./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound20.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_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/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_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/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_219e0982-412d-459b-80ff-e70d74b45b68/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 014459ae7f9a4506b7655fe1f167856eb64829e3739070f7d1f854e4ecd5b5bc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:41:19,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:41:19,180 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 02:41:19,185 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:41:19,185 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:41:19,225 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:41:19,225 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:41:19,226 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:41:19,226 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:41:19,226 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:41:19,226 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:41:19,226 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:41:19,229 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:41:19,229 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:41:19,230 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:41:19,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:41:19,230 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:41:19,230 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:41:19,230 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:41:19,230 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:41:19,231 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:41:19,231 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:41:19,231 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:41:19,231 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:41:19,231 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 02:41:19,231 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:41:19,231 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:41:19,231 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:41:19,231 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:41:19,231 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:41:19,231 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:41:19,232 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:41:19,232 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:41:19,232 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:41:19,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:41:19,232 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:41:19,232 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:41:19,232 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:41:19,232 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:41:19,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:41:19,233 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:41:19,233 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:41:19,233 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:41:19,233 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:41:19,234 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:41:19,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:41:19,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:41:19,234 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:41:19,234 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:41:19,234 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:41:19,234 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_219e0982-412d-459b-80ff-e70d74b45b68/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 -> 014459ae7f9a4506b7655fe1f167856eb64829e3739070f7d1f854e4ecd5b5bc [2024-11-28 02:41:19,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:41:19,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:41:19,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:41:19,554 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:41:19,554 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:41:19,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound20.c [2024-11-28 02:41:22,559 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/data/5d6266436/03f719d04dac4b9c887054a153f1357e/FLAGf9cd1089f [2024-11-28 02:41:22,814 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:41:22,816 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound20.c [2024-11-28 02:41:22,828 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/data/5d6266436/03f719d04dac4b9c887054a153f1357e/FLAGf9cd1089f [2024-11-28 02:41:22,850 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/data/5d6266436/03f719d04dac4b9c887054a153f1357e [2024-11-28 02:41:22,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:41:22,854 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:41:22,856 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:41:22,856 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:41:22,863 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:41:22,864 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:41:22" (1/1) ... [2024-11-28 02:41:22,865 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72736a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:22, skipping insertion in model container [2024-11-28 02:41:22,865 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:41:22" (1/1) ... [2024-11-28 02:41:22,884 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:41:23,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:41:23,078 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:41:23,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:41:23,120 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:41:23,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23 WrapperNode [2024-11-28 02:41:23,121 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:41:23,122 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:41:23,122 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:41:23,122 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:41:23,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,143 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,173 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 91 [2024-11-28 02:41:23,173 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:41:23,176 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:41:23,176 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:41:23,176 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:41:23,186 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,187 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,196 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]. [2024-11-28 02:41:23,197 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,197 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,200 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,200 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,204 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,205 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,205 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,207 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:41:23,207 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:41:23,207 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:41:23,207 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:41:23,208 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (1/1) ... [2024-11-28 02:41:23,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:41:23,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:23,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:41:23,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:41:23,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:41:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:41:23,271 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:41:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:41:23,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:41:23,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:41:23,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:41:23,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:41:23,335 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:41:23,337 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:41:23,817 INFO L? ?]: Removed 63 outVars from TransFormulas that were not future-live. [2024-11-28 02:41:23,818 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:41:23,834 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:41:23,836 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 02:41:23,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:41:23 BoogieIcfgContainer [2024-11-28 02:41:23,837 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:41:23,841 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:41:23,841 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:41:23,848 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:41:23,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:41:22" (1/3) ... [2024-11-28 02:41:23,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c083351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:41:23, skipping insertion in model container [2024-11-28 02:41:23,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:23" (2/3) ... [2024-11-28 02:41:23,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c083351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:41:23, skipping insertion in model container [2024-11-28 02:41:23,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:41:23" (3/3) ... [2024-11-28 02:41:23,851 INFO L128 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound20.c [2024-11-28 02:41:23,871 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:41:23,873 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG cohendiv-ll_valuebound20.c that has 3 procedures, 90 locations, 1 initial locations, 2 loop locations, and 30 error locations. [2024-11-28 02:41:23,946 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:41:23,963 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;@657b31f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:41:23,964 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-11-28 02:41:23,967 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 47 states have (on average 1.8085106382978724) internal successors, (85), 77 states have internal predecessors, (85), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:41:23,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-28 02:41:23,975 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:23,975 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:23,976 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:23,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:23,983 INFO L85 PathProgramCache]: Analyzing trace with hash -23182720, now seen corresponding path program 1 times [2024-11-28 02:41:23,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:23,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129646828] [2024-11-28 02:41:23,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:23,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:24,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:24,108 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 02:41:24,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:24,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129646828] [2024-11-28 02:41:24,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129646828] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:24,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127496366] [2024-11-28 02:41:24,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:24,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:24,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:24,113 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:24,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:41:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:24,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:41:24,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:24,217 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 02:41:24,217 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:41:24,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127496366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:24,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:41:24,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:41:24,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869935083] [2024-11-28 02:41:24,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:24,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:41:24,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:24,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:41:24,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:41:24,242 INFO L87 Difference]: Start difference. First operand has 90 states, 47 states have (on average 1.8085106382978724) internal successors, (85), 77 states have internal predecessors, (85), 