L471 AbstractCegarLoop]: Abstraction has 1801 states and 2058 transitions. [2024-11-27 20:04:11,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.1) internal successors, (161), 11 states have internal predecessors, (161), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-27 20:04:11,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2058 transitions. [2024-11-27 20:04:11,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-27 20:04:11,776 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:11,777 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:11,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-27 20:04:11,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:11,981 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:11,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:11,981 INFO L85 PathProgramCache]: Analyzing trace with hash 3666481, now seen corresponding path program 1 times [2024-11-27 20:04:11,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:11,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215778948] [2024-11-27 20:04:11,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:11,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:12,116 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-27 20:04:12,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:12,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215778948] [2024-11-27 20:04:12,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215778948] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:12,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188404772] [2024-11-27 20:04:12,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:12,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:12,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:12,120 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:12,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-27 20:04:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:12,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:04:12,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:12,428 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 78 proven. 30 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-27 20:04:12,429 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:12,639 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 66 proven. 30 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 20:04:12,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188404772] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:04:12,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:04:12,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 10 [2024-11-27 20:04:12,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442394860] [2024-11-27 20:04:12,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:04:12,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:04:12,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:12,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:04:12,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:04:12,642 INFO L87 Difference]: Start difference. First operand 1801 states and 2058 transitions. Second operand has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-27 20:04:13,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:13,539 INFO L93 Difference]: Finished difference Result 2895 states and 3347 transitions. [2024-11-27 20:04:13,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 20:04:13,540 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) Word has length 103 [2024-11-27 20:04:13,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:13,554 INFO L225 Difference]: With dead ends: 2895 [2024-11-27 20:04:13,554 INFO L226 Difference]: Without dead ends: 2342 [2024-11-27 20:04:13,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 197 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2024-11-27 20:04:13,560 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 147 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:13,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 264 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:04:13,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states. [2024-11-27 20:04:13,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 1944. [2024-11-27 20:04:13,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1841 states have (on average 1.102661596958175) internal successors, (2030), 1846 states have internal predecessors, (2030), 95 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-27 20:04:13,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2220 transitions. [2024-11-27 20:04:13,837 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2220 transitions. Word has length 103 [2024-11-27 20:04:13,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:13,838 INFO L471 AbstractCegarLoop]: Abstraction has 1944 states and 2220 transitions. [2024-11-27 20:04:13,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-27 20:04:13,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2220 transitions. [2024-11-27 20:04:13,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-27 20:04:13,847 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:13,847 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:13,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-27 20:04:14,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:14,048 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:14,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:14,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1196991483, now seen corresponding path program 1 times [2024-11-27 20:04:14,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:14,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449748739] [2024-11-27 20:04:14,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:14,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:14,189 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 20:04:14,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:14,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449748739] [2024-11-27 20:04:14,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449748739] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:14,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636347790] [2024-11-27 20:04:14,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:14,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:14,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:14,193 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:14,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-27 20:04:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:14,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:04:14,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:14,424 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 20:04:14,424 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:14,651 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 20:04:14,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636347790] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:04:14,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:04:14,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-27 20:04:14,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005879302] [2024-11-27 20:04:14,652 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:04:14,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:04:14,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:14,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:04:14,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:04:14,655 INFO L87 Difference]: Start difference. First operand 1944 states and 2220 transitions. Second operand has 11 states, 10 states have (on average 16.7) internal successors, (167), 11 states have internal predecessors, (167), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-27 20:04:15,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:15,107 INFO L93 Difference]: Finished difference Result 2883 states and 3341 transitions. [2024-11-27 20:04:15,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:04:15,108 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.7) internal successors, (167), 11 states have internal predecessors, (167), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 103 [2024-11-27 20:04:15,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:15,122 INFO L225 Difference]: With dead ends: 2883 [2024-11-27 20:04:15,123 INFO L226 Difference]: Without dead ends: 2882 [2024-11-27 20:04:15,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:04:15,125 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 110 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:15,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 245 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:04:15,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2882 states. [2024-11-27 20:04:15,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2882 to 2834. [2024-11-27 20:04:15,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2834 states, 2684 states have (on average 1.119225037257824) internal successors, (3004), 2689 states have internal predecessors, (3004), 142 states have call successors, (142), 2 states have call predecessors, (142), 2 states have return successors, (142), 142 states have call predecessors, (142), 142 states have call successors, (142) [2024-11-27 20:04:15,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 3288 transitions. [2024-11-27 20:04:15,398 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 3288 transitions. Word has length 103 [2024-11-27 20:04:15,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:15,398 INFO L471 AbstractCegarLoop]: Abstraction has 2834 states and 3288 transitions. [2024-11-27 20:04:15,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.7) internal successors, (167), 11 states have internal predecessors, (167), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-27 20:04:15,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 3288 transitions. [2024-11-27 20:04:15,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-27 20:04:15,402 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:15,402 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:15,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-27 20:04:15,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-27 20:04:15,604 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:15,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:15,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1075382349, now seen corresponding path program 1 times [2024-11-27 20:04:15,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:15,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120254301] [2024-11-27 20:04:15,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:15,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:15,823 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 68 proven. 128 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-27 20:04:15,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:15,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120254301] [2024-11-27 20:04:15,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120254301] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:15,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56286943] [2024-11-27 20:04:15,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:15,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:15,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:15,827 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:15,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-27 20:04:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:15,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:04:15,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:16,233 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 83 proven. 113 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-27 20:04:16,233 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:16,486 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 83 proven. 113 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-27 20:04:16,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56286943] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:04:16,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:04:16,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2024-11-27 20:04:16,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114317999] [2024-11-27 20:04:16,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:04:16,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:04:16,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:16,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:04:16,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:04:16,489 INFO L87 Difference]: Start difference. First operand 2834 states and 3288 transitions. Second operand has 12 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-27 20:04:17,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:17,217 INFO L93 Difference]: Finished difference Result 5701 states and 6722 transitions. [2024-11-27 20:04:17,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:04:17,218 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 134 [2024-11-27 20:04:17,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:17,239 INFO L225 Difference]: With dead ends: 5701 [2024-11-27 20:04:17,239 INFO L226 Difference]: Without dead ends: 4282 [2024-11-27 20:04:17,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 259 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:04:17,247 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 91 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:17,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 358 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:04:17,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4282 states. [2024-11-27 20:04:17,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4282 to 3102. [2024-11-27 20:04:17,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3102 states, 2938 states have (on average 1.11572498298162) internal successors, (3278), 2943 states have internal predecessors, (3278), 156 states have call successors, (156), 2 states have call predecessors, (156), 2 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-27 20:04:17,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3102 states to 3102 states and 3590 transitions. [2024-11-27 20:04:17,551 INFO L78 Accepts]: Start accepts. Automaton has 3102 states and 3590 transitions. Word has length 134 [2024-11-27 20:04:17,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:17,552 INFO L471 AbstractCegarLoop]: Abstraction has 3102 states and 3590 transitions. [2024-11-27 20:04:17,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-27 20:04:17,553 INFO L276 IsEmpty]: Start isEmpty. Operand 3102 states and 3590 transitions. [2024-11-27 20:04:17,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-27 20:04:17,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:17,558 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:17,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-27 20:04:17,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-27 20:04:17,763 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:17,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:17,764 INFO L85 PathProgramCache]: Analyzing trace with hash 775557188, now seen corresponding path program 2 times [2024-11-27 20:04:17,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:17,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807531871] [2024-11-27 20:04:17,764 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:04:17,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:17,802 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:04:17,803 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:04:17,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [183471736] [2024-11-27 20:04:17,805 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:04:17,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:17,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:17,808 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:17,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-27 20:04:17,920 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:04:17,920 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:17,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:04:17,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:18,497 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-27 20:04:18,498 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:23,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:23,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807531871] [2024-11-27 20:04:23,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:04:23,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183471736] [2024-11-27 20:04:23,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183471736] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:23,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:04:23,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-27 20:04:23,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816423716] [2024-11-27 20:04:23,046 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:04:23,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:04:23,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:23,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:04:23,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=92, Unknown=1, NotChecked=0, Total=132 [2024-11-27 20:04:23,047 INFO L87 Difference]: Start difference. First operand 3102 states and 3590 transitions. Second operand has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 8 states have internal predecessors, (92), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-27 20:04:23,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:23,576 INFO L93 Difference]: Finished difference Result 3389 states and 3929 transitions. [2024-11-27 20:04:23,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:04:23,576 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 8 states have internal predecessors, (92), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 157 [2024-11-27 20:04:23,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:23,589 INFO L225 Difference]: With dead ends: 3389 [2024-11-27 20:04:23,589 INFO L226 Difference]: Without dead ends: 3385 [2024-11-27 20:04:23,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=39, Invalid=92, Unknown=1, NotChecked=0, Total=132 [2024-11-27 20:04:23,591 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 27 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:23,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 235 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:04:23,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3385 states. [2024-11-27 20:04:23,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3385 to 3121. [2024-11-27 20:04:23,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 2956 states have (on average 1.1160351826792962) internal successors, (3299), 2961 states have internal predecessors, (3299), 157 states have call successors, (157), 2 states have call predecessors, (157), 2 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-27 20:04:23,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 3613 transitions. [2024-11-27 20:04:23,847 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 3613 transitions. Word has length 157 [2024-11-27 20:04:23,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:23,848 INFO L471 AbstractCegarLoop]: Abstraction has 3121 states and 3613 transitions. [2024-11-27 20:04:23,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 8 states have internal predecessors, (92), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-27 20:04:23,849 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 3613 transitions. [2024-11-27 20:04:23,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-27 20:04:23,852 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:23,852 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:23,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-27 20:04:24,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-27 20:04:24,057 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:24,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:24,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1260023578, now seen corresponding path program 3 times [2024-11-27 20:04:24,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:24,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460527144] [2024-11-27 20:04:24,058 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:04:24,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:24,116 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-27 20:04:24,116 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:04:24,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [232246074] [2024-11-27 20:04:24,118 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:04:24,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:24,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:24,122 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:24,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-27 20:04:24,239 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-27 20:04:24,239 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:24,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:04:24,246 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:24,647 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-27 20:04:24,647 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:25,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:25,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460527144] [2024-11-27 20:04:25,009 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:04:25,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232246074] [2024-11-27 20:04:25,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232246074] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:25,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:04:25,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-27 20:04:25,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31151314] [2024-11-27 20:04:25,010 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:04:25,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:04:25,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:25,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:04:25,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:04:25,012 INFO L87 Difference]: Start difference. First operand 3121 states and 3613 transitions. Second operand has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-27 20:04:25,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:25,851 INFO L93 Difference]: Finished difference Result 4690 states and 5481 transitions. [2024-11-27 20:04:25,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 20:04:25,852 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 157 [2024-11-27 20:04:25,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:25,865 INFO L225 Difference]: With dead ends: 4690 [2024-11-27 20:04:25,865 INFO L226 Difference]: Without dead ends: 3305 [2024-11-27 20:04:25,869 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:04:25,869 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 110 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:25,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 312 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:04:25,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3305 states. [2024-11-27 20:04:26,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3305 to 3028. [2024-11-27 20:04:26,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3028 states, 2866 states have (on average 1.1175854849965108) internal successors, (3203), 2871 states have internal predecessors, (3203), 154 states have call successors, (154), 2 states have call predecessors, (154), 2 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-27 20:04:26,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3028 states to 3028 states and 3511 transitions. [2024-11-27 20:04:26,133 INFO L78 Accepts]: Start accepts. Automaton has 3028 states and 3511 transitions. Word has length 157 [2024-11-27 20:04:26,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:26,134 INFO L471 AbstractCegarLoop]: Abstraction has 3028 states and 3511 transitions. [2024-11-27 20:04:26,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-27 20:04:26,134 INFO L276 IsEmpty]: Start isEmpty. Operand 3028 states and 3511 transitions. [2024-11-27 20:04:26,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-27 20:04:26,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:26,138 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:26,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-27 20:04:26,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-27 20:04:26,345 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:26,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:26,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1308493892, now seen corresponding path program 3 times [2024-11-27 20:04:26,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:26,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446686005] [2024-11-27 20:04:26,346 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:04:26,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:26,401 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-27 20:04:26,402 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:04:26,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [70731857] [2024-11-27 20:04:26,403 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:04:26,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:26,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:26,406 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:26,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-27 20:04:26,481 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-27 20:04:26,481 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:26,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:04:26,485 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:26,576 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 131 proven. 8 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-11-27 20:04:26,577 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:27,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:27,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446686005] [2024-11-27 20:04:27,069 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:04:27,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70731857] [2024-11-27 20:04:27,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70731857] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:27,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:04:27,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-27 20:04:27,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915791310] [2024-11-27 20:04:27,070 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:04:27,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:04:27,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:27,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:04:27,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:04:27,072 INFO L87 Difference]: Start difference. First operand 3028 states and 3511 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:04:27,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:27,379 INFO L93 Difference]: Finished difference Result 3863 states and 4500 transitions. [2024-11-27 20:04:27,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:04:27,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 157 [2024-11-27 20:04:27,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:27,393 INFO L225 Difference]: With dead ends: 3863 [2024-11-27 20:04:27,393 INFO L226 Difference]: Without dead ends: 2275 [2024-11-27 20:04:27,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:04:27,400 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 31 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:27,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 100 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:04:27,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2024-11-27 20:04:27,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 2274. [2024-11-27 20:04:27,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2274 states, 2147 states have (on average 1.1187703772706101) internal successors, (2402), 2152 states have internal predecessors, (2402), 119 states have call successors, (119), 2 states have call predecessors, (119), 2 states have return successors, (119), 119 states have call predecessors, (119), 119 states have call successors, (119) [2024-11-27 20:04:27,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 2640 transitions. [2024-11-27 20:04:27,570 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 2640 transitions. Word has length 157 [2024-11-27 20:04:27,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:27,570 INFO L471 AbstractCegarLoop]: Abstraction has 2274 states and 2640 transitions. [2024-11-27 20:04:27,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:04:27,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 2640 transitions. [2024-11-27 20:04:27,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-27 20:04:27,574 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:27,575 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:27,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-27 20:04:27,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:27,777 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:27,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:27,777 INFO L85 PathProgramCache]: Analyzing trace with hash 59873127, now seen corresponding path program 4 times [2024-11-27 20:04:27,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:27,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122711709] [2024-11-27 20:04:27,778 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:04:27,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:27,833 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:04:27,837 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:28,285 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 99 proven. 