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) 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:41:24,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:24,264 INFO L93 Difference]: Finished difference Result 176 states and 215 transitions. [2024-11-28 02:41:24,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:41:24,266 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2024-11-28 02:41:24,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:24,272 INFO L225 Difference]: With dead ends: 176 [2024-11-28 02:41:24,273 INFO L226 Difference]: Without dead ends: 83 [2024-11-28 02:41:24,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:41:24,279 INFO L435 NwaCegarLoop]: 98 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, 98 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 [2024-11-28 02:41:24,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:41:24,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-28 02:41:24,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-28 02:41:24,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 42 states have (on average 1.7380952380952381) internal successors, (73), 71 states have internal predecessors, (73), 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) [2024-11-28 02:41:24,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 91 transitions. [2024-11-28 02:41:24,330 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 91 transitions. Word has length 20 [2024-11-28 02:41:24,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:24,331 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 91 transitions. [2024-11-28 02:41:24,332 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 02:41:24,332 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 91 transitions. [2024-11-28 02:41:24,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-28 02:41:24,335 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:24,336 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:24,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:41:24,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:24,540 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:24,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:24,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1435431042, now seen corresponding path program 1 times [2024-11-28 02:41:24,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:24,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290428552] [2024-11-28 02:41:24,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:24,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:41:24,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1477588986] [2024-11-28 02:41:24,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:24,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:24,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:24,574 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:24,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:41:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:24,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:41:24,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:24,675 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:41:24,675 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:41:24,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:24,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290428552] [2024-11-28 02:41:24,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:41:24,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477588986] [2024-11-28 02:41:24,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477588986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:24,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:24,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:41:24,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926015840] [2024-11-28 02:41:24,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:24,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:41:24,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:24,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:41:24,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:41:24,680 INFO L87 Difference]: Start difference. First operand 83 states and 91 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:41:24,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:24,807 INFO L93 Difference]: Finished difference Result 106 states and 116 transitions. [2024-11-28 02:41:24,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:41:24,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2024-11-28 02:41:24,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:24,809 INFO L225 Difference]: With dead ends: 106 [2024-11-28 02:41:24,809 INFO L226 Difference]: Without dead ends: 104 [2024-11-28 02:41:24,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:41:24,810 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 18 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:24,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 157 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:41:24,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-28 02:41:24,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 85. [2024-11-28 02:41:24,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 73 states have internal predecessors, (75), 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) [2024-11-28 02:41:24,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2024-11-28 02:41:24,823 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 20 [2024-11-28 02:41:24,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:24,824 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 93 transitions. [2024-11-28 02:41:24,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:41:24,824 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2024-11-28 02:41:24,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-28 02:41:24,828 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:24,828 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:24,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:41:25,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:25,030 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:25,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:25,031 INFO L85 PathProgramCache]: Analyzing trace with hash 2087500751, now seen corresponding path program 1 times [2024-11-28 02:41:25,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:25,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099907196] [2024-11-28 02:41:25,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:25,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:41:25,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2137814572] [2024-11-28 02:41:25,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:25,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:25,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:25,065 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:25,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:41:25,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:25,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:41:25,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:25,157 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:41:25,157 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:41:25,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:25,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099907196] [2024-11-28 02:41:25,157 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:41:25,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137814572] [2024-11-28 02:41:25,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137814572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:25,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:25,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:41:25,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812148322] [2024-11-28 02:41:25,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:25,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:41:25,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:25,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:41:25,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:41:25,159 INFO L87 Difference]: Start difference. First operand 85 states and 93 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-11-28 02:41:25,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:25,345 INFO L93 Difference]: Finished difference Result 141 states and 164 transitions. [2024-11-28 02:41:25,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:41:25,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 27 [2024-11-28 02:41:25,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:25,348 INFO L225 Difference]: With dead ends: 141 [2024-11-28 02:41:25,348 INFO L226 Difference]: Without dead ends: 135 [2024-11-28 02:41:25,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:41:25,349 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 44 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:25,350 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 132 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:41:25,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-28 02:41:25,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 115. [2024-11-28 02:41:25,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 68 states have (on average 1.7205882352941178) internal successors, (117), 97 states have internal predecessors, (117), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:41:25,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 147 transitions. [2024-11-28 02:41:25,364 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 147 transitions. Word has length 27 [2024-11-28 02:41:25,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:25,364 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 147 transitions. [2024-11-28 02:41:25,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-11-28 02:41:25,365 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 147 transitions. [2024-11-28 02:41:25,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-28 02:41:25,365 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:25,365 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:25,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:41:25,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:25,566 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:25,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:25,566 INFO L85 PathProgramCache]: Analyzing trace with hash 338496209, now seen corresponding path program 1 times [2024-11-28 02:41:25,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:25,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091409957] [2024-11-28 02:41:25,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:25,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:25,830 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 02:41:25,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:25,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091409957] [2024-11-28 02:41:25,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091409957] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:25,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313651928] [2024-11-28 02:41:25,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:25,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:25,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:25,834 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:25,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:41:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:25,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:41:25,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:26,028 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:41:26,028 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:41:26,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313651928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:26,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:41:26,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 02:41:26,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415496223] [2024-11-28 02:41:26,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:26,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:41:26,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:26,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:41:26,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:41:26,029 INFO L87 Difference]: Start difference. First operand 115 states and 147 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-28 02:41:26,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:26,181 INFO L93 Difference]: Finished difference Result 134 states and 154 transitions. [2024-11-28 02:41:26,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:41:26,182 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), 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 29 [2024-11-28 02:41:26,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:26,183 INFO L225 Difference]: With dead