302 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-27 20:04:28,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:28,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122711709] [2024-11-27 20:04:28,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122711709] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:28,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055518324] [2024-11-27 20:04:28,285 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:04:28,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:28,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:28,291 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:28,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-27 20:04:28,395 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:04:28,395 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:28,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:04:28,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:28,871 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 148 proven. 253 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-27 20:04:28,871 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:29,280 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 148 proven. 253 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-27 20:04:29,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055518324] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:04:29,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:04:29,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 15 [2024-11-27 20:04:29,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728012097] [2024-11-27 20:04:29,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:04:29,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 20:04:29,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:29,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 20:04:29,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:04:29,283 INFO L87 Difference]: Start difference. First operand 2274 states and 2640 transitions. Second operand has 15 states, 15 states have (on average 15.2) internal successors, (228), 15 states have internal predecessors, (228), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-27 20:04:30,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:30,627 INFO L93 Difference]: Finished difference Result 4698 states and 5531 transitions. [2024-11-27 20:04:30,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:04:30,628 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 15.2) internal successors, (228), 15 states have internal predecessors, (228), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 180 [2024-11-27 20:04:30,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:30,641 INFO L225 Difference]: With dead ends: 4698 [2024-11-27 20:04:30,641 INFO L226 Difference]: Without dead ends: 3490 [2024-11-27 20:04:30,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 348 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2024-11-27 20:04:30,645 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 73 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:30,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 791 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:04:30,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3490 states. [2024-11-27 20:04:30,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3490 to 2675. [2024-11-27 20:04:30,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2675 states, 2527 states have (on average 1.116739216462208) internal successors, (2822), 2532 states have internal predecessors, (2822), 140 states have call successors, (140), 2 states have call predecessors, (140), 2 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-27 20:04:30,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 3102 transitions. [2024-11-27 20:04:30,864 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 3102 transitions. Word has length 180 [2024-11-27 20:04:30,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:30,865 INFO L471 AbstractCegarLoop]: Abstraction has 2675 states and 3102 transitions. [2024-11-27 20:04:30,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 15.2) internal successors, (228), 15 states have internal predecessors, (228), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-27 20:04:30,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 3102 transitions. [2024-11-27 20:04:30,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-27 20:04:30,869 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:30,870 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:30,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-27 20:04:31,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:31,071 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:31,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:31,072 INFO L85 PathProgramCache]: Analyzing trace with hash -2140658285, now seen corresponding path program 2 times [2024-11-27 20:04:31,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:31,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356231030] [2024-11-27 20:04:31,073 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:04:31,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:31,116 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:04:31,120 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:32,006 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 50 proven. 59 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2024-11-27 20:04:32,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:32,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356231030] [2024-11-27 20:04:32,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356231030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:32,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006991553] [2024-11-27 20:04:32,007 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:04:32,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:32,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:32,010 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:32,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-27 20:04:32,119 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:04:32,119 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:32,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:04:32,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:32,711 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 18 proven. 431 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-27 20:04:32,712 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:33,433 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 18 proven. 431 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-27 20:04:33,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006991553] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:04:33,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:04:33,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 12] total 30 [2024-11-27 20:04:33,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901097754] [2024-11-27 20:04:33,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:04:33,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-27 20:04:33,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:33,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-27 20:04:33,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=761, Unknown=0, NotChecked=0, Total=930 [2024-11-27 20:04:33,438 INFO L87 Difference]: Start difference. First operand 2675 states and 3102 transitions. Second operand has 31 states, 30 states have (on average 10.633333333333333) internal successors, (319), 30 states have internal predecessors, (319), 18 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (20), 18 states have call predecessors, (20), 18 states have call successors, (20) [2024-11-27 20:04:39,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:39,129 INFO L93 Difference]: Finished difference Result 5754 states and 6640 transitions. [2024-11-27 20:04:39,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2024-11-27 20:04:39,129 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 10.633333333333333) internal successors, (319), 30 states have internal predecessors, (319), 18 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (20), 18 states have call predecessors, (20), 18 states have call successors, (20) Word has length 182 [2024-11-27 20:04:39,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:39,155 INFO L225 Difference]: With dead ends: 5754 [2024-11-27 20:04:39,155 INFO L226 Difference]: Without dead ends: 5716 [2024-11-27 20:04:39,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 353 SyntacticMatches, 1 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8029 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=4760, Invalid=15262, Unknown=0, NotChecked=0, Total=20022 [2024-11-27 20:04:39,164 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 1184 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:39,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1184 Valid, 360 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:04:39,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5716 states. [2024-11-27 20:04:39,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5716 to 2588. [2024-11-27 20:04:39,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2588 states, 2445 states have (on average 1.0478527607361963) internal successors, (2562), 2448 states have internal predecessors, (2562), 137 states have call successors, (137), 2 states have call predecessors, (137), 2 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-27 20:04:39,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2588 states to 2588 states and 2836 transitions. [2024-11-27 20:04:39,431 INFO L78 Accepts]: Start accepts. Automaton has 2588 states and 2836 transitions. Word has length 182 [2024-11-27 20:04:39,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:39,433 INFO L471 AbstractCegarLoop]: Abstraction has 2588 states and 2836 transitions. [2024-11-27 20:04:39,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 10.633333333333333) internal successors, (319), 30 states have internal predecessors, (319), 18 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (20), 18 states have call predecessors, (20), 18 states have call successors, (20) [2024-11-27 20:04:39,433 INFO L276 IsEmpty]: Start isEmpty. Operand 2588 states and 2836 transitions. [2024-11-27 20:04:39,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-27 20:04:39,438 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:39,439 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:39,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-27 20:04:39,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-27 20:04:39,639 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:39,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:39,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1809512944, now seen corresponding path program 5 times [2024-11-27 20:04:39,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:39,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366286184] [2024-11-27 20:04:39,640 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:04:39,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:39,735 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-27 20:04:39,735 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:04:39,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1016771565] [2024-11-27 20:04:39,737 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:04:39,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:39,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:39,741 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:39,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-27 20:04:39,876 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-27 20:04:39,876 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:39,879 INFO L256 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-27 20:04:39,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:43,303 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 12 proven. 544 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-27 20:04:43,303 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:43,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:43,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366286184] [2024-11-27 20:04:43,899 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:04:43,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016771565] [2024-11-27 20:04:43,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016771565] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:43,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:04:43,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2024-11-27 20:04:43,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277916955] [2024-11-27 20:04:43,899 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:04:43,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-27 20:04:43,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:43,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-27 20:04:43,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1157, Unknown=0, NotChecked=0, Total=1332 [2024-11-27 20:04:43,902 INFO L87 Difference]: Start difference. First operand 2588 states and 2836 transitions. Second operand has 33 states, 32 states have (on average 5.15625) internal successors, (165), 31 states have internal predecessors, (165), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 20:04:46,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:46,640 INFO L93 Difference]: Finished difference Result 4135 states and 4529 transitions. [2024-11-27 20:04:46,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-27 20:04:46,641 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 5.15625) internal successors, (165), 31 states have internal predecessors, (165), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Word has length 203 [2024-11-27 20:04:46,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:46,657 INFO L225 Difference]: With dead ends: 4135 [2024-11-27 20:04:46,658 INFO L226 Difference]: Without dead ends: 2837 [2024-11-27 20:04:46,660 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 180 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=334, Invalid=2018, Unknown=0, NotChecked=0, Total=2352 [2024-11-27 20:04:46,661 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 64 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 2930 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 2934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:46,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1311 Invalid, 2934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2930 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 20:04:46,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2837 states. [2024-11-27 20:04:46,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2837 to 2664. [2024-11-27 20:04:46,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2664 states, 2517 states have (on average 1.0464839094159715) internal successors, (2634), 2520 states have internal predecessors, (2634), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-27 20:04:46,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 2916 transitions. [2024-11-27 20:04:46,898 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 2916 transitions. Word has length 203 [2024-11-27 20:04:46,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:46,898 INFO L471 AbstractCegarLoop]: Abstraction has 2664 states and 2916 transitions. [2024-11-27 20:04:46,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 5.15625) internal successors, (165), 31 states have internal predecessors, (165), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 20:04:46,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 2916 transitions. [2024-11-27 20:04:46,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-27 20:04:46,907 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:46,908 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:46,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-27 20:04:47,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-27 20:04:47,112 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:47,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:47,112 INFO L85 PathProgramCache]: Analyzing trace with hash -621965316, now seen corresponding path program 6 times [2024-11-27 20:04:47,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:47,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452179662] [2024-11-27 20:04:47,112 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 20:04:47,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:47,159 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2024-11-27 20:04:47,160 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:04:47,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1106324776] [2024-11-27 20:04:47,161 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 20:04:47,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:47,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:47,167 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:47,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-27 20:04:47,302 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2024-11-27 20:04:47,303 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:47,305 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-27 20:04:47,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:48,119 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 6 proven. 497 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-27 20:04:48,119 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:48,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:48,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452179662] [2024-11-27 20:04:48,336 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:04:48,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106324776] [2024-11-27 20:04:48,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106324776] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:48,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:04:48,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-27 20:04:48,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114908047] [2024-11-27 20:04:48,337 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:04:48,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 20:04:48,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:48,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 20:04:48,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:04:48,339 INFO L87 Difference]: Start difference. First operand 2664 states and 2916 transitions. Second operand has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-27 20:04:49,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:49,054 INFO L93 Difference]: Finished difference Result 3033 states and 3318 transitions. [2024-11-27 20:04:49,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:04:49,055 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) Word has length 203 [2024-11-27 20:04:49,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:49,063 INFO L225 Difference]: With dead ends: 3033 [2024-11-27 20:04:49,063 INFO L226 Difference]: Without dead ends: 3029 [2024-11-27 20:04:49,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:04:49,064 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 27 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:49,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 444 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:04:49,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3029 states. [2024-11-27 20:04:49,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3029 to 2816. [2024-11-27 20:04:49,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2816 states, 2662 states have (on average 1.0458302028549962) internal successors, (2784), 2665 states have internal predecessors, (2784), 148 states have call successors, (148), 2 states have call predecessors, (148), 2 states have return successors, (148), 148 states have call predecessors, (148), 148 states have call successors, (148) [2024-11-27 20:04:49,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2816 states to 2816 states and 3080 transitions. [2024-11-27 20:04:49,247 INFO L78 Accepts]: Start accepts. Automaton has 2816 states and 3080 transitions. Word has length 203 [2024-11-27 20:04:49,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:49,248 INFO L471 AbstractCegarLoop]: Abstraction has 2816 states and 3080 transitions. [2024-11-27 20:04:49,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-27 20:04:49,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2816 states and 3080 transitions. [2024-11-27 20:04:49,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-27 20:04:49,255 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:49,255 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:49,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-27 20:04:49,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-27 20:04:49,460 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:49,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:49,460 INFO L85 PathProgramCache]: Analyzing trace with hash -2110652232, now seen corresponding path program 2 times [2024-11-27 20:04:49,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:49,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166853705] [2024-11-27 20:04:49,460 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:04:49,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:49,491 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:04:49,491 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:49,830 INFO L134 CoverageAnalysis]: Checked inductivity of 792 backedges. 0 proven. 644 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-27 20:04:49,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:49,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166853705] [2024-11-27 20:04:49,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166853705] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:49,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561429086] [2024-11-27 20:04:49,831 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:04:49,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:49,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:49,833 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:49,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-27 20:04:49,947 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:04:49,947 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:49,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:04:49,956 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:50,270 INFO L134 CoverageAnalysis]: Checked inductivity of 792 backedges. 0 proven. 644 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-27 20:04:50,270 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:50,838 INFO L134 CoverageAnalysis]: Checked inductivity of 792 backedges. 0 proven. 644 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-27 20:04:50,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561429086] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:04:50,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:04:50,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-27 20:04:50,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969149523] [2024-11-27 20:04:50,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:04:50,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 20:04:50,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:50,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 20:04:50,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:04:50,843 INFO L87 Difference]: Start difference. First operand 2816 states and 3080 transitions. Second operand has 21 states, 20 states have (on average 17.05) internal successors, (341), 21 states have internal predecessors, (341), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-27 20:04:51,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:51,652 INFO L93 Difference]: Finished difference Result 4907 states and 5500 transitions. [2024-11-27 20:04:51,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 20:04:51,653 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 17.05) internal successors, (341), 21 states have internal predecessors, (341), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 215 [2024-11-27 20:04:51,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:51,669 INFO L225 Difference]: With dead ends: 4907 [2024-11-27 20:04:51,669 INFO L226 Difference]: Without dead ends: 4906 [2024-11-27 20:04:51,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:04:51,672 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 32 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:51,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 267 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:04:51,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4906 states. [2024-11-27 20:04:52,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4906 to 4906. [2024-11-27 20:04:52,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4906 states, 4642 states have (on average 1.049978457561396) internal successors, (4874), 4645 states have internal predecessors, (4874), 258 states have call successors, (258), 2 states have call predecessors, (258), 2 states have return successors, (258), 258 states have call predecessors, (258), 258 states have call successors, (258) [2024-11-27 20:04:52,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4906 states to 4906 states and 5390 transitions. [2024-11-27 20:04:52,126 INFO L78 Accepts]: Start accepts. Automaton has 4906 states and 5390 transitions. Word has length 215 [2024-11-27 20:04:52,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:52,127 INFO L471 AbstractCegarLoop]: Abstraction has 4906 states and 5390 transitions. [2024-11-27 20:04:52,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 17.05) internal successors, (341), 21 states have internal predecessors, (341), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-27 20:04:52,127 INFO L276 IsEmpty]: Start isEmpty. Operand 4906 states and 5390 transitions. [2024-11-27 20:04:52,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-27 20:04:52,130 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:52,130 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:52,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-27 20:04:52,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-27 20:04:52,335 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:52,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:52,336 INFO L85 PathProgramCache]: Analyzing trace with hash -614426988, now seen corresponding path program 2 times [2024-11-27 20:04:52,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:52,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835991018] [2024-11-27 20:04:52,336 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:04:52,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:52,370 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:04:52,370 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:52,702 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-27 20:04:52,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:52,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835991018] [2024-11-27 20:04:52,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835991018] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:52,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699033269] [2024-11-27 20:04:52,703 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:04:52,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:52,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:52,706 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:52,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-27 20:04:52,810 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:04:52,810 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:04:52,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:04:52,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:53,152 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-27 20:04:53,153 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:53,708 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-27 20:04:53,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699033269] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:04:53,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:04:53,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-27 20:04:53,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176836486] [2024-11-27 20:04:53,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:04:53,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 20:04:53,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:53,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 20:04:53,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:04:53,712 INFO L87 Difference]: Start difference. First operand 4906 states and 5390 transitions. Second operand has 21 states, 20 states have (on average 17.35) internal successors, (347), 21 states have internal predecessors, (347), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-27 20:04:54,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:54,662 INFO L93 Difference]: Finished difference Result 9697 states and 10692 transitions. [2024-11-27 20:04:54,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 20:04:54,662 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 17.35) internal successors, (347), 21 states have internal predecessors, (347), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 218 [2024-11-27 20:04:54,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:54,690 INFO L225 Difference]: With dead ends: 9697 [2024-11-27 20:04:54,690 INFO L226 Difference]: Without dead ends: 9696 [2024-11-27 20:04:54,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:04:54,693 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 346 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:54,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 407 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:04:54,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9696 states. [2024-11-27 20:04:55,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9696 to 9646. [2024-11-27 20:04:55,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9646 states, 9132 states have (on average 1.0516863775733685) internal successors, (9604), 9135 states have internal predecessors, (9604), 508 states have call successors, (508), 2 states have call predecessors, (508), 2 states have return successors, (508), 508 states have call predecessors, (508), 508 states have call successors, (508) [2024-11-27 20:04:55,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9646 states to 9646 states and 10620 transitions. [2024-11-27 20:04:55,552 INFO L78 Accepts]: Start accepts. Automaton has 9646 states and 10620 transitions. Word has length 218 [2024-11-27 20:04:55,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:55,554 INFO L471 AbstractCegarLoop]: Abstraction has 9646 states and 10620 transitions. [2024-11-27 20:04:55,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 17.35) internal successors, (347), 21 states have internal predecessors, (347), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-27 20:04:55,555 INFO L276 IsEmpty]: Start isEmpty. Operand 9646 states and 10620 transitions. [2024-11-27 20:04:55,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-27 20:04:55,590 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:55,590 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:55,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-27 20:04:55,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-27 20:04:55,791 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:55,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:55,792 INFO L85 PathProgramCache]: Analyzing trace with hash 589006835, now seen corresponding path program 7 times [2024-11-27 20:04:55,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:55,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448091072] [2024-11-27 20:04:55,792 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:04:55,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:56,199 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 183 proven. 