ends: 134 [2024-11-28 02:41:26,183 INFO L226 Difference]: Without dead ends: 131 [2024-11-28 02:41:26,183 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:41:26,185 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 150 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:26,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 138 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:41:26,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-28 02:41:26,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 116. [2024-11-28 02:41:26,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 69 states have (on average 1.681159420289855) internal successors, (116), 98 states have internal predecessors, (116), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:41:26,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 146 transitions. [2024-11-28 02:41:26,197 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 146 transitions. Word has length 29 [2024-11-28 02:41:26,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:26,198 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 146 transitions. [2024-11-28 02:41:26,198 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), 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) [2024-11-28 02:41:26,198 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 146 transitions. [2024-11-28 02:41:26,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-28 02:41:26,199 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:26,199 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:26,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:41:26,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:26,403 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:26,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:26,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1903447945, now seen corresponding path program 1 times [2024-11-28 02:41:26,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:26,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456471662] [2024-11-28 02:41:26,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:26,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:41:26,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [705390234] [2024-11-28 02:41:26,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:26,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:26,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:26,427 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:26,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:41:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:26,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:41:26,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:26,611 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:41:26,612 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:41:26,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:26,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456471662] [2024-11-28 02:41:26,613 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:41:26,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705390234] [2024-11-28 02:41:26,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705390234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:26,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:26,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:41:26,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948980008] [2024-11-28 02:41:26,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:26,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:41:26,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:26,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:41:26,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:41:26,615 INFO L87 Difference]: Start difference. First operand 116 states and 146 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-28 02:41:26,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:26,808 INFO L93 Difference]: Finished difference Result 134 states and 151 transitions. [2024-11-28 02:41:26,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:41:26,809 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), 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 30 [2024-11-28 02:41:26,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:26,811 INFO L225 Difference]: With dead ends: 134 [2024-11-28 02:41:26,811 INFO L226 Difference]: Without dead ends: 127 [2024-11-28 02:41:26,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:41:26,812 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 146 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:26,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 141 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:41:26,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-28 02:41:26,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 113. [2024-11-28 02:41:26,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 66 states have (on average 1.6666666666666667) internal successors, (110), 95 states have internal predecessors, (110), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:41:26,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 140 transitions. [2024-11-28 02:41:26,834 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 140 transitions. Word has length 30 [2024-11-28 02:41:26,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:26,837 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 140 transitions. [2024-11-28 02:41:26,838 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), 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) [2024-11-28 02:41:26,838 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 140 transitions. [2024-11-28 02:41:26,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-28 02:41:26,839 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:26,839 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:26,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 02:41:27,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:27,040 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:27,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:27,040 INFO L85 PathProgramCache]: Analyzing trace with hash -878523907, now seen corresponding path program 1 times [2024-11-28 02:41:27,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:27,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844058132] [2024-11-28 02:41:27,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:27,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:41:27,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1558605680] [2024-11-28 02:41:27,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:27,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:27,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:27,073 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:27,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:41:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:27,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:41:27,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:27,185 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 02:41:27,185 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:41:27,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:27,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844058132] [2024-11-28 02:41:27,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:41:27,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558605680] [2024-11-28 02:41:27,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558605680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:27,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:27,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:41:27,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650306259] [2024-11-28 02:41:27,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:27,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:41:27,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:27,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:41:27,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:41:27,187 INFO L87 Difference]: Start difference. First operand 113 states and 140 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:41:27,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:27,420 INFO L93 Difference]: Finished difference Result 177 states and 245 transitions. [2024-11-28 02:41:27,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:41:27,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2024-11-28 02:41:27,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:27,422 INFO L225 Difference]: With dead ends: 177 [2024-11-28 02:41:27,422 INFO L226 Difference]: Without dead ends: 172 [2024-11-28 02:41:27,423 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:41:27,423 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 72 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:27,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 100 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:41:27,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-28 02:41:27,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 156. [2024-11-28 02:41:27,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 101 states have (on average 1.6534653465346534) internal successors, (167), 130 states have internal predecessors, (167), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 02:41:27,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 213 transitions. [2024-11-28 02:41:27,452 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 213 transitions. Word has length 37 [2024-11-28 02:41:27,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:27,453 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 213 transitions. [2024-11-28 02:41:27,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:41:27,453 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 213 transitions. [2024-11-28 02:41:27,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 02:41:27,454 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:27,454 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:27,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 02:41:27,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:27,658 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:27,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:27,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1464437265, now seen corresponding path program 1 times [2024-11-28 02:41:27,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:27,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079227907] [2024-11-28 02:41:27,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:27,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:41:27,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [927074263] [2024-11-28 02:41:27,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:27,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:27,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:27,683 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:27,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:41:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:27,748 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:41:27,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:27,810 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 02:41:27,811 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:41:27,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:27,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079227907] [2024-11-28 02:41:27,812 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:41:27,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927074263] [2024-11-28 02:41:27,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927074263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:27,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:27,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:41:27,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847834510] [2024-11-28 02:41:27,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:27,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:41:27,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:27,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:41:27,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:41:27,817 INFO L87 Difference]: Start difference. First operand 156 states and 213 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:41:28,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:28,026 INFO L93 Difference]: Finished difference Result 175 states and 236 transitions. [2024-11-28 02:41:28,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:41:28,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 38 [2024-11-28 02:41:28,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:28,028 INFO L225 Difference]: With dead ends: 175 [2024-11-28 02:41:28,028 INFO L226 Difference]: Without dead ends: 172 [2024-11-28 02:41:28,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:41:28,029 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 97 