499 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-27 20:04:56,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:56,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448091072] [2024-11-27 20:04:56,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448091072] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:04:56,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639394528] [2024-11-27 20:04:56,200 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:04:56,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:04:56,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:56,203 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:04:56,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-27 20:04:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:56,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:04:56,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:04:56,856 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 232 proven. 450 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-27 20:04:56,857 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:04:57,302 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 232 proven. 450 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-27 20:04:57,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639394528] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:04:57,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:04:57,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 18 [2024-11-27 20:04:57,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615454659] [2024-11-27 20:04:57,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:04:57,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 20:04:57,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:57,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 20:04:57,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:04:57,305 INFO L87 Difference]: Start difference. First operand 9646 states and 10620 transitions. Second operand has 18 states, 18 states have (on average 15.777777777777779) internal successors, (284), 18 states have internal predecessors, (284), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-27 20:04:58,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:04:58,866 INFO L93 Difference]: Finished difference Result 21914 states and 24139 transitions. [2024-11-27 20:04:58,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:04:58,866 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.777777777777779) internal successors, (284), 18 states have internal predecessors, (284), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 226 [2024-11-27 20:04:58,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:04:58,907 INFO L225 Difference]: With dead ends: 21914 [2024-11-27 20:04:58,908 INFO L226 Difference]: Without dead ends: 15782 [2024-11-27 20:04:58,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 437 SyntacticMatches, 9 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:04:58,919 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 45 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:04:58,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 758 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 923 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:04:58,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15782 states. [2024-11-27 20:04:59,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15782 to 10950. [2024-11-27 20:04:59,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10950 states, 10368 states have (on average 1.0486111111111112) internal successors, (10872), 10371 states have internal predecessors, (10872), 576 states have call successors, (576), 2 states have call predecessors, (576), 2 states have return successors, (576), 576 states have call predecessors, (576), 576 states have call successors, (576) [2024-11-27 20:04:59,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10950 states to 10950 states and 12024 transitions. [2024-11-27 20:04:59,778 INFO L78 Accepts]: Start accepts. Automaton has 10950 states and 12024 transitions. Word has length 226 [2024-11-27 20:04:59,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:04:59,779 INFO L471 AbstractCegarLoop]: Abstraction has 10950 states and 12024 transitions. [2024-11-27 20:04:59,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.777777777777779) internal successors, (284), 18 states have internal predecessors, (284), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-27 20:04:59,779 INFO L276 IsEmpty]: Start isEmpty. Operand 10950 states and 12024 transitions. [2024-11-27 20:04:59,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-27 20:04:59,782 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:04:59,782 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:59,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-27 20:04:59,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-27 20:04:59,984 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:04:59,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:59,985 INFO L85 PathProgramCache]: Analyzing trace with hash -482832067, now seen corresponding path program 8 times [2024-11-27 20:04:59,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:59,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710475696] [2024-11-27 20:04:59,986 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:04:59,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:00,029 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:05:00,029 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:05:00,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [74377139] [2024-11-27 20:05:00,031 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:05:00,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:05:00,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:05:00,034 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:05:00,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-27 20:05:00,153 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:05:00,153 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:05:00,155 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:05:00,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:01,037 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 0 proven. 568 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-11-27 20:05:01,037 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:05:01,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:01,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710475696] [2024-11-27 20:05:01,289 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:05:01,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74377139] [2024-11-27 20:05:01,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74377139] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:05:01,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:05:01,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-27 20:05:01,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954697822] [2024-11-27 20:05:01,289 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:05:01,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:05:01,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:01,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:05:01,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:05:01,290 INFO L87 Difference]: Start difference. First operand 10950 states and 12024 transitions. Second operand has 9 states, 8 states have (on average 14.375) internal successors, (115), 9 states have internal predecessors, (115), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-27 20:05:02,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:02,197 INFO L93 Difference]: Finished difference Result 11823 states and 12974 transitions. [2024-11-27 20:05:02,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:05:02,197 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.375) internal successors, (115), 9 states have internal predecessors, (115), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 226 [2024-11-27 20:05:02,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:02,223 INFO L225 Difference]: With dead ends: 11823 [2024-11-27 20:05:02,223 INFO L226 Difference]: Without dead ends: 11819 [2024-11-27 20:05:02,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:05:02,226 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 23 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:02,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 303 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:05:02,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11819 states. [2024-11-27 20:05:03,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11819 to 11396. [2024-11-27 20:05:03,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11396 states, 10791 states have (on average 1.048002965434158) internal successors, (11309), 10794 states have internal predecessors, (11309), 599 states have call successors, (599), 2 states have call predecessors, (599), 2 states have return successors, (599), 599 states have call predecessors, (599), 599 states have call successors, (599) [2024-11-27 20:05:03,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11396 states to 11396 states and 12507 transitions. [2024-11-27 20:05:03,365 INFO L78 Accepts]: Start accepts. Automaton has 11396 states and 12507 transitions. Word has length 226 [2024-11-27 20:05:03,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:03,366 INFO L471 AbstractCegarLoop]: Abstraction has 11396 states and 12507 transitions. [2024-11-27 20:05:03,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.375) internal successors, (115), 9 states have internal predecessors, (115), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-27 20:05:03,367 INFO L276 IsEmpty]: Start isEmpty. Operand 11396 states and 12507 transitions. [2024-11-27 20:05:03,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-27 20:05:03,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:03,372 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:03,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-27 20:05:03,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-27 20:05:03,573 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:05:03,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:03,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1363621892, now seen corresponding path program 9 times [2024-11-27 20:05:03,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:03,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643290760] [2024-11-27 20:05:03,575 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:05:03,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:03,661 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-27 20:05:03,668 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:05:03,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1920802389] [2024-11-27 20:05:03,671 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:05:03,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:05:03,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:05:03,678 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:05:03,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-27 20:05:03,804 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-27 20:05:03,805 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:05:03,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:05:03,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:04,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 677 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2024-11-27 20:05:04,615 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:05:04,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:04,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643290760] [2024-11-27 20:05:04,956 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:05:04,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920802389] [2024-11-27 20:05:04,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920802389] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:05:04,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:05:04,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-27 20:05:04,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724927529] [2024-11-27 20:05:04,957 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:05:04,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:05:04,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:04,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:05:04,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:05:04,961 INFO L87 Difference]: Start difference. First operand 11396 states and 12507 transitions. Second operand has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 10 states have internal predecessors, (128), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-27 20:05:06,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:06,603 INFO L93 Difference]: Finished difference Result 18616 states and 20437 transitions. [2024-11-27 20:05:06,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 20:05:06,604 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 10 states have internal predecessors, (128), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 249 [2024-11-27 20:05:06,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:06,636 INFO L225 Difference]: With dead ends: 18616 [2024-11-27 20:05:06,636 INFO L226 Difference]: Without dead ends: 12217 [2024-11-27 20:05:06,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2024-11-27 20:05:06,646 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 149 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:06,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 678 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:05:06,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12217 states. [2024-11-27 20:05:07,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12217 to 11501. [2024-11-27 20:05:07,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11501 states, 10891 states have (on average 1.0475622073271509) internal successors, (11409), 10894 states have internal predecessors, (11409), 604 states have call successors, (604), 2 states have call predecessors, (604), 2 states have return successors, (604), 604 states have call predecessors, (604), 604 states have call successors, (604) [2024-11-27 20:05:07,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11501 states to 11501 states and 12617 transitions. [2024-11-27 20:05:07,459 INFO L78 Accepts]: Start accepts. Automaton has 11501 states and 12617 transitions. Word has length 249 [2024-11-27 20:05:07,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:07,460 INFO L471 AbstractCegarLoop]: Abstraction has 11501 states and 12617 transitions. [2024-11-27 20:05:07,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 10 states have internal predecessors, (128), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-27 20:05:07,460 INFO L276 IsEmpty]: Start isEmpty. Operand 11501 states and 12617 transitions. [2024-11-27 20:05:07,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-27 20:05:07,463 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:07,464 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:07,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-27 20:05:07,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-27 20:05:07,668 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:05:07,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:07,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1364105362, now seen corresponding path program 10 times [2024-11-27 20:05:07,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:07,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428392801] [2024-11-27 20:05:07,669 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:05:07,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:07,722 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:05:07,723 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:05:07,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [721538911] [2024-11-27 20:05:07,728 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:05:07,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:05:07,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:05:07,731 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:05:07,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-27 20:05:07,871 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:05:07,871 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:05:07,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-27 20:05:07,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:13,190 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 33 proven. 848 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-27 20:05:13,190 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:05:13,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:13,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428392801] [2024-11-27 20:05:13,770 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:05:13,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721538911] [2024-11-27 20:05:13,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721538911] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:05:13,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:05:13,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2024-11-27 20:05:13,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555875880] [2024-11-27 20:05:13,770 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:05:13,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-27 20:05:13,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:13,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-27 20:05:13,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=1692, Unknown=0, NotChecked=0, Total=1892 [2024-11-27 20:05:13,772 INFO L87 Difference]: Start difference. First operand 11501 states and 12617 transitions. Second operand has 39 states, 37 states have (on average 5.4324324324324325) internal successors, (201), 35 states have internal predecessors, (201), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 20:05:18,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:05:22,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:05:33,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:05:37,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:37,171 INFO L93 Difference]: Finished difference Result 12308 states and 13497 transitions. [2024-11-27 20:05:37,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-11-27 20:05:37,171 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 37 states have (on average 5.4324324324324325) internal successors, (201), 35 states have internal predecessors, (201), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) Word has length 249 [2024-11-27 20:05:37,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:37,199 INFO L225 Difference]: With dead ends: 12308 [2024-11-27 20:05:37,199 INFO L226 Difference]: Without dead ends: 12304 [2024-11-27 20:05:37,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2189 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=978, Invalid=7032, Unknown=0, NotChecked=0, Total=8010 [2024-11-27 20:05:37,207 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 304 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 2996 mSolverCounterSat, 33 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 3032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2996 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:37,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 1021 Invalid, 3032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2996 Invalid, 3 Unknown, 0 Unchecked, 17.3s Time] [2024-11-27 20:05:37,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12304 states. [2024-11-27 20:05:38,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12304 to 11501. [2024-11-27 20:05:38,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11501 states, 10891 states have (on average 1.047378569461023) internal successors, (11407), 10894 states have internal predecessors, (11407), 604 states have call successors, (604), 2 states have call predecessors, (604), 2 states have return successors, (604), 604 states have call predecessors, (604), 604 states have call successors, (604) [2024-11-27 20:05:38,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11501 states to 11501 states and 12615 transitions. [2024-11-27 20:05:38,074 INFO L78 Accepts]: Start accepts. Automaton has 11501 states and 12615 transitions. Word has length 249 [2024-11-27 20:05:38,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:38,075 INFO L471 AbstractCegarLoop]: Abstraction has 11501 states and 12615 transitions. [2024-11-27 20:05:38,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 37 states have (on average 5.4324324324324325) internal successors, (201), 35 states have internal predecessors, (201), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 20:05:38,075 INFO L276 IsEmpty]: Start isEmpty. Operand 11501 states and 12615 transitions. [2024-11-27 20:05:38,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-27 20:05:38,078 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:38,078 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:38,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-27 20:05:38,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-27 20:05:38,278 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:05:38,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:38,279 INFO L85 PathProgramCache]: Analyzing trace with hash 2006574213, now seen corresponding path program 11 times [2024-11-27 20:05:38,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:38,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086459326] [2024-11-27 20:05:38,279 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:05:38,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:38,315 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-11-27 20:05:38,315 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:05:38,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 595 proven. 273 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2024-11-27 20:05:38,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:38,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086459326] [2024-11-27 20:05:38,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086459326] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:05:38,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951130169] [2024-11-27 20:05:38,560 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:05:38,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:05:38,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:05:38,563 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:05:38,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-27 20:05:38,695 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-11-27 20:05:38,695 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:05:38,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:05:38,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:39,062 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 716 proven. 192 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2024-11-27 20:05:39,062 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:05:39,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 508 proven. 360 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2024-11-27 20:05:39,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951130169] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:05:39,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:05:39,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 9 [2024-11-27 20:05:39,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151684508] [2024-11-27 20:05:39,381 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:05:39,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:05:39,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:39,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:05:39,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:05:39,383 INFO L87 Difference]: Start difference. First operand 11501 states and 12615 transitions. Second operand has 9 states, 9 states have (on average 20.444444444444443) internal successors, (184), 9 states have internal predecessors, (184), 9 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-27 20:05:40,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:40,371 INFO L93 Difference]: Finished difference Result 18885 states and 20725 transitions. [2024-11-27 20:05:40,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:05:40,371 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.444444444444443) internal successors, (184), 9 states have internal predecessors, (184), 9 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) Word has length 272 [2024-11-27 20:05:40,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:40,393 INFO L225 Difference]: With dead ends: 18885 [2024-11-27 20:05:40,393 INFO L226 Difference]: Without dead ends: 11152 [2024-11-27 20:05:40,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 542 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:05:40,406 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 9 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:40,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 303 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:05:40,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11152 states. [2024-11-27 20:05:41,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11152 to 11149. [2024-11-27 20:05:41,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11149 states, 10556 states have (on average 1.0457559681697612) internal successors, (11039), 10559 states have internal predecessors, (11039), 587 states have call successors, (587), 2 states have call predecessors, (587), 2 states have return successors, (587), 587 states have call predecessors, (587), 587 states have call successors, (587) [2024-11-27 20:05:41,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11149 states to 11149 states and 12213 transitions. [2024-11-27 20:05:41,426 INFO L78 Accepts]: Start accepts. Automaton has 11149 states and 12213 transitions. Word has length 272 [2024-11-27 20:05:41,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:41,426 INFO L471 AbstractCegarLoop]: Abstraction has 11149 states and 12213 transitions. [2024-11-27 20:05:41,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.444444444444443) internal successors, (184), 9 states have internal predecessors, (184), 9 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-27 20:05:41,427 INFO L276 IsEmpty]: Start isEmpty. Operand 11149 states and 12213 transitions. [2024-11-27 20:05:41,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-27 20:05:41,434 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:41,434 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:41,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-27 20:05:41,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-11-27 20:05:41,639 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:05:41,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:41,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1149251376, now seen corresponding path program 12 times [2024-11-27 20:05:41,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:41,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994511921] [2024-11-27 20:05:41,640 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 20:05:41,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:41,728 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2024-11-27 20:05:41,728 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:05:41,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1394952595] [2024-11-27 20:05:41,731 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 20:05:41,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:05:41,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:05:41,736 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:05:41,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-27 20:05:42,028 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2024-11-27 20:05:42,028 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:05:42,035 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 20:05:42,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:43,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1514 backedges. 