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:28,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 81 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:41:28,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-28 02:41:28,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 157. [2024-11-28 02:41:28,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 102 states have (on average 1.607843137254902) internal successors, (164), 131 states have internal predecessors, (164), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 02:41:28,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 210 transitions. [2024-11-28 02:41:28,059 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 210 transitions. Word has length 38 [2024-11-28 02:41:28,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:28,060 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 210 transitions. [2024-11-28 02:41:28,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:41:28,061 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 210 transitions. [2024-11-28 02:41:28,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 02:41:28,062 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:28,062 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:28,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 02:41:28,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-28 02:41:28,263 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:28,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:28,266 INFO L85 PathProgramCache]: Analyzing trace with hash 208254432, now seen corresponding path program 1 times [2024-11-28 02:41:28,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:28,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179405004] [2024-11-28 02:41:28,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:28,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:28,420 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-28 02:41:28,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:28,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179405004] [2024-11-28 02:41:28,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179405004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:28,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:28,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:41:28,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831437241] [2024-11-28 02:41:28,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:28,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:41:28,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:28,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:41:28,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:41:28,421 INFO L87 Difference]: Start difference. First operand 157 states and 210 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:41:28,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:28,677 INFO L93 Difference]: Finished difference Result 190 states and 239 transitions. [2024-11-28 02:41:28,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:41:28,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 58 [2024-11-28 02:41:28,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:28,680 INFO L225 Difference]: With dead ends: 190 [2024-11-28 02:41:28,680 INFO L226 Difference]: Without dead ends: 188 [2024-11-28 02:41:28,680 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 [2024-11-28 02:41:28,681 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 111 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:28,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 89 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:41:28,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-28 02:41:28,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 159. [2024-11-28 02:41:28,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 104 states have (on average 1.5769230769230769) internal successors, (164), 133 states have internal predecessors, (164), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 02:41:28,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 210 transitions. [2024-11-28 02:41:28,708 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 210 transitions. Word has length 58 [2024-11-28 02:41:28,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:28,709 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 210 transitions. [2024-11-28 02:41:28,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:41:28,710 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 210 transitions. [2024-11-28 02:41:28,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-28 02:41:28,711 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:28,711 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:28,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:41:28,712 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:28,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:28,713 INFO L85 PathProgramCache]: Analyzing trace with hash -2134047109, now seen corresponding path program 1 times [2024-11-28 02:41:28,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:28,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871991536] [2024-11-28 02:41:28,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:28,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:28,840 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-28 02:41:28,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:28,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871991536] [2024-11-28 02:41:28,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871991536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:28,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:28,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:41:28,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507520314] [2024-11-28 02:41:28,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:28,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:41:28,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:28,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:41:28,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:41:28,842 INFO L87 Difference]: Start difference. First operand 159 states and 210 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:41:29,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:29,060 INFO L93 Difference]: Finished difference Result 190 states and 235 transitions. [2024-11-28 02:41:29,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:41:29,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 59 [2024-11-28 02:41:29,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:29,064 INFO L225 Difference]: With dead ends: 190 [2024-11-28 02:41:29,064 INFO L226 Difference]: Without dead ends: 188 [2024-11-28 02:41:29,065 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 [2024-11-28 02:41:29,066 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 108 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:29,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 91 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:41:29,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-28 02:41:29,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 161. [2024-11-28 02:41:29,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 106 states have (on average 1.5471698113207548) internal successors, (164), 135 states have internal predecessors, (164), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 02:41:29,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 210 transitions. [2024-11-28 02:41:29,095 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 210 transitions. Word has length 59 [2024-11-28 02:41:29,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:29,096 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 210 transitions. [2024-11-28 02:41:29,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:41:29,096 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 210 transitions. [2024-11-28 02:41:29,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-28 02:41:29,099 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:29,099 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:29,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:41:29,100 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:29,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:29,100 INFO L85 PathProgramCache]: Analyzing trace with hash -2119868525, now seen corresponding path program 1 times [2024-11-28 02:41:29,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:29,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256231755] [2024-11-28 02:41:29,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:29,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:29,224 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-28 02:41:29,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:29,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256231755] [2024-11-28 02:41:29,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256231755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:29,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:29,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:41:29,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333377483] [2024-11-28 02:41:29,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:29,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:41:29,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:29,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:41:29,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:41:29,226 INFO L87 Difference]: Start difference. First operand 161 states and 210 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:41:29,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:29,307 INFO L93 Difference]: Finished difference Result 166 states and 210 transitions. [2024-11-28 02:41:29,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:41:29,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2024-11-28 02:41:29,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:29,309 INFO L225 Difference]: With dead ends: 166 [2024-11-28 02:41:29,309 INFO L226 Difference]: Without dead ends: 165 [2024-11-28 02:41:29,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:41:29,310 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 13 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:29,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 140 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:41:29,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-28 02:41:29,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 161. [2024-11-28 02:41:29,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 106 states have (on average 1.5377358490566038) internal successors, (163), 135 states have internal predecessors, (163), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 02:41:29,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 209 transitions. [2024-11-28 02:41:29,330 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 209 transitions. Word has length 61 [2024-11-28 02:41:29,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:29,330 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 209 transitions. [2024-11-28 02:41:29,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:41:29,330 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 209 transitions. [2024-11-28 02:41:29,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-28 02:41:29,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:29,331 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:29,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:41:29,332 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:29,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:29,332 INFO L85 PathProgramCache]: Analyzing trace with hash -2119868483, now seen corresponding path program 1 times [2024-11-28 02:41:29,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:29,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107518091] [2024-11-28 02:41:29,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:29,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:29,452 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 02:41:29,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:29,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107518091] [2024-11-28 02:41:29,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107518091] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:29,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208215249] [2024-11-28 02:41:29,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:29,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:29,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:29,455 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:29,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 02:41:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:29,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:41:29,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:29,652 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 02:41:29,652 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:41:29,787 