0 proven. 981 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2024-11-27 20:05:43,218 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:05:43,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:43,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994511921] [2024-11-27 20:05:43,473 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:05:43,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394952595] [2024-11-27 20:05:43,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394952595] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:05:43,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:05:43,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-27 20:05:43,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198237479] [2024-11-27 20:05:43,474 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:05:43,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:05:43,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:43,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:05:43,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:05:43,476 INFO L87 Difference]: Start difference. First operand 11149 states and 12213 transitions. Second operand has 11 states, 10 states have (on average 14.6) internal successors, (146), 11 states have internal predecessors, (146), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-27 20:05:44,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:44,750 INFO L93 Difference]: Finished difference Result 11887 states and 13017 transitions. [2024-11-27 20:05:44,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:05:44,751 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.6) internal successors, (146), 11 states have internal predecessors, (146), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 295 [2024-11-27 20:05:44,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:44,773 INFO L225 Difference]: With dead ends: 11887 [2024-11-27 20:05:44,773 INFO L226 Difference]: Without dead ends: 11883 [2024-11-27 20:05:44,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:05:44,779 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 21 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:44,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 633 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:05:44,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11883 states. [2024-11-27 20:05:45,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11883 to 11509. [2024-11-27 20:05:45,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11509 states, 10897 states have (on average 1.045700651555474) internal successors, (11395), 10900 states have internal predecessors, (11395), 606 states have call successors, (606), 2 states have call predecessors, (606), 2 states have return successors, (606), 606 states have call predecessors, (606), 606 states have call successors, (606) [2024-11-27 20:05:45,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11509 states to 11509 states and 12607 transitions. [2024-11-27 20:05:45,708 INFO L78 Accepts]: Start accepts. Automaton has 11509 states and 12607 transitions. Word has length 295 [2024-11-27 20:05:45,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:45,709 INFO L471 AbstractCegarLoop]: Abstraction has 11509 states and 12607 transitions. [2024-11-27 20:05:45,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.6) internal successors, (146), 11 states have internal predecessors, (146), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-27 20:05:45,709 INFO L276 IsEmpty]: Start isEmpty. Operand 11509 states and 12607 transitions. [2024-11-27 20:05:45,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-27 20:05:45,714 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:45,714 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:45,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-27 20:05:45,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-27 20:05:45,915 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:05:45,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:45,916 INFO L85 PathProgramCache]: Analyzing trace with hash 503482182, now seen corresponding path program 13 times [2024-11-27 20:05:45,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:45,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481859001] [2024-11-27 20:05:45,916 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:05:45,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:05:45,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1433743371] [2024-11-27 20:05:45,983 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:05:45,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:05:45,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:05:45,986 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:05:45,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-27 20:05:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:46,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-27 20:05:46,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:50,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1486 backedges. 33 proven. 1221 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-27 20:05:50,514 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:05:51,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:51,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481859001] [2024-11-27 20:05:51,088 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:05:51,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433743371] [2024-11-27 20:05:51,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433743371] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:05:51,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:05:51,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2024-11-27 20:05:51,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956958221] [2024-11-27 20:05:51,089 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:05:51,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-27 20:05:51,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:51,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-27 20:05:51,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=349, Invalid=1813, Unknown=0, NotChecked=0, Total=2162 [2024-11-27 20:05:51,092 INFO L87 Difference]: Start difference. First operand 11509 states and 12607 transitions. Second operand has 42 states, 40 states have (on average 5.925) internal successors, (237), 40 states have internal predecessors, (237), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-27 20:05:55,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:55,373 INFO L93 Difference]: Finished difference Result 12154 states and 13314 transitions. [2024-11-27 20:05:55,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-27 20:05:55,374 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 40 states have (on average 5.925) internal successors, (237), 40 states have internal predecessors, (237), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) Word has length 295 [2024-11-27 20:05:55,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:55,390 INFO L225 Difference]: With dead ends: 12154 [2024-11-27 20:05:55,391 INFO L226 Difference]: Without dead ends: 12150 [2024-11-27 20:05:55,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1970 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1134, Invalid=5028, Unknown=0, NotChecked=0, Total=6162 [2024-11-27 20:05:55,397 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 224 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 1825 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 1838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:55,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 836 Invalid, 1838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1825 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 20:05:55,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12150 states. [2024-11-27 20:05:56,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12150 to 11499. [2024-11-27 20:05:56,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11499 states, 10887 states have (on average 1.0455589234867273) internal successors, (11383), 10890 states have internal predecessors, (11383), 606 states have call successors, (606), 2 states have call predecessors, (606), 2 states have return successors, (606), 606 states have call predecessors, (606), 606 states have call successors, (606) [2024-11-27 20:05:56,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11499 states to 11499 states and 12595 transitions. [2024-11-27 20:05:56,846 INFO L78 Accepts]: Start accepts. Automaton has 11499 states and 12595 transitions. Word has length 295 [2024-11-27 20:05:56,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:56,847 INFO L471 AbstractCegarLoop]: Abstraction has 11499 states and 12595 transitions. [2024-11-27 20:05:56,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 40 states have (on average 5.925) internal successors, (237), 40 states have internal predecessors, (237), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-27 20:05:56,847 INFO L276 IsEmpty]: Start isEmpty. Operand 11499 states and 12595 transitions. [2024-11-27 20:05:56,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-27 20:05:56,852 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:56,852 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:56,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-27 20:05:57,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-27 20:05:57,053 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:05:57,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:57,053 INFO L85 PathProgramCache]: Analyzing trace with hash 260574180, now seen corresponding path program 14 times [2024-11-27 20:05:57,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:57,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441559217] [2024-11-27 20:05:57,054 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:05:57,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:57,119 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:05:57,119 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:05:57,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1121287306] [2024-11-27 20:05:57,122 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:05:57,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:05:57,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:05:57,125 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:05:57,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-27 20:05:57,294 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:05:57,294 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:05:57,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:05:57,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:58,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1466 backedges. 0 proven. 1051 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2024-11-27 20:05:58,400 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:06:07,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:07,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441559217] [2024-11-27 20:06:07,391 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:06:07,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121287306] [2024-11-27 20:06:07,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121287306] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:07,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:06:07,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-27 20:06:07,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714391636] [2024-11-27 20:06:07,392 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:06:07,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:06:07,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:07,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:06:07,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=175, Unknown=2, NotChecked=0, Total=240 [2024-11-27 20:06:07,393 INFO L87 Difference]: Start difference. First operand 11499 states and 12595 transitions. Second operand has 10 states, 9 states have (on average 15.333333333333334) internal successors, (138), 10 states have internal predecessors, (138), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-27 20:06:08,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:08,641 INFO L93 Difference]: Finished difference Result 12373 states and 13545 transitions. [2024-11-27 20:06:08,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:06:08,642 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.333333333333334) internal successors, (138), 10 states have internal predecessors, (138), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 295 [2024-11-27 20:06:08,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:08,654 INFO L225 Difference]: With dead ends: 12373 [2024-11-27 20:06:08,654 INFO L226 Difference]: Without dead ends: 12369 [2024-11-27 20:06:08,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=63, Invalid=175, Unknown=2, NotChecked=0, Total=240 [2024-11-27 20:06:08,656 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 23 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:08,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 615 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:06:08,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12369 states. [2024-11-27 20:06:09,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12369 to 11945. [2024-11-27 20:06:09,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11945 states, 11310 states have (on average 1.0450928381962865) internal successors, (11820), 11313 states have internal predecessors, (11820), 629 states have call successors, (629), 2 states have call predecessors, (629), 2 states have return successors, (629), 629 states have call predecessors, (629), 629 states have call successors, (629) [2024-11-27 20:06:09,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11945 states to 11945 states and 13078 transitions. [2024-11-27 20:06:09,698 INFO L78 Accepts]: Start accepts. Automaton has 11945 states and 13078 transitions. Word has length 295 [2024-11-27 20:06:09,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:09,699 INFO L471 AbstractCegarLoop]: Abstraction has 11945 states and 13078 transitions. [2024-11-27 20:06:09,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.333333333333334) internal successors, (138), 10 states have internal predecessors, (138), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-27 20:06:09,700 INFO L276 IsEmpty]: Start isEmpty. Operand 11945 states and 13078 transitions. [2024-11-27 20:06:09,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-27 20:06:09,704 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:09,704 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:09,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-27 20:06:09,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:09,905 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:06:09,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:09,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1823738536, now seen corresponding path program 15 times [2024-11-27 20:06:09,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:09,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608073233] [2024-11-27 20:06:09,906 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:06:09,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:09,967 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2024-11-27 20:06:09,967 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:06:09,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1099092688] [2024-11-27 20:06:09,969 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:06:09,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:09,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:09,972 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:09,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-27 20:06:10,164 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-27 20:06:10,164 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:06:10,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:06:10,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:11,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1450 backedges. 15 proven. 1107 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-11-27 20:06:11,095 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:06:11,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:11,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608073233] [2024-11-27 20:06:11,342 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:06:11,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099092688] [2024-11-27 20:06:11,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099092688] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:11,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:06:11,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-27 20:06:11,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857019584] [2024-11-27 20:06:11,343 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:06:11,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:06:11,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:11,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:06:11,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:06:11,345 INFO L87 Difference]: Start difference. First operand 11945 states and 13078 transitions. Second operand has 13 states, 12 states have (on average 14.916666666666666) internal successors, (179), 13 states have internal predecessors, (179), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-27 20:06:13,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:13,172 INFO L93 Difference]: Finished difference Result 11956 states and 13084 transitions. [2024-11-27 20:06:13,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-27 20:06:13,172 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 14.916666666666666) internal successors, (179), 13 states have internal predecessors, (179), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 295 [2024-11-27 20:06:13,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:13,184 INFO L225 Difference]: With dead ends: 11956 [2024-11-27 20:06:13,185 INFO L226 Difference]: Without dead ends: 11952 [2024-11-27 20:06:13,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=352, Invalid=1370, Unknown=0, NotChecked=0, Total=1722 [2024-11-27 20:06:13,187 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 246 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:13,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 446 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:06:13,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11952 states. [2024-11-27 20:06:13,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11952 to 11945. [2024-11-27 20:06:13,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11945 states, 11310 states have (on average 1.0449160035366931) internal successors, (11818), 11313 states have internal predecessors, (11818), 629 states have call successors, (629), 2 states have call predecessors, (629), 2 states have return successors, (629), 629 states have call predecessors, (629), 629 states have call successors, (629) [2024-11-27 20:06:13,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11945 states to 11945 states and 13076 transitions. [2024-11-27 20:06:13,926 INFO L78 Accepts]: Start accepts. Automaton has 11945 states and 13076 transitions. Word has length 295 [2024-11-27 20:06:13,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:13,927 INFO L471 AbstractCegarLoop]: Abstraction has 11945 states and 13076 transitions. [2024-11-27 20:06:13,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 14.916666666666666) internal successors, (179), 13 states have internal predecessors, (179), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-27 20:06:13,928 INFO L276 IsEmpty]: Start isEmpty. Operand 11945 states and 13076 transitions. [2024-11-27 20:06:13,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-11-27 20:06:13,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:13,933 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:13,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-27 20:06:14,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:14,138 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:06:14,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:14,139 INFO L85 PathProgramCache]: Analyzing trace with hash 772134963, now seen corresponding path program 16 times [2024-11-27 20:06:14,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:14,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380232517] [2024-11-27 20:06:14,139 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:06:14,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:14,186 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:06:14,187 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:06:14,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1788 backedges. 357 proven. 1115 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-27 20:06:14,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:14,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380232517] [2024-11-27 20:06:14,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380232517] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:14,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340099374] [2024-11-27 20:06:14,798 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:06:14,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:14,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:14,801 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:14,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-27 20:06:14,950 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:06:14,951 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:06:14,954 INFO L256 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:06:14,959 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:15,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1788 backedges. 457 proven. 1015 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-27 20:06:15,791 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:06:16,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1788 backedges. 457 proven. 1015 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-27 20:06:16,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340099374] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:06:16,345 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:06:16,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 23 [2024-11-27 20:06:16,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586496781] [2024-11-27 20:06:16,346 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:06:16,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-27 20:06:16,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:16,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-27 20:06:16,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2024-11-27 20:06:16,348 INFO L87 Difference]: Start difference. First operand 11945 states and 13076 transitions. Second operand has 23 states, 23 states have (on average 16.217391304347824) internal successors, (373), 23 states have internal predecessors, (373), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-27 20:06:18,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:18,510 INFO L93 Difference]: Finished difference Result 25313 states and 27763 transitions. [2024-11-27 20:06:18,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 20:06:18,510 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 16.217391304347824) internal successors, (373), 23 states have internal predecessors, (373), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) Word has length 318 [2024-11-27 20:06:18,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:18,533 INFO L225 Difference]: With dead ends: 25313 [2024-11-27 20:06:18,534 INFO L226 Difference]: Without dead ends: 18801 [2024-11-27 20:06:18,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 615 SyntacticMatches, 14 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=214, Invalid=656, Unknown=0, NotChecked=0, Total=870 [2024-11-27 20:06:18,543 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 53 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:18,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 992 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:06:18,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18801 states. [2024-11-27 20:06:19,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18801 to 14123. [2024-11-27 20:06:19,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14123 states, 13374 states have (on average 1.0403020786600867) internal successors, (13913), 13377 states have internal predecessors, (13913), 743 states have call successors, (743), 2 states have call predecessors, (743), 2 states have return successors, (743), 743 states have call predecessors, (743), 743 states have call successors, (743) [2024-11-27 20:06:19,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14123 states to 14123 states and 15399 transitions. [2024-11-27 20:06:19,506 INFO L78 Accepts]: Start accepts. Automaton has 14123 states and 15399 transitions. Word has length 318 [2024-11-27 20:06:19,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:19,507 INFO L471 AbstractCegarLoop]: Abstraction has 14123 states and 15399 transitions. [2024-11-27 20:06:19,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 16.217391304347824) internal successors, (373), 23 states have internal predecessors, (373), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-27 20:06:19,507 INFO L276 IsEmpty]: Start isEmpty. Operand 14123 states and 15399 transitions. [2024-11-27 20:06:19,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-11-27 20:06:19,510 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:19,510 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:19,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-11-27 20:06:19,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-27 20:06:19,711 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:06:19,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:19,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1250776239, now seen corresponding path program 17 times [2024-11-27 20:06:19,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:19,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993494559] [2024-11-27 20:06:19,712 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:06:19,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:19,757 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2024-11-27 20:06:19,757 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:06:20,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1756 backedges. 869 proven. 463 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-27 20:06:20,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:20,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993494559] [2024-11-27 20:06:20,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993494559] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:20,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475454459] [2024-11-27 20:06:20,177 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:06:20,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:20,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:20,179 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:20,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-27 20:06:20,323 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2024-11-27 20:06:20,323 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:06:20,325 INFO L256 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 20:06:20,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:20,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1756 backedges. 972 proven. 408 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-11-27 20:06:20,886 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:06:21,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1756 backedges. 850 proven. 482 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-27 20:06:21,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475454459] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:06:21,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:06:21,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2024-11-27 20:06:21,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242842735] [2024-11-27 20:06:21,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:06:21,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 20:06:21,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:21,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 20:06:21,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:06:21,222 INFO L87 Difference]: Start difference. First operand 14123 states and 15399 transitions. Second operand has 15 states, 15 states have (on average 18.0) internal successors, (270), 15 states have internal predecessors, (270), 14 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 14 states have call predecessors, (17), 14 states have call successors, (17) [2024-11-27 20:06:22,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:22,570 INFO L93 Difference]: Finished difference Result 23109 states and 25219 transitions. [2024-11-27 20:06:22,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:06:22,571 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 18.0) internal successors, (270), 15 states have internal predecessors, (270), 14 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 14 states have call predecessors, (17), 14 states have call successors, (17) Word has length 318 [2024-11-27 20:06:22,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:22,588 INFO L225 Difference]: With dead ends: 23109 [2024-11-27 20:06:22,588 INFO L226 Difference]: Without dead ends: 14449 [2024-11-27 20:06:22,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 632 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:06:22,600 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 13 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:22,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 804 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:06:22,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14449 states. [2024-11-27 20:06:23,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14449 to 14446. [2024-11-27 20:06:23,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14446 states, 13680 states have (on average 1.0392543859649124) internal successors, (14217), 13683 states have internal predecessors, (14217), 760 states have call successors, (760), 2 states have call predecessors, (760), 2 states have return successors, (760), 760 states have call predecessors, (760), 760 states have call successors, (760) [2024-11-27 20:06:23,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14446 states to 14446 states and 15737 transitions. [2024-11-27 20:06:23,488 INFO L78 Accepts]: Start accepts. Automaton has 14446 states and 15737 transitions. Word has length 318 [2024-11-27 20:06:23,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:23,488 INFO L471 AbstractCegarLoop]: Abstraction has 14446 states and 15737 transitions. [2024-11-27 20:06:23,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 18.0) internal successors, (270), 15 states have internal predecessors, (270), 14 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 14 states have call predecessors, (17), 14 states have call successors, (17) [2024-11-27 20:06:23,488 INFO L276 IsEmpty]: Start isEmpty. Operand 14446 states and 15737 transitions. [2024-11-27 20:06:23,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-27 20:06:23,492 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:23,492 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:23,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-11-27 20:06:23,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-27 20:06:23,692 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:06:23,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:23,693 INFO L85 PathProgramCache]: Analyzing trace with hash 472293316, now seen corresponding path program 18 times [2024-11-27 20:06:23,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:23,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420910066] [2024-11-27 20:06:23,693 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 20:06:23,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:23,745 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2024-11-27 20:06:23,745 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:06:23,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1828107308] [2024-11-27 20:06:23,748 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 20:06:23,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:23,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:23,750 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:23,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-27 20:06:24,046 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2024-11-27 20:06:24,046 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:06:24,049 INFO L256 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 20:06:24,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:26,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2085 backedges. 0 proven. 1342 refuted. 0 times theorem prover too weak. 743 trivial. 0 not checked. [2024-11-27 20:06:26,602 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:06:26,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:26,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420910066] [2024-11-27 20:06:26,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:06:26,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828107308] [2024-11-27 20:06:26,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828107308] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:26,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:06:26,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-27 20:06:26,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185362644] [2024-11-27 20:06:26,812 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:06:26,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 20:06:26,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:26,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 20:06:26,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:06:26,813 INFO L87 Difference]: Start difference. First operand 14446 states and 15737 transitions. Second operand has 18 states, 17 states have (on average 9.647058823529411) internal successors, (164), 18 states have internal predecessors, (164), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-27 20:06:28,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:28,852 INFO L93 Difference]: Finished difference Result 15174 states and 16527 transitions. [2024-11-27 20:06:28,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 20:06:28,853 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 9.647058823529411) internal successors, (164), 18 states have internal predecessors, (164), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 341 [2024-11-27 20:06:28,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:28,871 INFO L225 Difference]: With dead ends: 15174 [2024-11-27 20:06:28,871 INFO L226 Difference]: Without dead ends: 15170 [2024-11-27 20:06:28,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:06:28,876 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 22 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:28,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 892 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:06:28,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15170 states. [2024-11-27 20:06:29,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15170 to 14560. [2024-11-27 20:06:29,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14560 states, 13788 states have (on average 1.038946910356832) internal successors, (14325), 13791 states have internal predecessors, (14325), 766 states have call successors, (766), 2 states have call predecessors, (766), 2 states have return successors, (766), 766 states have call predecessors, (766), 766 states have call successors, (766) [2024-11-27 20:06:29,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14560 states to 14560 states and 15857 transitions. [2024-11-27 20:06:29,754 INFO L78 Accepts]: Start accepts. Automaton has 14560 states and 15857 transitions. Word has length 341 [2024-11-27 20:06:29,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:29,755 INFO L471 AbstractCegarLoop]: Abstraction has 14560 states and 15857 transitions. [2024-11-27 20:06:29,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 9.647058823529411) internal successors, (164), 18 states have internal predecessors, (164), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-27 20:06:29,755 INFO L276 IsEmpty]: Start isEmpty. Operand 14560 states and 15857 transitions. [2024-11-27 20:06:29,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-27 20:06:29,758 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:29,759 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:29,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-27 20:06:29,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:29,959 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:06:29,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:29,960 INFO L85 PathProgramCache]: Analyzing trace with hash -589216194, now seen corresponding path program 19 times [2024-11-27 20:06:29,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:29,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022425983] [2024-11-27 20:06:29,960 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:06:29,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:06:30,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1488130085] [2024-11-27 20:06:30,012 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:06:30,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:30,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:30,015 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:30,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-27 20:06:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:30,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-27 20:06:30,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:35,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1985 backedges. 69 proven. 1623 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2024-11-27 20:06:35,790 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:06:36,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:36,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022425983] [2024-11-27 20:06:36,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:06:36,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488130085] [2024-11-27 20:06:36,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488130085] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:36,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:06:36,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2024-11-27 20:06:36,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973631224] [2024-11-27 20:06:36,428 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:06:36,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-27 20:06:36,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:36,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-27 20:06:36,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=409, Invalid=2041, Unknown=0, NotChecked=0, Total=2450 [2024-11-27 20:06:36,431 INFO L87 Difference]: Start difference. First operand 14560 states and 15857 transitions. Second operand has 45 states, 43 states have (on average 6.348837209302325) internal successors, (273), 42 states have internal predecessors, (273), 16 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-27 20:06:44,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:44,767 INFO L93 Difference]: Finished difference Result 14564 states and 15859 transitions. [2024-11-27 20:06:44,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-11-27 20:06:44,768 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 43 states have (on average 6.348837209302325) internal successors, (273), 42 states have internal predecessors, (273), 16 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) Word has length 341 [2024-11-27 20:06:44,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:44,787 INFO L225 Difference]: With dead ends: 14564 [2024-11-27 20:06:44,787 INFO L226 Difference]: Without dead ends: 14560 [2024-11-27 20:06:44,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2865 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=1545, Invalid=8157, Unknown=0, NotChecked=0, Total=9702 [2024-11-27 20:06:44,793 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 339 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 2876 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:44,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 1172 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2876 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-27 20:06:44,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14560 states. [2024-11-27 20:06:45,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14560 to 14560. [2024-11-27 20:06:45,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14560 states, 13788 states have (on average 1.0388018566869741) internal successors, (14323), 13791 states have internal predecessors, (14323), 766 states have call successors, (766), 2 states have call predecessors, (766), 2 states have return successors, (766), 766 states have call predecessors, (766), 766 states have call successors, (766) [2024-11-27 20:06:45,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14560 states to 14560 states and 15855 transitions. [2024-11-27 20:06:45,656 INFO L78 Accepts]: Start accepts. Automaton has 14560 states and 15855 transitions. Word has length 341 [2024-11-27 20:06:45,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:45,657 INFO L471 AbstractCegarLoop]: Abstraction has 14560 states and 15855 transitions. [2024-11-27 20:06:45,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 43 states have (on average 6.348837209302325) internal successors, (273), 42 states have internal predecessors, (273), 16 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-27 20:06:45,657 INFO L276 IsEmpty]: Start isEmpty. Operand 14560 states and 15855 transitions. [2024-11-27 20:06:45,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-11-27 20:06:45,661 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:45,661 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 13, 13, 13, 13, 13, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:45,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-11-27 20:06:45,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-27 20:06:45,862 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:06:45,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:45,863 INFO L85 PathProgramCache]: Analyzing trace with hash -646630937, now seen corresponding path program 20 times [2024-11-27 20:06:45,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:45,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535062629] [2024-11-27 20:06:45,863 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:06:45,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:45,895 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:06:45,895 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:06:46,620 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 498 proven. 1483 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-27 20:06:46,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:46,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535062629] [2024-11-27 20:06:46,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535062629] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:46,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359485209] [2024-11-27 20:06:46,621 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:06:46,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:46,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:46,623 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:46,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-27 20:06:46,764 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:06:46,764 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:06:46,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 20:06:46,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:47,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 598 proven. 1383 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-27 20:06:47,779 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:06:48,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 598 proven. 1383 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-27 20:06:48,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359485209] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:06:48,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:06:48,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 27 [2024-11-27 20:06:48,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429822301] [2024-11-27 20:06:48,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:06:48,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-27 20:06:48,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:48,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-27 20:06:48,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2024-11-27 20:06:48,486 INFO L87 Difference]: Start difference. First operand 14560 states and 15855 transitions. Second operand has 27 states, 27 states have (on average 16.51851851851852) internal successors, (446), 27 states have internal predecessors, (446), 25 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) [2024-11-27 20:06:50,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:50,724 INFO L93 Difference]: Finished difference Result 27918 states and 30458 transitions. [2024-11-27 20:06:50,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 20:06:50,725 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 16.51851851851852) internal successors, (446), 27 states have internal predecessors, (446), 25 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) Word has length 364 [2024-11-27 20:06:50,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:50,751 INFO L225 Difference]: With dead ends: 27918 [2024-11-27 20:06:50,752 INFO L226 Difference]: Without dead ends: 21416 [2024-11-27 20:06:50,762 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 751 GetRequests, 704 SyntacticMatches, 15 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=272, Invalid=850, Unknown=0, NotChecked=0, Total=1122 [2024-11-27 20:06:50,763 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 43 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:50,763 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 1237 Invalid, 1488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:06:50,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21416 states. [2024-11-27 20:06:51,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21416 to 17099. [2024-11-27 20:06:51,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17099 states, 16194 states have (on average 1.0350129677658393) internal successors, (16761), 16197 states have internal predecessors, (16761), 899 states have call successors, (899), 2 states have call predecessors, (899), 2 states have return successors, (899), 899 states have call predecessors, (899), 899 states have call successors, (899) [2024-11-27 20:06:51,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17099 states to 17099 states and 18559 transitions. [2024-11-27 20:06:51,800 INFO L78 Accepts]: Start accepts. Automaton has 17099 states and 18559 transitions. Word has length 364 [2024-11-27 20:06:51,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:51,801 INFO L471 AbstractCegarLoop]: Abstraction has 17099 states and 18559 transitions. [2024-11-27 20:06:51,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 16.51851851851852) internal successors, (446), 27 states have internal predecessors, (446), 25 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) [2024-11-27 20:06:51,801 INFO L276 IsEmpty]: Start isEmpty. Operand 17099 states and 18559 transitions. [2024-11-27 20:06:51,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-11-27 20:06:51,807 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:51,807 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:51,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-11-27 20:06:52,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-27 20:06:52,008 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:06:52,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:52,008 INFO L85 PathProgramCache]: Analyzing trace with hash 851287261, now seen corresponding path program 21 times [2024-11-27 20:06:52,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:52,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238664012] [2024-11-27 20:06:52,009 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:06:52,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:52,078 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2024-11-27 20:06:52,078 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:06:52,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [953612018] [2024-11-27 20:06:52,080 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:06:52,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:52,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:52,083 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:52,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-27 20:06:52,209 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-27 20:06:52,209 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:06:52,211 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:06:52,215 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:52,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2365 backedges. 946 proven. 206 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2024-11-27 20:06:52,711 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:06:53,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:53,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238664012] [2024-11-27 20:06:53,001 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:06:53,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953612018] [2024-11-27 20:06:53,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953612018] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:53,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:06:53,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-27 20:06:53,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346325692] [2024-11-27 20:06:53,002 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:06:53,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:06:53,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:53,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:06:53,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:06:53,005 INFO L87 Difference]: Start difference. First operand 17099 states and 18559 transitions. Second operand has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-27 20:06:54,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:54,648 INFO L93 Difference]: Finished difference Result 29813 states and 32369 transitions. [2024-11-27 20:06:54,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:06:54,648 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 364 [2024-11-27 20:06:54,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:54,681 INFO L225 Difference]: With dead ends: 29813 [2024-11-27 20:06:54,682 INFO L226 Difference]: Without dead ends: 17004 [2024-11-27 20:06:54,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:06:54,702 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 102 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:54,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 679 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:06:54,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17004 states. [2024-11-27 20:06:56,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17004 to 17004. [2024-11-27 20:06:56,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17004 states, 16104 states have (on average 1.033842523596622) internal successors, (16649), 16107 states have internal predecessors, (16649), 894 states have call successors, (894), 2 states have call predecessors, (894), 2 states have return successors, (894), 894 states have call predecessors, (894), 894 states have call successors, (894) [2024-11-27 20:06:56,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17004 states to 17004 states and 18437 transitions. [2024-11-27 20:06:56,083 INFO L78 Accepts]: Start accepts. Automaton has 17004 states and 18437 transitions. Word has length 364 [2024-11-27 20:06:56,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:56,084 INFO L471 AbstractCegarLoop]: Abstraction has 17004 states and 18437 transitions. [2024-11-27 20:06:56,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-27 20:06:56,084 INFO L276 IsEmpty]: Start isEmpty. Operand 17004 states and 18437 transitions. [2024-11-27 20:06:56,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-11-27 20:06:56,091 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:56,092 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:56,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-11-27 20:06:56,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2024-11-27 20:06:56,292 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:06:56,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:56,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1023662493, now seen corresponding path program 22 times [2024-11-27 20:06:56,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:56,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404640303] [2024-11-27 20:06:56,293 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:06:56,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:56,362 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:06:56,362 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:06:56,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1822738300] [2024-11-27 20:06:56,365 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:06:56,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:56,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:56,368 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:56,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-27 20:06:56,552 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:06:56,552 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:06:56,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-27 20:06:56,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:00,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2309 backedges. 63 proven. 1885 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2024-11-27 20:07:00,976 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:01,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:01,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404640303] [2024-11-27 20:07:01,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:07:01,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822738300] [2024-11-27 20:07:01,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822738300] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:01,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:01,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2024-11-27 20:07:01,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094441574] [2024-11-27 20:07:01,243 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:01,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-27 20:07:01,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:01,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-27 20:07:01,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=776, Unknown=1, NotChecked=0, Total=870 [2024-11-27 20:07:01,244 INFO L87 Difference]: Start difference. First operand 17004 states and 18437 transitions. Second operand has 28 states, 27 states have (on average 8.185185185185185) internal successors, (221), 28 states have internal predecessors, (221), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-27 20:07:18,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:07:34,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:34,406 INFO L93 Difference]: Finished difference Result 19355 states and 20967 transitions. [2024-11-27 20:07:34,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-27 20:07:34,406 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 8.185185185185185) internal successors, (221), 28 states have internal predecessors, (221), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) Word has length 364 [2024-11-27 20:07:34,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:34,430 INFO L225 Difference]: With dead ends: 19355 [2024-11-27 20:07:34,431 INFO L226 Difference]: Without dead ends: 19351 [2024-11-27 20:07:34,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1403 ImplicationChecksByTransitivity, 23.8s TimeCoverageRelationStatistics Valid=775, Invalid=4772, Unknown=3, NotChecked=0, Total=5550 [2024-11-27 20:07:34,437 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 467 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 2154 mSolverCounterSat, 52 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2154 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:34,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 957 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2154 Invalid, 5 Unknown, 0 Unchecked, 10.1s Time] [2024-11-27 20:07:34,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19351 states. [2024-11-27 20:07:35,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19351 to 18694. [2024-11-27 20:07:35,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18694 states, 17707 states have (on average 1.0330377816682668) internal successors, (18292), 17710 states have internal predecessors, (18292), 981 states have call successors, (981), 2 states have call predecessors, (981), 2 states have return successors, (981), 981 states have call predecessors, (981), 981 states have call successors, (981) [2024-11-27 20:07:35,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18694 states to 18694 states and 20254 transitions. [2024-11-27 20:07:35,613 INFO L78 Accepts]: Start accepts. Automaton has 18694 states and 20254 transitions. Word has length 364 [2024-11-27 20:07:35,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:35,614 INFO L471 AbstractCegarLoop]: Abstraction has 18694 states and 20254 transitions. [2024-11-27 20:07:35,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 8.185185185185185) internal successors, (221), 28 states have internal predecessors, (221), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-27 20:07:35,614 INFO L276 IsEmpty]: Start isEmpty. Operand 18694 states and 20254 transitions. [2024-11-27 20:07:35,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2024-11-27 20:07:35,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:35,619 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:35,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:35,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:35,819 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:07:35,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:35,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1080321136, now seen corresponding path program 23 times [2024-11-27 20:07:35,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:35,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633555664] [2024-11-27 20:07:35,820 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:07:35,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:35,881 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2024-11-27 20:07:35,881 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:07:35,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [170017377] [2024-11-27 20:07:35,884 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:07:35,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:35,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:35,887 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:35,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-27 20:07:36,122 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2024-11-27 20:07:36,122 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:07:36,126 INFO L256 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-27 20:07:36,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:38,342 INFO L134 CoverageAnalysis]: Checked inductivity of 2748 backedges. 