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-28 02:41:29,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208215249] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:41:29,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:41:29,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 02:41:29,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854267532] [2024-11-28 02:41:29,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:41:29,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:41:29,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:29,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:41:29,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:41:29,789 INFO L87 Difference]: Start difference. First operand 161 states and 209 transitions. Second operand has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-28 02:41:29,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:29,913 INFO L93 Difference]: Finished difference Result 161 states and 209 transitions. [2024-11-28 02:41:29,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:41:29,914 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 61 [2024-11-28 02:41:29,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:29,915 INFO L225 Difference]: With dead ends: 161 [2024-11-28 02:41:29,915 INFO L226 Difference]: Without dead ends: 159 [2024-11-28 02:41:29,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:41:29,916 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 81 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:29,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 103 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:41:29,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-28 02:41:29,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2024-11-28 02:41:29,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 106 states have (on average 1.4622641509433962) internal successors, (155), 133 states have internal predecessors, (155), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 02:41:29,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 201 transitions. [2024-11-28 02:41:29,930 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 201 transitions. Word has length 61 [2024-11-28 02:41:29,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:29,931 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 201 transitions. [2024-11-28 02:41:29,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-28 02:41:29,931 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 201 transitions. [2024-11-28 02:41:29,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 02:41:29,932 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:29,932 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:29,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 02:41:30,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:30,137 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:30,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:30,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1291414715, now seen corresponding path program 1 times [2024-11-28 02:41:30,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:30,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652852902] [2024-11-28 02:41:30,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:30,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:30,219 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-28 02:41:30,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:30,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652852902] [2024-11-28 02:41:30,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652852902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:30,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:30,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:41:30,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720589646] [2024-11-28 02:41:30,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:30,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:41:30,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:30,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:41:30,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:41:30,221 INFO L87 Difference]: Start difference. First operand 159 states and 201 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:41:30,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:30,339 INFO L93 Difference]: Finished difference Result 159 states and 201 transitions. [2024-11-28 02:41:30,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:41:30,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2024-11-28 02:41:30,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:30,341 INFO L225 Difference]: With dead ends: 159 [2024-11-28 02:41:30,341 INFO L226 Difference]: Without dead ends: 158 [2024-11-28 02:41:30,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:41:30,342 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 98 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:30,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 159 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:41:30,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-28 02:41:30,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-11-28 02:41:30,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 106 states have (on average 1.4433962264150944) internal successors, (153), 132 states have internal predecessors, (153), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 02:41:30,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 199 transitions. [2024-11-28 02:41:30,356 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 199 transitions. Word has length 62 [2024-11-28 02:41:30,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:30,356 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 199 transitions. [2024-11-28 02:41:30,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 02:41:30,356 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 199 transitions. [2024-11-28 02:41:30,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 02:41:30,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:30,357 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:30,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:41:30,358 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:30,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:30,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1379150379, now seen corresponding path program 1 times [2024-11-28 02:41:30,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:30,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939394628] [2024-11-28 02:41:30,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:30,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:30,432 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-28 02:41:30,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:30,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939394628] [2024-11-28 02:41:30,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939394628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:30,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:30,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:41:30,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509030478] [2024-11-28 02:41:30,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:30,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:41:30,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:30,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:41:30,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:41:30,434 INFO L87 Difference]: Start difference. First operand 158 states and 199 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:41:30,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:30,582 INFO L93 Difference]: Finished difference Result 179 states and 212 transitions. [2024-11-28 02:41:30,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:41:30,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 63 [2024-11-28 02:41:30,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:30,584 INFO L225 Difference]: With dead ends: 179 [2024-11-28 02:41:30,584 INFO L226 Difference]: Without dead ends: 177 [2024-11-28 02:41:30,585 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 [2024-11-28 02:41:30,585 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 47 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:30,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 144 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:41:30,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-28 02:41:30,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 162. [2024-11-28 02:41:30,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 110 states have (on average 1.4272727272727272) internal successors, (157), 136 states have internal predecessors, (157), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 02:41:30,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 203 transitions. [2024-11-28 02:41:30,600 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 203 transitions. Word has length 63 [2024-11-28 02:41:30,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:30,600 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 203 transitions. [2024-11-28 02:41:30,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:41:30,601 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 203 transitions. [2024-11-28 02:41:30,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 02:41:30,601 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:30,601 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:30,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:41:30,602 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:30,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:30,602 INFO L85 PathProgramCache]: Analyzing trace with hash 735346757, now seen corresponding path program 1 times [2024-11-28 02:41:30,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:30,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824328471] [2024-11-28 02:41:30,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:30,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:41:30,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1171557505] [2024-11-28 02:41:30,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:30,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:30,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:30,640 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:30,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 02:41:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:30,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 02:41:30,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:31,057 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-28 02:41:31,058 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:41:31,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:31,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824328471] [2024-11-28 02:41:31,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:41:31,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171557505] [2024-11-28 02:41:31,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171557505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:31,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:41:31,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 02:41:31,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984390789] [2024-11-28 02:41:31,286 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:41:31,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:41:31,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:31,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:41:31,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:41:31,288 INFO L87 Difference]: Start difference. First operand 162 states and 203 transitions. Second operand has 9 states, 8 states have (on average 4.5) internal successors, (36), 9 states have internal predecessors, (36), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 02:41:31,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:31,922 INFO L93 Difference]: Finished difference Result 253 states and 316 transitions. [2024-11-28 02:41:31,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:41:31,922 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.5) internal successors, (36), 9 states have internal predecessors, (36), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 72 [2024-11-28 02:41:31,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:31,924 INFO L225 Difference]: With dead ends: 253 [2024-11-28 02:41:31,924 INFO L226 Difference]: Without dead ends: 245 [2024-11-28 02:41:31,924 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:41:31,925 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 289 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:31,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 300 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:41:31,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-28 02:41:31,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 224. [2024-11-28 