24 proven. 2285 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2024-11-27 20:07:38,343 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:38,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:38,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633555664] [2024-11-27 20:07:38,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:07:38,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170017377] [2024-11-27 20:07:38,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170017377] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:38,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:38,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2024-11-27 20:07:38,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077929] [2024-11-27 20:07:38,758 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:38,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-27 20:07:38,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:38,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-27 20:07:38,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1081, Unknown=0, NotChecked=0, Total=1190 [2024-11-27 20:07:38,759 INFO L87 Difference]: Start difference. First operand 18694 states and 20254 transitions. Second operand has 32 states, 31 states have (on average 9.870967741935484) internal successors, (306), 32 states have internal predecessors, (306), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-27 20:07:44,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:44,404 INFO L93 Difference]: Finished difference Result 19215 states and 20814 transitions. [2024-11-27 20:07:44,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-27 20:07:44,405 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 9.870967741935484) internal successors, (306), 32 states have internal predecessors, (306), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) Word has length 387 [2024-11-27 20:07:44,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:44,427 INFO L225 Difference]: With dead ends: 19215 [2024-11-27 20:07:44,427 INFO L226 Difference]: Without dead ends: 19211 [2024-11-27 20:07:44,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=115, Invalid=1145, Unknown=0, NotChecked=0, Total=1260 [2024-11-27 20:07:44,431 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 28 mSDsluCounter, 2931 mSDsCounter, 0 mSdLazyCounter, 6442 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 6444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:44,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 3088 Invalid, 6444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6442 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-27 20:07:44,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19211 states. [2024-11-27 20:07:45,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19211 to 18846. [2024-11-27 20:07:45,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18846 states, 17851 states have (on average 1.0328272925886506) internal successors, (18437), 17854 states have internal predecessors, (18437), 989 states have call successors, (989), 2 states have call predecessors, (989), 2 states have return successors, (989), 989 states have call predecessors, (989), 989 states have call successors, (989) [2024-11-27 20:07:45,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18846 states to 18846 states and 20415 transitions. [2024-11-27 20:07:45,524 INFO L78 Accepts]: Start accepts. Automaton has 18846 states and 20415 transitions. Word has length 387 [2024-11-27 20:07:45,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:45,525 INFO L471 AbstractCegarLoop]: Abstraction has 18846 states and 20415 transitions. [2024-11-27 20:07:45,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 9.870967741935484) internal successors, (306), 32 states have internal predecessors, (306), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-27 20:07:45,525 INFO L276 IsEmpty]: Start isEmpty. Operand 18846 states and 20415 transitions. [2024-11-27 20:07:45,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2024-11-27 20:07:45,531 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:45,531 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:45,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-11-27 20:07:45,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:45,732 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:07:45,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:45,732 INFO L85 PathProgramCache]: Analyzing trace with hash -836629636, now seen corresponding path program 24 times [2024-11-27 20:07:45,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:45,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63486475] [2024-11-27 20:07:45,733 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 20:07:45,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:45,792 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2024-11-27 20:07:45,793 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:07:45,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2055757953] [2024-11-27 20:07:45,795 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 20:07:45,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:45,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:45,798 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:45,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-27 20:07:46,164 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2024-11-27 20:07:46,164 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:07:46,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-27 20:07:46,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:47,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2668 backedges. 156 proven. 1941 refuted. 0 times theorem prover too weak. 571 trivial. 0 not checked. [2024-11-27 20:07:47,988 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:48,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:48,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63486475] [2024-11-27 20:07:48,240 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:07:48,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055757953] [2024-11-27 20:07:48,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055757953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:48,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:48,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2024-11-27 20:07:48,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370766124] [2024-11-27 20:07:48,241 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:48,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 20:07:48,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:48,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 20:07:48,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2024-11-27 20:07:48,242 INFO L87 Difference]: Start difference. First operand 18846 states and 20415 transitions. Second operand has 22 states, 21 states have (on average 10.380952380952381) internal successors, (218), 22 states have internal predecessors, (218), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-27 20:07:50,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:50,510 INFO L93 Difference]: Finished difference Result 18918 states and 20489 transitions. [2024-11-27 20:07:50,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-27 20:07:50,510 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.380952380952381) internal successors, (218), 22 states have internal predecessors, (218), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) Word has length 387 [2024-11-27 20:07:50,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:50,533 INFO L225 Difference]: With dead ends: 18918 [2024-11-27 20:07:50,533 INFO L226 Difference]: Without dead ends: 18914 [2024-11-27 20:07:50,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=221, Invalid=901, Unknown=0, NotChecked=0, Total=1122 [2024-11-27 20:07:50,539 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 25 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 1753 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 1756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:50,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 939 Invalid, 1756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1753 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 20:07:50,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18914 states. [2024-11-27 20:07:51,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18914 to 18684. [2024-11-27 20:07:51,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18684 states, 17697 states have (on average 1.0329999434932475) internal successors, (18281), 17700 states have internal predecessors, (18281), 981 states have call successors, (981), 2 states have call predecessors, (981), 2 states have return successors, (981), 981 states have call predecessors, (981), 981 states have call successors, (981) [2024-11-27 20:07:51,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18684 states to 18684 states and 20243 transitions. [2024-11-27 20:07:51,595 INFO L78 Accepts]: Start accepts. Automaton has 18684 states and 20243 transitions. Word has length 387 [2024-11-27 20:07:51,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:51,595 INFO L471 AbstractCegarLoop]: Abstraction has 18684 states and 20243 transitions. [2024-11-27 20:07:51,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.380952380952381) internal successors, (218), 22 states have internal predecessors, (218), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-27 20:07:51,596 INFO L276 IsEmpty]: Start isEmpty. Operand 18684 states and 20243 transitions. [2024-11-27 20:07:51,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2024-11-27 20:07:51,603 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:51,604 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:51,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-11-27 20:07:51,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:51,804 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:07:51,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:51,805 INFO L85 PathProgramCache]: Analyzing trace with hash 45198164, now seen corresponding path program 25 times [2024-11-27 20:07:51,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:51,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715386741] [2024-11-27 20:07:51,805 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:07:51,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:07:51,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [907671493] [2024-11-27 20:07:51,857 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:07:51,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:51,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:51,860 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:51,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-27 20:07:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:52,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-27 20:07:52,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:57,069 INFO L134 CoverageAnalysis]: Checked inductivity of 2604 backedges. 45 proven. 2123 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2024-11-27 20:07:57,069 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:57,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:57,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715386741] [2024-11-27 20:07:57,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:07:57,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907671493] [2024-11-27 20:07:57,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907671493] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:57,625 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:57,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2024-11-27 20:07:57,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760117976] [2024-11-27 20:07:57,626 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:57,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-27 20:07:57,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:57,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-27 20:07:57,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=513, Invalid=1937, Unknown=0, NotChecked=0, Total=2450 [2024-11-27 20:07:57,628 INFO L87 Difference]: Start difference. First operand 18684 states and 20243 transitions. Second operand has 45 states, 43 states have (on average 7.186046511627907) internal successors, (309), 43 states have internal predecessors, (309), 18 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-27 20:08:04,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:04,052 INFO L93 Difference]: Finished difference Result 18688 states and 20245 transitions. [2024-11-27 20:08:04,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-11-27 20:08:04,052 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 43 states have (on average 7.186046511627907) internal successors, (309), 43 states have internal predecessors, (309), 18 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) Word has length 387 [2024-11-27 20:08:04,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:04,074 INFO L225 Difference]: With dead ends: 18688 [2024-11-27 20:08:04,074 INFO L226 Difference]: Without dead ends: 18684 [2024-11-27 20:08:04,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3750 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=2500, Invalid=9272, Unknown=0, NotChecked=0, Total=11772 [2024-11-27 20:08:04,081 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 279 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 1499 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:04,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 614 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1499 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 20:08:04,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18684 states. [2024-11-27 20:08:05,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18684 to 18684. [2024-11-27 20:08:05,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18684 states, 17697 states have (on average 1.0328869299881336) internal successors, (18279), 17700 states have internal predecessors, (18279), 981 states have call successors, (981), 2 states have call predecessors, (981), 2 states have return successors, (981), 981 states have call predecessors, (981), 981 states have call successors, (981) [2024-11-27 20:08:05,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18684 states to 18684 states and 20241 transitions. [2024-11-27 20:08:05,175 INFO L78 Accepts]: Start accepts. Automaton has 18684 states and 20241 transitions. Word has length 387 [2024-11-27 20:08:05,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:05,176 INFO L471 AbstractCegarLoop]: Abstraction has 18684 states and 20241 transitions. [2024-11-27 20:08:05,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 43 states have (on average 7.186046511627907) internal successors, (309), 43 states have internal predecessors, (309), 18 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-27 20:08:05,176 INFO L276 IsEmpty]: Start isEmpty. Operand 18684 states and 20241 transitions. [2024-11-27 20:08:05,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2024-11-27 20:08:05,181 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:05,181 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:05,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-11-27 20:08:05,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2024-11-27 20:08:05,382 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:08:05,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:05,382 INFO L85 PathProgramCache]: Analyzing trace with hash 502130803, now seen corresponding path program 26 times [2024-11-27 20:08:05,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:05,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236988917] [2024-11-27 20:08:05,382 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:08:05,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:05,410 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:08:05,410 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:08:06,294 INFO L134 CoverageAnalysis]: Checked inductivity of 3114 backedges. 641 proven. 1925 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-27 20:08:06,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:06,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236988917] [2024-11-27 20:08:06,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236988917] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:08:06,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061013093] [2024-11-27 20:08:06,295 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:08:06,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:06,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:06,297 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:08:06,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-27 20:08:06,459 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:08:06,460 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:08:06,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 20:08:06,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:07,575 INFO L134 CoverageAnalysis]: Checked inductivity of 3114 backedges. 758 proven. 1808 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-27 20:08:07,576 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:08,468 INFO L134 CoverageAnalysis]: Checked inductivity of 3114 backedges. 758 proven. 1808 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-27 20:08:08,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061013093] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:08:08,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:08:08,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 30 [2024-11-27 20:08:08,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643380353] [2024-11-27 20:08:08,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:08:08,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-27 20:08:08,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:08,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-27 20:08:08,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=657, Unknown=0, NotChecked=0, Total=870 [2024-11-27 20:08:08,471 INFO L87 Difference]: Start difference. First operand 18684 states and 20241 transitions. Second operand has 30 states, 30 states have (on average 16.666666666666668) internal successors, (500), 30 states have internal predecessors, (500), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-27 20:08:11,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:11,422 INFO L93 Difference]: Finished difference Result 33350 states and 36230 transitions. [2024-11-27 20:08:11,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 20:08:11,423 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 16.666666666666668) internal successors, (500), 30 states have internal predecessors, (500), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) Word has length 410 [2024-11-27 20:08:11,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:11,456 INFO L225 Difference]: With dead ends: 33350 [2024-11-27 20:08:11,457 INFO L226 Difference]: Without dead ends: 26478 [2024-11-27 20:08:11,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 846 GetRequests, 793 SyntacticMatches, 17 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=337, Invalid=1069, Unknown=0, NotChecked=0, Total=1406 [2024-11-27 20:08:11,469 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 59 mSDsluCounter, 1478 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 2162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:11,469 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1678 Invalid, 2162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2159 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 20:08:11,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26478 states. [2024-11-27 20:08:12,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26478 to 21898. [2024-11-27 20:08:12,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21898 states, 20743 states have (on average 1.0296003471050474) internal successors, (21357), 20746 states have internal predecessors, (21357), 1149 states have call successors, (1149), 2 states have call predecessors, (1149), 2 states have return successors, (1149), 1149 states have call predecessors, (1149), 1149 states have call successors, (1149) [2024-11-27 20:08:12,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21898 states to 21898 states and 23655 transitions. [2024-11-27 20:08:12,889 INFO L78 Accepts]: Start accepts. Automaton has 21898 states and 23655 transitions. Word has length 410 [2024-11-27 20:08:12,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:12,889 INFO L471 AbstractCegarLoop]: Abstraction has 21898 states and 23655 transitions. [2024-11-27 20:08:12,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 16.666666666666668) internal successors, (500), 30 states have internal predecessors, (500), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-27 20:08:12,889 INFO L276 IsEmpty]: Start isEmpty. Operand 21898 states and 23655 transitions. [2024-11-27 20:08:12,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2024-11-27 20:08:12,894 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:12,894 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:12,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-27 20:08:13,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-11-27 20:08:13,095 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:08:13,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:13,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1331061703, now seen corresponding path program 27 times [2024-11-27 20:08:13,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:13,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559523634] [2024-11-27 20:08:13,095 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:08:13,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:13,160 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2024-11-27 20:08:13,161 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:08:13,988 INFO L134 CoverageAnalysis]: Checked inductivity of 3114 backedges. 758 proven. 1808 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-27 20:08:13,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:13,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559523634] [2024-11-27 20:08:13,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559523634] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:08:13,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440720930] [2024-11-27 20:08:13,988 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:08:13,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:13,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:13,991 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:08:13,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-27 20:08:14,131 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-27 20:08:14,131 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:08:14,133 INFO L256 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 20:08:14,136 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:15,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3114 backedges. 0 proven. 2062 refuted. 0 times theorem prover too weak. 1052 trivial. 0 not checked. [2024-11-27 20:08:15,493 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:15,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440720930] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:08:15,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:08:15,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 13] total 32 [2024-11-27 20:08:15,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938672184] [2024-11-27 20:08:15,866 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:08:15,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-27 20:08:15,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:15,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-27 20:08:15,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1008, Unknown=0, NotChecked=0, Total=1190 [2024-11-27 20:08:15,868 INFO L87 Difference]: Start difference. First operand 21898 states and 23655 transitions. Second operand has 32 states, 32 states have (on average 16.03125) internal successors, (513), 32 states have internal predecessors, (513), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-27 20:08:22,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:22,274 INFO L93 Difference]: Finished difference Result 33336 states and 36175 transitions. [2024-11-27 20:08:22,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-11-27 20:08:22,274 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 16.03125) internal successors, (513), 32 states have internal predecessors, (513), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) Word has length 410 [2024-11-27 20:08:22,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:22,307 INFO L225 Difference]: With dead ends: 33336 [2024-11-27 20:08:22,308 INFO L226 Difference]: Without dead ends: 25543 [2024-11-27 20:08:22,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2089 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=844, Invalid=6296, Unknown=0, NotChecked=0, Total=7140 [2024-11-27 20:08:22,321 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 680 mSDsluCounter, 2668 mSDsCounter, 0 mSdLazyCounter, 4490 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 2935 SdHoareTripleChecker+Invalid, 4544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 4490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:22,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 2935 Invalid, 4544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 4490 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-27 20:08:22,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25543 states. [2024-11-27 20:08:23,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25543 to 20335. [2024-11-27 20:08:23,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20335 states, 19261 states have (on average 1.0279320907533358) internal successors, (19799), 19264 states have internal predecessors, (19799), 1068 states have call successors, (1068), 2 states have call predecessors, (1068), 2 states have return successors, (1068), 1068 states have call predecessors, (1068), 1068 states have call successors, (1068) [2024-11-27 20:08:23,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20335 states to 20335 states and 21935 transitions. [2024-11-27 20:08:23,629 INFO L78 Accepts]: Start accepts. Automaton has 20335 states and 21935 transitions. Word has length 410 [2024-11-27 20:08:23,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:23,629 INFO L471 AbstractCegarLoop]: Abstraction has 20335 states and 21935 transitions. [2024-11-27 20:08:23,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 16.03125) internal successors, (513), 32 states have internal predecessors, (513), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-27 20:08:23,630 INFO L276 IsEmpty]: Start isEmpty. Operand 20335 states and 21935 transitions. [2024-11-27 20:08:23,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-27 20:08:23,638 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:23,639 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:23,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2024-11-27 20:08:23,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-11-27 20:08:23,839 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:08:23,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:23,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1529578918, now seen corresponding path program 28 times [2024-11-27 20:08:23,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:23,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138771206] [2024-11-27 20:08:23,840 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:08:23,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:23,883 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:08:23,883 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:08:23,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1091706365] [2024-11-27 20:08:23,886 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:08:23,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:23,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:23,889 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:08:23,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-11-27 20:08:24,078 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:08:24,079 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:08:24,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-27 20:08:24,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:28,155 INFO L134 CoverageAnalysis]: Checked inductivity of 3451 backedges. 235 proven. 2718 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2024-11-27 20:08:28,155 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:28,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:28,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138771206] [2024-11-27 20:08:28,463 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:08:28,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091706365] [2024-11-27 20:08:28,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091706365] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:08:28,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:08:28,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2024-11-27 20:08:28,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622651649] [2024-11-27 20:08:28,463 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:08:28,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-27 20:08:28,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:28,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-27 20:08:28,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1299, Unknown=0, NotChecked=0, Total=1482 [2024-11-27 20:08:28,465 INFO L87 Difference]: Start difference. First operand 20335 states and 21935 transitions. Second operand has 37 states, 36 states have (on average 9.083333333333334) internal successors, (327), 37 states have internal predecessors, (327), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-27 20:08:32,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:32,931 INFO L93 Difference]: Finished difference Result 21084 states and 22729 transitions. [2024-11-27 20:08:32,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-27 20:08:32,932 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 9.083333333333334) internal successors, (327), 37 states have internal predecessors, (327), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) Word has length 433 [2024-11-27 20:08:32,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:32,961 INFO L225 Difference]: With dead ends: 21084 [2024-11-27 20:08:32,961 INFO L226 Difference]: Without dead ends: 21080 [2024-11-27 20:08:32,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=249, Invalid=1913, Unknown=0, NotChecked=0, Total=2162 [2024-11-27 20:08:32,964 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 45 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 3511 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 3515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:32,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 1522 Invalid, 3515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3511 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-27 20:08:32,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21080 states. [2024-11-27 20:08:34,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21080 to 20393. [2024-11-27 20:08:34,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20393 states, 19317 states have (on average 1.0278511155976602) internal successors, (19855), 19320 states have internal predecessors, (19855), 1070 states have call successors, (1070), 2 states have call predecessors, (1070), 2 states have return successors, (1070), 1070 states have call predecessors, (1070), 1070 states have call successors, (1070) [2024-11-27 20:08:34,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20393 states to 20393 states and 21995 transitions. [2024-11-27 20:08:34,113 INFO L78 Accepts]: Start accepts. Automaton has 20393 states and 21995 transitions. Word has length 433 [2024-11-27 20:08:34,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:34,114 INFO L471 AbstractCegarLoop]: Abstraction has 20393 states and 21995 transitions. [2024-11-27 20:08:34,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 9.083333333333334) internal successors, (327), 37 states have internal predecessors, (327), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-27 20:08:34,114 INFO L276 IsEmpty]: Start isEmpty. Operand 20393 states and 21995 transitions. [2024-11-27 20:08:34,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-27 20:08:34,119 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:34,119 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:34,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2024-11-27 20:08:34,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-27 20:08:34,320 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:08:34,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:34,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1676541828, now seen corresponding path program 29 times [2024-11-27 20:08:34,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:34,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894649321] [2024-11-27 20:08:34,320 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:08:34,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:34,384 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2024-11-27 20:08:34,384 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:08:34,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [374309785] [2024-11-27 20:08:34,386 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:08:34,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:34,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:34,389 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:08:34,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-27 20:08:34,588 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2024-11-27 20:08:34,589 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:08:34,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 90 conjuncts are in the unsatisfiable core [2024-11-27 20:08:34,596 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:39,349 INFO L134 CoverageAnalysis]: Checked inductivity of 3343 backedges. 108 proven. 2787 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-11-27 20:08:39,350 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:39,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:39,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894649321] [2024-11-27 20:08:39,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:08:39,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374309785] [2024-11-27 20:08:39,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374309785] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:08:39,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:08:39,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2024-11-27 20:08:39,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676045263] [2024-11-27 20:08:39,702 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:08:39,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-27 20:08:39,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:39,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-27 20:08:39,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=2060, Unknown=0, NotChecked=0, Total=2256 [2024-11-27 20:08:39,704 INFO L87 Difference]: Start difference. First operand 20393 states and 21995 transitions. Second operand has 46 states, 45 states have (on average 7.133333333333334) internal successors, (321), 46 states have internal predecessors, (321), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 17 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-27 20:08:44,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:44,554 INFO L93 Difference]: Finished difference Result 28210 states and 30384 transitions. [2024-11-27 20:08:44,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-27 20:08:44,555 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 7.133333333333334) internal successors, (321), 46 states have internal predecessors, (321), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 17 states have call predecessors, (19), 18 states have call successors, (19) Word has length 433 [2024-11-27 20:08:44,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:44,583 INFO L225 Difference]: With dead ends: 28210 [2024-11-27 20:08:44,583 INFO L226 Difference]: Without dead ends: 20249 [2024-11-27 20:08:44,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1023 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=411, Invalid=4011, Unknown=0, NotChecked=0, Total=4422 [2024-11-27 20:08:44,594 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 79 mSDsluCounter, 1482 mSDsCounter, 0 mSdLazyCounter, 3726 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 3744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:44,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1564 Invalid, 3744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3726 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-27 20:08:44,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20249 states. [2024-11-27 20:08:45,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20249 to 19386. [2024-11-27 20:08:45,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19386 states, 18363 states have (on average 1.0285356423242389) internal successors, (18887), 18366 states have internal predecessors, (18887), 1017 states have call successors, (1017), 2 states have call predecessors, (1017), 2 states have return successors, (1017), 1017 states have call predecessors, (1017), 1017 states have call successors, (1017) [2024-11-27 20:08:45,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19386 states to 19386 states and 20921 transitions. [2024-11-27 20:08:45,896 INFO L78 Accepts]: Start accepts. Automaton has 19386 states and 20921 transitions. Word has length 433 [2024-11-27 20:08:45,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:45,896 INFO L471 AbstractCegarLoop]: Abstraction has 19386 states and 20921 transitions. [2024-11-27 20:08:45,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 7.133333333333334) internal successors, (321), 46 states have internal predecessors, (321), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 17 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-27 20:08:45,897 INFO L276 IsEmpty]: Start isEmpty. Operand 19386 states and 20921 transitions. [2024-11-27 20:08:45,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-27 20:08:45,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:45,901 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:45,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-11-27 20:08:46,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-11-27 20:08:46,102 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:08:46,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:46,102 INFO L85 PathProgramCache]: Analyzing trace with hash -971466262, now seen corresponding path program 30 times [2024-11-27 20:08:46,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:46,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628168011] [2024-11-27 20:08:46,103 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 20:08:46,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:46,181 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2024-11-27 20:08:46,181 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:08:46,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1256709830] [2024-11-27 20:08:46,183 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 20:08:46,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:46,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:46,188 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:08:46,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-11-27 20:08:46,458 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2024-11-27 20:08:46,458 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:08:46,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 20:08:46,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:47,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3307 backedges. 0 proven. 2571 refuted. 0 times theorem prover too weak. 736 trivial. 0 not checked. [2024-11-27 20:08:47,740 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:47,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:47,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628168011] [2024-11-27 20:08:47,946 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:08:47,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256709830] [2024-11-27 20:08:47,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256709830] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:08:47,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:08:47,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-27 20:08:47,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758932278] [2024-11-27 20:08:47,946 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:08:47,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 20:08:47,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:47,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 20:08:47,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:08:47,947 INFO L87 Difference]: Start difference. First operand 19386 states and 20921 transitions. Second operand has 14 states, 13 states have (on average 18.076923076923077) internal successors, (235), 14 states have internal predecessors, (235), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-27 20:08:49,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:49,222 INFO L93 Difference]: Finished difference Result 19390 states and 20923 transitions. [2024-11-27 20:08:49,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:08:49,223 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 18.076923076923077) internal successors, (235), 14 states have internal predecessors, (235), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 433 [2024-11-27 20:08:49,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:49,252 INFO L225 Difference]: With dead ends: 19390 [2024-11-27 20:08:49,252 INFO L226 Difference]: Without dead ends: 19386 [2024-11-27 20:08:49,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:08:49,258 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 19 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:49,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 356 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:08:49,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19386 states. [2024-11-27 20:08:50,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19386 to 19386. [2024-11-27 20:08:50,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19386 states, 18363 states have (on average 1.0284267276588792) internal successors, (18885), 18366 states have internal predecessors, (18885), 1017 states have call successors, (1017), 2 states have call predecessors, (1017), 2 states have return successors, (1017), 1017 states have call predecessors, (1017), 1017 states have call successors, (1017) [2024-11-27 20:08:50,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19386 states to 19386 states and 20919 transitions. [2024-11-27 20:08:50,574 INFO L78 Accepts]: Start accepts. Automaton has 19386 states and 20919 transitions. Word has length 433 [2024-11-27 20:08:50,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:50,575 INFO L471 AbstractCegarLoop]: Abstraction has 19386 states and 20919 transitions. [2024-11-27 20:08:50,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 18.076923076923077) internal successors, (235), 14 states have internal predecessors, (235), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-27 20:08:50,575 INFO L276 IsEmpty]: Start isEmpty. Operand 19386 states and 20919 transitions. [2024-11-27 20:08:50,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2024-11-27 20:08:50,580 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:50,580 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:50,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2024-11-27 20:08:50,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-27 20:08:50,780 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:08:50,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:50,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1932800984, now seen corresponding path program 3 times [2024-11-27 20:08:50,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:50,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328048376] [2024-11-27 20:08:50,781 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:08:50,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:50,895 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-27 20:08:50,896 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:08:52,485 INFO L134 CoverageAnalysis]: Checked inductivity of 3847 backedges. 51 proven. 3210 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2024-11-27 20:08:52,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:52,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328048376] [2024-11-27 20:08:52,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328048376] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:08:52,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532628229] [2024-11-27 20:08:52,486 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:08:52,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:52,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:52,489 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:08:52,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-11-27 20:08:52,729 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-27 20:08:52,729 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:08:52,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 20:08:52,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:53,945 INFO L134 CoverageAnalysis]: Checked inductivity of 3847 backedges. 0 proven. 3159 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-27 20:08:53,945 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:55,227 INFO L134 CoverageAnalysis]: Checked inductivity of 3847 backedges. 0 proven. 3159 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-27 20:08:55,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532628229] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:08:55,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:08:55,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 20, 20] total 62 [2024-11-27 20:08:55,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477050148] [2024-11-27 20:08:55,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:08:55,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-27 20:08:55,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:55,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-27 20:08:55,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1093, Invalid=2813, Unknown=0, NotChecked=0, Total=3906 [2024-11-27 20:08:55,231 INFO L87 Difference]: Start difference. First operand 19386 states and 20919 transitions. Second operand has 63 states, 62 states have (on average 16.483870967741936) internal successors, (1022), 63 states have internal predecessors, (1022), 58 states have call successors, (59), 1 states have call predecessors, (59), 2 states have return successors, (59), 57 states have call predecessors, (59), 58 states have call successors, (59) [2024-11-27 20:08:59,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:59,634 INFO L93 Difference]: Finished difference Result 27401 states and 30124 transitions. [2024-11-27 20:08:59,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-11-27 20:08:59,634 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 16.483870967741936) internal successors, (1022), 63 states have internal predecessors, (1022), 58 states have call successors, (59), 1 states have call predecessors, (59), 2 states have return successors, (59), 57 states have call predecessors, (59), 58 states have call successors, (59) Word has length 445 [2024-11-27 20:08:59,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:59,665 INFO L225 Difference]: With dead ends: 27401 [2024-11-27 20:08:59,665 INFO L226 Difference]: Without dead ends: 27400 [2024-11-27 20:08:59,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 952 GetRequests, 854 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2184 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=3276, Invalid=6624, Unknown=0, NotChecked=0, Total=9900 [2024-11-27 20:08:59,671 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 153 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:59,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 499 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 20:08:59,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27400 states. [2024-11-27 20:09:01,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27400 to 26986. [2024-11-27 20:09:01,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26986 states, 25563 states have (on average 1.0352853733912295) internal successors, (26465), 25566 states have internal predecessors, (26465), 1417 states have call successors, (1417), 2 states have call predecessors, (1417), 2 states have return successors, (1417), 1417 states have call predecessors, (1417), 1417 states have call successors, (1417) [2024-11-27 20:09:01,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26986 states to 26986 states and 29299 transitions. [2024-11-27 20:09:01,477 INFO L78 Accepts]: Start accepts. Automaton has 26986 states and 29299 transitions. Word has length 445 [2024-11-27 20:09:01,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:01,478 INFO L471 AbstractCegarLoop]: Abstraction has 26986 states and 29299 transitions. [2024-11-27 20:09:01,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 16.483870967741936) internal successors, (1022), 63 states have internal predecessors, (1022), 58 states have call successors, (59), 1 states have call predecessors, (59), 2 states have return successors, (59), 57 states have call predecessors, (59), 58 states have call successors, (59) [2024-11-27 20:09:01,478 INFO L276 IsEmpty]: Start isEmpty. Operand 26986 states and 29299 transitions. [2024-11-27 20:09:01,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2024-11-27 20:09:01,483 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:01,483 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:01,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2024-11-27 20:09:01,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:01,687 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:09:01,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:01,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1564061900, now seen corresponding path program 3 times [2024-11-27 20:09:01,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:01,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658416791] [2024-11-27 20:09:01,688 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:09:01,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:01,846 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-27 20:09:01,846 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:09:02,766 INFO L134 CoverageAnalysis]: Checked inductivity of 3901 backedges. 0 proven. 3213 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-27 20:09:02,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:02,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658416791] [2024-11-27 20:09:02,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658416791] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:02,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511596517] [2024-11-27 20:09:02,767 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:09:02,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:02,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:02,769 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:02,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-11-27 20:09:02,965 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-27 20:09:02,965 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:09:02,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 20:09:02,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:03,460 INFO L134 CoverageAnalysis]: Checked inductivity of 3901 backedges. 0 proven. 3213 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-27 20:09:03,460 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:09:04,722 INFO L134 CoverageAnalysis]: Checked inductivity of 3901 backedges. 0 proven. 3213 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-27 20:09:04,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511596517] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:09:04,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:09:04,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 40 [2024-11-27 20:09:04,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101488799] [2024-11-27 20:09:04,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:09:04,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-27 20:09:04,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:04,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-27 20:09:04,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2024-11-27 20:09:04,726 INFO L87 Difference]: Start difference. First operand 26986 states and 29299 transitions. Second operand has 41 states, 40 states have (on average 17.675) internal successors, (707), 41 states have internal predecessors, (707), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-27 20:09:17,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:17,041 INFO L93 Difference]: Finished difference Result 75813 states and 81851 transitions. [2024-11-27 20:09:17,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-27 20:09:17,042 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 17.675) internal successors, (707), 41 states have internal predecessors, (707), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) Word has length 448 [2024-11-27 20:09:17,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:17,143 INFO L225 Difference]: With dead ends: 75813 [2024-11-27 20:09:17,143 INFO L226 Difference]: Without dead ends: 75812 [2024-11-27 20:09:17,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 914 GetRequests, 875 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2024-11-27 20:09:17,154 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 826 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:17,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 746 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:09:17,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75812 states. [2024-11-27 20:09:20,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75812 to 53946. [2024-11-27 20:09:20,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53946 states, 51103 states have (on average 1.0372189499637987) internal successors, (53005), 51106 states have internal predecessors, (53005), 2837 states have call successors, (2837), 2 states have call predecessors, (2837), 2 states have return successors, (2837), 2837 states have call predecessors, (2837), 2837 states have call successors, (2837) [2024-11-27 20:09:20,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53946 states to 53946 states and 58679 transitions. [2024-11-27 20:09:20,796 INFO L78 Accepts]: Start accepts. Automaton has 53946 states and 58679 transitions. Word has length 448 [2024-11-27 20:09:20,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:20,796 INFO L471 AbstractCegarLoop]: Abstraction has 53946 states and 58679 transitions. [2024-11-27 20:09:20,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 17.675) internal successors, (707), 41 states have internal predecessors, (707), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-27 20:09:20,797 INFO L276 IsEmpty]: Start isEmpty. Operand 53946 states and 58679 transitions. [2024-11-27 20:09:20,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-27 20:09:20,802 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:20,802 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:20,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2024-11-27 20:09:21,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:21,003 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:09:21,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:21,003 INFO L85 PathProgramCache]: Analyzing trace with hash 520499637, now seen corresponding path program 31 times [2024-11-27 20:09:21,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:21,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559947388] [2024-11-27 20:09:21,004 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:09:21,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:21,404 INFO L134 CoverageAnalysis]: Checked inductivity of 3771 backedges. 1600 proven. 253 refuted. 0 times theorem prover too weak. 1918 trivial. 0 not checked. [2024-11-27 20:09:21,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:21,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559947388] [2024-11-27 20:09:21,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559947388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:21,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260569100] [2024-11-27 20:09:21,405 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:09:21,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:21,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:21,407 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:21,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-11-27 20:09:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:21,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:09:21,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:22,137 INFO L134 CoverageAnalysis]: Checked inductivity of 3771 backedges. 1936 proven. 253 refuted. 0 times theorem prover too weak. 1582 trivial. 0 not checked. [2024-11-27 20:09:22,137 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:09:22,539 INFO L134 CoverageAnalysis]: Checked inductivity of 3771 backedges. 1600 proven. 