02:41:31,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 162 states have (on average 1.4320987654320987) internal successors, (232), 188 states have internal predecessors, (232), 33 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 02:41:31,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 298 transitions. [2024-11-28 02:41:31,958 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 298 transitions. Word has length 72 [2024-11-28 02:41:31,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:31,958 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 298 transitions. [2024-11-28 02:41:31,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.5) internal successors, (36), 9 states have internal predecessors, (36), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 02:41:31,959 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 298 transitions. [2024-11-28 02:41:31,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 02:41:31,959 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:31,960 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:31,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 02:41:32,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 02:41:32,161 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:32,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:32,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1320913041, now seen corresponding path program 1 times [2024-11-28 02:41:32,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:32,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764283069] [2024-11-28 02:41:32,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:32,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:41:32,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [665868889] [2024-11-28 02:41:32,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:32,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:32,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:32,192 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:32,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 02:41:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:32,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 02:41:32,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:32,617 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-28 02:41:32,617 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:41:33,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:33,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764283069] [2024-11-28 02:41:33,095 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:41:33,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665868889] [2024-11-28 02:41:33,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665868889] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:33,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:41:33,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 02:41:33,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727390166] [2024-11-28 02:41:33,096 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:41:33,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:41:33,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:33,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:41:33,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:41:33,097 INFO L87 Difference]: Start difference. First operand 224 states and 298 transitions. Second operand has 9 states, 8 states have (on average 4.625) internal successors, (37), 9 states have internal predecessors, (37), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 02:41:33,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:33,703 INFO L93 Difference]: Finished difference Result 308 states and 398 transitions. [2024-11-28 02:41:33,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:41:33,704 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 9 states have internal predecessors, (37), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 73 [2024-11-28 02:41:33,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:33,706 INFO L225 Difference]: With dead ends: 308 [2024-11-28 02:41:33,706 INFO L226 Difference]: Without dead ends: 305 [2024-11-28 02:41:33,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-11-28 02:41:33,707 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 245 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:33,709 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 311 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:41:33,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-28 02:41:33,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 277. [2024-11-28 02:41:33,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 205 states have (on average 1.4195121951219511) internal successors, (291), 231 states have internal predecessors, (291), 43 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-28 02:41:33,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 377 transitions. [2024-11-28 02:41:33,736 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 377 transitions. Word has length 73 [2024-11-28 02:41:33,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:33,737 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 377 transitions. [2024-11-28 02:41:33,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 9 states have internal predecessors, (37), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 02:41:33,737 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 377 transitions. [2024-11-28 02:41:33,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 02:41:33,738 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:33,738 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:33,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 02:41:33,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 02:41:33,939 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:33,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:33,939 INFO L85 PathProgramCache]: Analyzing trace with hash -2001368633, now seen corresponding path program 1 times [2024-11-28 02:41:33,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:33,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923463028] [2024-11-28 02:41:33,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:33,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:34,036 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-28 02:41:34,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:34,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923463028] [2024-11-28 02:41:34,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923463028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:34,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:34,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:41:34,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240197351] [2024-11-28 02:41:34,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:34,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:41:34,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:34,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:41:34,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:41:34,040 INFO L87 Difference]: Start difference. First operand 277 states and 377 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 02:41:34,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:34,597 INFO L93 Difference]: Finished difference Result 404 states and 553 transitions. [2024-11-28 02:41:34,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:41:34,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 74 [2024-11-28 02:41:34,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:34,600 INFO L225 Difference]: With dead ends: 404 [2024-11-28 02:41:34,600 INFO L226 Difference]: Without dead ends: 401 [2024-11-28 02:41:34,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:41:34,601 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 123 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:34,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 196 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:41:34,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-28 02:41:34,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 283. [2024-11-28 02:41:34,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 211 states have (on average 1.3838862559241707) internal successors, (292), 235 states have internal predecessors, (292), 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) [2024-11-28 02:41:34,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 382 transitions. [2024-11-28 02:41:34,635 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 382 transitions. Word has length 74 [2024-11-28 02:41:34,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:34,635 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 382 transitions. [2024-11-28 02:41:34,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 02:41:34,636 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 382 transitions. [2024-11-28 02:41:34,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 02:41:34,636 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:34,637 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:34,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 02:41:34,637 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:34,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:34,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1866080483, now seen corresponding path program 1 times [2024-11-28 02:41:34,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:34,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951647425] [2024-11-28 02:41:34,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:34,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:41:34,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [125706734] [2024-11-28 02:41:34,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:34,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:34,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:34,658 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:34,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 02:41:34,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:34,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 02:41:34,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:35,021 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-28 02:41:35,022 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:41:35,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:35,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951647425] [2024-11-28 02:41:35,106 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:41:35,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125706734] [2024-11-28 02:41:35,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125706734] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:35,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:41:35,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 02:41:35,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696210289] [2024-11-28 02:41:35,107 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:41:35,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:41:35,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:35,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:41:35,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:41:35,108 INFO L87 Difference]: Start difference. First operand 283 states and 382 transitions. Second operand has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 02:41:35,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:35,701 INFO L93 Difference]: Finished difference Result 323 states and 443 transitions. [2024-11-28 02:41:35,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:41:35,701 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 74 [2024-11-28 02:41:35,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:35,703 INFO L225 Difference]: With dead ends: 323 [2024-11-28 02:41:35,703 INFO L226 Difference]: Without dead ends: 317 [2024-11-28 02:41:35,704 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:41:35,704 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 160 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:35,705 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 223 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:41:35,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-28 02:41:35,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 277. [2024-11-28 02:41:35,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 211 states have (on average 1.3127962085308056) internal successors, (277), 229 states have internal predecessors, (277), 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) [2024-11-28 02:41:35,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 367 transitions. [2024-11-28 02:41:35,739 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 367 transitions. Word has length 74 [2024-11-28 02:41:35,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:35,739 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 367 transitions. [2024-11-28 02:41:35,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 02:41:35,740 