253 refuted. 0 times theorem prover too weak. 1918 trivial. 0 not checked. [2024-11-27 20:09:22,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260569100] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:09:22,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:09:22,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 16 [2024-11-27 20:09:22,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707662789] [2024-11-27 20:09:22,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:09:22,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:09:22,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:22,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:09:22,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:09:22,542 INFO L87 Difference]: Start difference. First operand 53946 states and 58679 transitions. Second operand has 16 states, 16 states have (on average 16.5625) internal successors, (265), 16 states have internal predecessors, (265), 15 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-27 20:09:26,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:26,960 INFO L93 Difference]: Finished difference Result 74399 states and 80684 transitions. [2024-11-27 20:09:26,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:09:26,961 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 16.5625) internal successors, (265), 16 states have internal predecessors, (265), 15 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) Word has length 456 [2024-11-27 20:09:26,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:27,040 INFO L225 Difference]: With dead ends: 74399 [2024-11-27 20:09:27,040 INFO L226 Difference]: Without dead ends: 56178 [2024-11-27 20:09:27,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 923 GetRequests, 899 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:09:27,064 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 37 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:27,064 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 336 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:09:27,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56178 states. [2024-11-27 20:09:30,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56178 to 52356. [2024-11-27 20:09:30,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52356 states, 49593 states have (on average 1.0374044724053797) internal successors, (51448), 49596 states have internal predecessors, (51448), 2757 states have call successors, (2757), 2 states have call predecessors, (2757), 2 states have return successors, (2757), 2757 states have call predecessors, (2757), 2757 states have call successors, (2757) [2024-11-27 20:09:30,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52356 states to 52356 states and 56962 transitions. [2024-11-27 20:09:30,381 INFO L78 Accepts]: Start accepts. Automaton has 52356 states and 56962 transitions. Word has length 456 [2024-11-27 20:09:30,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:30,381 INFO L471 AbstractCegarLoop]: Abstraction has 52356 states and 56962 transitions. [2024-11-27 20:09:30,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.5625) internal successors, (265), 16 states have internal predecessors, (265), 15 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-27 20:09:30,381 INFO L276 IsEmpty]: Start isEmpty. Operand 52356 states and 56962 transitions. [2024-11-27 20:09:30,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-11-27 20:09:30,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:30,389 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:30,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2024-11-27 20:09:30,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2024-11-27 20:09:30,590 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:09:30,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:30,590 INFO L85 PathProgramCache]: Analyzing trace with hash -127900080, now seen corresponding path program 32 times [2024-11-27 20:09:30,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:30,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240082081] [2024-11-27 20:09:30,591 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:09:30,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:30,624 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:09:30,624 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:09:33,167 INFO L134 CoverageAnalysis]: Checked inductivity of 4350 backedges. 3566 proven. 20 refuted. 0 times theorem prover too weak. 764 trivial. 0 not checked. [2024-11-27 20:09:33,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:33,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240082081] [2024-11-27 20:09:33,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240082081] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:33,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499018631] [2024-11-27 20:09:33,168 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:09:33,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:33,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:33,171 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:33,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-11-27 20:09:33,355 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:09:33,355 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:09:33,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-27 20:09:33,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:34,561 INFO L134 CoverageAnalysis]: Checked inductivity of 4350 backedges. 4326 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:09:34,561 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:09:36,393 INFO L134 CoverageAnalysis]: Checked inductivity of 4350 backedges. 3566 proven. 20 refuted. 0 times theorem prover too weak. 764 trivial. 0 not checked. [2024-11-27 20:09:36,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499018631] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:09:36,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:09:36,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 43, 44] total 45 [2024-11-27 20:09:36,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120509760] [2024-11-27 20:09:36,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:09:36,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-27 20:09:36,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:36,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-27 20:09:36,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=548, Invalid=1432, Unknown=0, NotChecked=0, Total=1980 [2024-11-27 20:09:36,398 INFO L87 Difference]: Start difference. First operand 52356 states and 56962 transitions. Second operand has 45 states, 45 states have (on average 9.777777777777779) internal successors, (440), 45 states have internal predecessors, (440), 21 states have call successors, (44), 22 states have call predecessors, (44), 22 states have return successors, (44), 21 states have call predecessors, (44), 21 states have call successors, (44) [2024-11-27 20:09:39,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:39,209 INFO L93 Difference]: Finished difference Result 54746 states and 59451 transitions. [2024-11-27 20:09:39,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-11-27 20:09:39,210 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 9.777777777777779) internal successors, (440), 45 states have internal predecessors, (440), 21 states have call successors, (44), 22 states have call predecessors, (44), 22 states have return successors, (44), 21 states have call predecessors, (44), 21 states have call successors, (44) Word has length 479 [2024-11-27 20:09:39,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:39,223 INFO L225 Difference]: With dead ends: 54746 [2024-11-27 20:09:39,223 INFO L226 Difference]: Without dead ends: 1412 [2024-11-27 20:09:39,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1042 GetRequests, 917 SyntacticMatches, 41 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2482 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2393, Invalid=4917, Unknown=0, NotChecked=0, Total=7310 [2024-11-27 20:09:39,258 INFO L435 NwaCegarLoop]: 492 mSDtfsCounter, 176 mSDsluCounter, 2754 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 3246 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:39,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 3246 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:09:39,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2024-11-27 20:09:39,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1153. [2024-11-27 20:09:39,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1074 states have (on average 1.0027932960893855) internal successors, (1077), 1074 states have internal predecessors, (1077), 57 states have call successors, (57), 21 states have call predecessors, (57), 21 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-27 20:09:39,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1191 transitions. [2024-11-27 20:09:39,443 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1191 transitions. Word has length 479 [2024-11-27 20:09:39,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:39,444 INFO L471 AbstractCegarLoop]: Abstraction has 1153 states and 1191 transitions. [2024-11-27 20:09:39,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 9.777777777777779) internal successors, (440), 45 states have internal predecessors, (440), 21 states have call successors, (44), 22 states have call predecessors, (44), 22 states have return successors, (44), 21 states have call predecessors, (44), 21 states have call successors, (44) [2024-11-27 20:09:39,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1191 transitions. [2024-11-27 20:09:39,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-11-27 20:09:39,449 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:39,449 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:39,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2024-11-27 20:09:39,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2024-11-27 20:09:39,650 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:09:39,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:39,650 INFO L85 PathProgramCache]: Analyzing trace with hash -127896654, now seen corresponding path program 1 times [2024-11-27 20:09:39,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:39,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292222385] [2024-11-27 20:09:39,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:39,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:09:39,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1967640436] [2024-11-27 20:09:39,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:39,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:39,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:39,706 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:39,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-11-27 20:09:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:39,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 118 conjuncts are in the unsatisfiable core [2024-11-27 20:09:39,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:43,304 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-27 20:09:44,216 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-27 20:09:45,234 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-27 20:09:46,379 WARN L672 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2024-11-27 20:09:47,925 WARN L672 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2024-11-27 20:09:49,471 WARN L672 sPolynomialRelations]: Constructing 2048(two to the power of 11 dual juncts. [2024-11-27 20:09:51,227 WARN L672 sPolynomialRelations]: Constructing 4096(two to the power of 12 dual juncts. [2024-11-27 20:09:53,095 WARN L672 sPolynomialRelations]: Constructing 8192(two to the power of 13 dual juncts. [2024-11-27 20:09:55,346 WARN L672 sPolynomialRelations]: Constructing 16384(two to the power of 14 dual juncts. [2024-11-27 20:09:57,896 WARN L672 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2024-11-27 20:10:01,207 WARN L672 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2024-11-27 20:10:05,802 WARN L672 sPolynomialRelations]: Constructing 131072(two to the power of 17 dual juncts. [2024-11-27 20:10:13,426 WARN L672 sPolynomialRelations]: Constructing 262144(two to the power of 18 dual juncts. [2024-11-27 20:10:27,201 WARN L672 sPolynomialRelations]: Constructing 524288(two to the power of 19 dual juncts. [2024-11-27 20:10:51,896 WARN L672 sPolynomialRelations]: Constructing 1048576(two to the power of 20 dual juncts. [2024-11-27 20:11:46,030 INFO L134 CoverageAnalysis]: Checked inductivity of 4310 backedges. 57 proven. 3549 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2024-11-27 20:11:46,031 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:11:47,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:11:47,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292222385] [2024-11-27 20:11:47,175 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:11:47,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967640436] [2024-11-27 20:11:47,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967640436] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:11:47,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:11:47,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70] total 70 [2024-11-27 20:11:47,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849992322] [2024-11-27 20:11:47,176 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:11:47,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2024-11-27 20:11:47,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:11:47,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2024-11-27 20:11:47,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=398, Invalid=5302, Unknown=0, NotChecked=0, Total=5700 [2024-11-27 20:11:47,178 INFO L87 Difference]: Start difference. First operand 1153 states and 1191 transitions. Second operand has 71 states, 69 states have (on average 5.521739130434782) internal successors, (381), 69 states have internal predecessors, (381), 22 states have call successors, (22), 1 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 20:12:04,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:04,835 INFO L93 Difference]: Finished difference Result 1311 states and 1355 transitions. [2024-11-27 20:12:04,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-27 20:12:04,836 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 69 states have (on average 5.521739130434782) internal successors, (381), 69 states have internal predecessors, (381), 22 states have call successors, (22), 1 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) Word has length 479 [2024-11-27 20:12:04,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:04,843 INFO L225 Difference]: With dead ends: 1311 [2024-11-27 20:12:04,843 INFO L226 Difference]: Without dead ends: 1016 [2024-11-27 20:12:04,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2404 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=835, Invalid=10507, Unknown=0, NotChecked=0, Total=11342 [2024-11-27 20:12:04,845 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 236 mSDsluCounter, 5252 mSDsCounter, 0 mSdLazyCounter, 15692 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 5390 SdHoareTripleChecker+Invalid, 15714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 15692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:04,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 5390 Invalid, 15714 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 15692 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2024-11-27 20:12:04,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2024-11-27 20:12:04,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1016. [2024-11-27 20:12:04,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 944 states have (on average 1.0021186440677967) internal successors, (946), 944 states have internal predecessors, (946), 50 states have call successors, (50), 21 states have call predecessors, (50), 21 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-27 20:12:04,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1046 transitions. [2024-11-27 20:12:04,981 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1046 transitions. Word has length 479 [2024-11-27 20:12:04,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:04,981 INFO L471 AbstractCegarLoop]: Abstraction has 1016 states and 1046 transitions. [2024-11-27 20:12:04,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 69 states have (on average 5.521739130434782) internal successors, (381), 69 states have internal predecessors, (381), 22 states have call successors, (22), 1 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 20:12:04,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1046 transitions. [2024-11-27 20:12:04,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-11-27 20:12:04,984 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:04,984 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 17, 17, 17, 17, 17, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:12:04,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2024-11-27 20:12:05,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2024-11-27 20:12:05,185 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:12:05,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:05,185 INFO L85 PathProgramCache]: Analyzing trace with hash 529750908, now seen corresponding path program 2 times [2024-11-27 20:12:05,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:05,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601466348] [2024-11-27 20:12:05,186 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:12:05,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:05,214 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:12:05,214 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:12:05,801 INFO L134 CoverageAnalysis]: Checked inductivity of 4250 backedges. 2064 proven. 1015 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2024-11-27 20:12:05,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:05,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601466348] [2024-11-27 20:12:05,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601466348] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:12:05,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047018216] [2024-11-27 20:12:05,801 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:12:05,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:12:05,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:05,803 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:12:05,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-11-27 20:12:05,961 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:12:05,961 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:12:05,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:12:05,967 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:12:06,765 INFO L134 CoverageAnalysis]: Checked inductivity of 4250 backedges. 2428 proven. 1015 refuted. 0 times theorem prover too weak. 807 trivial. 0 not checked. [2024-11-27 20:12:06,765 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:12:07,406 INFO L134 CoverageAnalysis]: Checked inductivity of 4250 backedges. 2064 proven. 1015 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2024-11-27 20:12:07,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047018216] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:12:07,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:12:07,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 25 [2024-11-27 20:12:07,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122837128] [2024-11-27 20:12:07,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:12:07,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-27 20:12:07,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:07,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-27 20:12:07,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2024-11-27 20:12:07,409 INFO L87 Difference]: Start difference. First operand 1016 states and 1046 transitions. Second operand has 25 states, 25 states have (on average 17.16) internal successors, (429), 25 states have internal predecessors, (429), 24 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26) [2024-11-27 20:12:08,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:08,007 INFO L93 Difference]: Finished difference Result 1161 states and 1189 transitions. [2024-11-27 20:12:08,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 20:12:08,008 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 17.16) internal successors, (429), 25 states have internal predecessors, (429), 24 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26) Word has length 479 [2024-11-27 20:12:08,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:08,015 INFO L225 Difference]: With dead ends: 1161 [2024-11-27 20:12:08,015 INFO L226 Difference]: Without dead ends: 818 [2024-11-27 20:12:08,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 978 GetRequests, 936 SyntacticMatches, 13 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2024-11-27 20:12:08,016 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 12 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:08,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 487 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:12:08,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2024-11-27 20:12:08,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 784. [2024-11-27 20:12:08,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 724 states have (on average 1.0013812154696133) internal successors, (725), 724 states have internal predecessors, (725), 38 states have call successors, (38), 21 states have call predecessors, (38), 21 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-27 20:12:08,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 801 transitions. [2024-11-27 20:12:08,140 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 801 transitions. Word has length 479 [2024-11-27 20:12:08,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:08,140 INFO L471 AbstractCegarLoop]: Abstraction has 784 states and 801 transitions. [2024-11-27 20:12:08,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 17.16) internal successors, (429), 25 states have internal predecessors, (429), 24 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26) [2024-11-27 20:12:08,141 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 801 transitions. [2024-11-27 20:12:08,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-11-27 20:12:08,143 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:08,143 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 15, 15, 15, 15, 15, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:12:08,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2024-11-27 20:12:08,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:12:08,343 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:12:08,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:08,344 INFO L85 PathProgramCache]: Analyzing trace with hash 2140741652, now seen corresponding path program 3 times [2024-11-27 20:12:08,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:08,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36392858] [2024-11-27 20:12:08,344 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:12:08,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:08,411 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2024-11-27 20:12:08,411 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:12:08,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [31940594] [2024-11-27 20:12:08,414 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:12:08,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:12:08,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:08,416 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:12:08,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c10c3c7c-4c48-4542-8414-81893856c461/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-11-27 20:12:08,656 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2024-11-27 20:12:08,656 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:12:08,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-11-27 20:12:08,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:12:13,425 INFO L134 CoverageAnalysis]: Checked inductivity of 4154 backedges. 138 proven. 3252 refuted. 0 times theorem prover too weak. 764 trivial. 0 not checked. [2024-11-27 20:12:13,425 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:12:14,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:14,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36392858] [2024-11-27 20:12:14,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:12:14,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31940594] [2024-11-27 20:12:14,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31940594] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:12:14,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:12:14,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2024-11-27 20:12:14,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032470910] [2024-11-27 20:12:14,046 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:12:14,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-27 20:12:14,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:14,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-27 20:12:14,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1616, Unknown=0, NotChecked=0, Total=1806 [2024-11-27 20:12:14,048 INFO L87 Difference]: Start difference. First operand 784 states and 801 transitions. Second operand has 39 states, 38 states have (on average 7.447368421052632) internal successors, (283), 39 states have internal predecessors, (283), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 16 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-27 20:12:19,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:12:23,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:12:27,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:12:31,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:12:35,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:12:39,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:12:43,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:12:48,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:12:52,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:12:57,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:13:09,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:13:13,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:13:17,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:13:21,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:13:25,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:13:29,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:13:33,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:13:37,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:13:41,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:13:46,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:13:54,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:02,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:06,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:10,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:14,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:18,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:22,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:26,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:30,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:34,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:38,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:47,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:14:51,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:03,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:07,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:11,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:15,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:19,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:23,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:27,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:31,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:35,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:39,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:43,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:47,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:51,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:55,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:15:59,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:03,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:07,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:11,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:15,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:19,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:23,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:27,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:32,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:33,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:34,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:38,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:43,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:47,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:51,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:16:59,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:17:03,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:17:08,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:17:12,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:17:17,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:17:21,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:17:25,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:17:27,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:17:31,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]