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 367 transitions. [2024-11-28 02:41:35,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 02:41:35,741 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:35,741 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:35,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 02:41:35,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 02:41:35,945 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:35,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:35,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1912885421, now seen corresponding path program 1 times [2024-11-28 02:41:35,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:35,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989269566] [2024-11-28 02:41:35,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:35,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:41:35,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [803287863] [2024-11-28 02:41:35,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:35,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:35,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:35,974 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:35,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 02:41:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:36,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 02:41:36,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:36,477 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-28 02:41:36,477 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:41:37,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:37,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989269566] [2024-11-28 02:41:37,001 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:41:37,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803287863] [2024-11-28 02:41:37,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803287863] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:37,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:41:37,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 02:41:37,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893377979] [2024-11-28 02:41:37,001 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:41:37,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:41:37,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:37,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:41:37,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-11-28 02:41:37,002 INFO L87 Difference]: Start difference. First operand 277 states and 367 transitions. Second operand has 11 states, 10 states have (on average 3.9) internal successors, (39), 11 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 02:41:37,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:37,721 INFO L93 Difference]: Finished difference Result 296 states and 377 transitions. [2024-11-28 02:41:37,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 02:41:37,721 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.9) internal successors, (39), 11 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 75 [2024-11-28 02:41:37,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:37,723 INFO L225 Difference]: With dead ends: 296 [2024-11-28 02:41:37,723 INFO L226 Difference]: Without dead ends: 289 [2024-11-28 02:41:37,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2024-11-28 02:41:37,724 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 208 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:37,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 346 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:41:37,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-28 02:41:37,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 275. [2024-11-28 02:41:37,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 209 states have (on average 1.2966507177033493) internal successors, (271), 227 states have internal predecessors, (271), 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) [2024-11-28 02:41:37,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 361 transitions. [2024-11-28 02:41:37,758 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 361 transitions. Word has length 75 [2024-11-28 02:41:37,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:37,758 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 361 transitions. [2024-11-28 02:41:37,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.9) internal successors, (39), 11 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 02:41:37,758 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 361 transitions. [2024-11-28 02:41:37,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 02:41:37,759 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:37,759 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:37,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 02:41:37,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 02:41:37,960 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:37,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:37,960 INFO L85 PathProgramCache]: Analyzing trace with hash 2013920201, now seen corresponding path program 1 times [2024-11-28 02:41:37,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:37,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71359924] [2024-11-28 02:41:37,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:37,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:37,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:41:37,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [908591607] [2024-11-28 02:41:37,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:37,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:37,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:37,980 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:37,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 02:41:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:38,040 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 02:41:38,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:38,325 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-28 02:41:38,325 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:41:38,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:38,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71359924] [2024-11-28 02:41:38,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:41:38,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908591607] [2024-11-28 02:41:38,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908591607] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:38,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:41:38,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 02:41:38,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665733926] [2024-11-28 02:41:38,511 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:41:38,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:41:38,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:38,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:41:38,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:41:38,513 INFO L87 Difference]: Start difference. First operand 275 states and 361 transitions. Second operand has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 02:41:39,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:39,255 INFO L93 Difference]: Finished difference Result 552 states and 762 transitions. [2024-11-28 02:41:39,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:41:39,256 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 75 [2024-11-28 02:41:39,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:39,259 INFO L225 Difference]: With dead ends: 552 [2024-11-28 02:41:39,259 INFO L226 Difference]: Without dead ends: 548 [2024-11-28 02:41:39,259 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:41:39,261 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 358 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:39,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 323 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:41:39,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-11-28 02:41:39,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 439. [2024-11-28 02:41:39,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 343 states have (on average 1.2973760932944607) internal successors, (445), 361 states have internal predecessors, (445), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-28 02:41:39,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 595 transitions. [2024-11-28 02:41:39,327 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 595 transitions. Word has length 75 [2024-11-28 02:41:39,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:39,327 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 595 transitions. [2024-11-28 02:41:39,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 02:41:39,327 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 595 transitions. [2024-11-28 02:41:39,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 02:41:39,328 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:39,329 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:39,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 02:41:39,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:39,533 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:39,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:39,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1691382559, now seen corresponding path program 1 times [2024-11-28 02:41:39,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:39,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307784575] [2024-11-28 02:41:39,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:39,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:39,660 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-28 02:41:39,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:39,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307784575] [2024-11-28 02:41:39,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307784575] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:39,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188067083] [2024-11-28 02:41:39,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:39,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:39,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:39,664 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:39,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 02:41:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:39,720 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:41:39,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:39,791 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-28 02:41:39,792 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:41:39,941 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-28 02:41:39,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188067083] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:41:39,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:41:39,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 10 [2024-11-28 02:41:39,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491834882] [2024-11-28 02:41:39,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:41:39,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:41:39,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:39,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:41:39,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:41:39,943 INFO L87 Difference]: Start difference. First operand 439 states and 595 transitions. Second operand has 11 states, 10 states have (on average 9.8) internal successors, (98), 11 states have internal predecessors, (98), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-28 02:41:40,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:40,814 INFO L93 Difference]: Finished difference Result 704 states and 959 transitions. [2024-11-28 02:41:40,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 02:41:40,815 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.8) internal successors, (98), 11 states have internal predecessors, (98), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 96 [2024-11-28 02:41:40,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:40,819 INFO L225 Difference]: With dead ends: 704 [2024-11-28 02:41:40,819 INFO L226 Difference]: Without dead ends: 702 [2024-11-28 02:41:40,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=157, Invalid=305, Unknown=0, NotChecked=0, Total=462 [2024-11-28 02:41:40,821 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 670 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:40,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 343 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:41:40,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2024-11-28 02:41:40,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 578. [2024-11-28 02:41:40,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 454 states have (on average 1.2885462555066078) internal successors, (585), 471 states have internal predecessors, (585), 104 states have call successors, (104), 2 states have call predecessors, (104), 2 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-28 02:41:40,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 793 transitions. [2024-11-28 02:41:40,898 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 793 transitions. Word has length 96 [2024-11-28 02:41:40,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:40,898 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 793 transitions. [2024-11-28 02:41:40,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.8) internal successors, (98), 11 states have internal predecessors, (98), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-28 02:41:40,899 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 793 transitions. [2024-11-28 02:41:40,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 02:41:40,900 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:40,900 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:40,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 02:41:41,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:41,100 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:41,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:41,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1920998279, now seen corresponding path program 1 times [2024-11-28 02:41:41,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:41,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327899863] [2024-11-28 02:41:41,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:41,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:41,180 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-28 02:41:41,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:41,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327899863] [2024-11-28 02:41:41,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327899863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:41,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:41,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:41:41,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615784323] [2024-11-28 02:41:41,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:41,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:41:41,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:41,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:41:41,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:41:41,182 INFO L87 Difference]: Start difference. First operand 578 states and 793 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 02:41:41,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:41,311 INFO L93 Difference]: Finished difference Result 578 states and 793 transitions. [2024-11-28 02:41:41,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:41:41,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 98 [2024-11-28 02:41:41,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:41,315 INFO L225 Difference]: With dead ends: 578 [2024-11-28 02:41:41,315 INFO L226 Difference]: Without dead ends: 577 [2024-11-28 02:41:41,315 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 [2024-11-28 02:41:41,316 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 16 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:41,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 147 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:41:41,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-28 02:41:41,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2024-11-28 02:41:41,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 454 states have (on average 1.2797356828193833) internal successors, (581), 470 states have internal predecessors, (581), 104 states have call successors, (104), 2 states have call predecessors, (104), 2 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-28 02:41:41,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 789 transitions. [2024-11-28 02:41:41,390 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 789 transitions. Word has length 98 [2024-11-28 02:41:41,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:41,393 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 789 transitions. [2024-11-28 02:41:41,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 02:41:41,394 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 789 transitions. [2024-11-28 02:41:41,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-28 02:41:41,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:41,395 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:41,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 02:41:41,395 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:41,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:41,396 INFO L85 PathProgramCache]: Analyzing trace with hash 756595003, now seen corresponding path program 1 times [2024-11-28 02:41:41,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:41,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389350911] [2024-11-28 02:41:41,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:41,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:41,522 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-28 02:41:41,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:41,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389350911] [2024-11-28 02:41:41,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389350911] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:41,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199909798] [2024-11-28 02:41:41,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:41,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:41,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:41,525 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:41,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 02:41:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:41,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:41:41,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:41,744 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-28 02:41:41,744 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:41:41,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199909798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:41,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:41:41,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-28 02:41:41,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485994262] [2024-11-28 02:41:41,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:41,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:41:41,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:41,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:41:41,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:41:41,746 INFO L87 Difference]: Start difference. First operand 577 states and 789 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 02:41:41,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:41,981 INFO L93 Difference]: Finished difference Result 594 states and 820 transitions. [2024-11-28 02:41:41,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:41:41,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 100 [2024-11-28 02:41:41,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:41,988 INFO L225 Difference]: With dead ends: 594 [2024-11-28 02:41:41,988 INFO L226 Difference]: Without dead ends: 593 [2024-11-28 02:41:41,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:41:41,990 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 41 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:41,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 134 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:41:41,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-11-28 02:41:42,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 576. [2024-11-28 02:41:42,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 454 states have (on average 1.2709251101321586) internal successors, (577), 469 states have internal predecessors, (577), 104 states have call successors, (104), 2 states have call predecessors, (104), 2 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-28 02:41:42,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 785 transitions. [2024-11-28 02:41:42,060 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 785 transitions. Word has length 100 [2024-11-28 02:41:42,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:42,060 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 785 transitions. [2024-11-28 02:41:42,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 02:41:42,060 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 785 transitions. [2024-11-28 02:41:42,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 02:41:42,061 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:42,062 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:42,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-28 02:41:42,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 02:41:42,262 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:42,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:42,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1979608737, now seen corresponding path program 1 times [2024-11-28 02:41:42,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:42,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748311525] [2024-11-28 02:41:42,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:42,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:42,373 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-28 02:41:42,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:42,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748311525] [2024-11-28 02:41:42,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748311525] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:42,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470733679] [2024-11-28 02:41:42,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:42,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:42,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:42,376 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:42,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 02:41:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:42,428 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:41:42,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:42,601 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-28 02:41:42,602 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:41:42,743 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-28 02:41:42,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470733679] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:41:42,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:41:42,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-28 02:41:42,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005187433] [2024-11-28 02:41:42,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:41:42,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:41:42,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:42,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:41:42,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:41:42,746 INFO L87 Difference]: Start difference. First operand 576 states and 785 transitions. Second operand has 11 states, 10 states have (on average 12.3) internal successors, (123), 11 states have internal predecessors, (123), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-28 02:41:43,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:43,392 INFO L93 Difference]: Finished difference Result 844 states and 1165 transitions. [2024-11-28 02:41:43,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:41:43,393 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.3) internal successors, (123), 11 states have internal predecessors, (123), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 101 [2024-11-28 02:41:43,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:43,397 INFO L225 Difference]: With dead ends: 844 [2024-11-28 02:41:43,397 INFO L226 Difference]: Without dead ends: 842 [2024-11-28 02:41:43,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:41:43,399 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 208 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:43,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 314 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:41:43,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2024-11-28 02:41:43,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 713. [2024-11-28 02:41:43,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 569 states have (on average 1.2706502636203867) internal successors, (723), 584 states have internal predecessors, (723), 126 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-28 02:41:43,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 975 transitions. [2024-11-28 02:41:43,497 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 975 transitions. Word has length 101 [2024-11-28 02:41:43,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:43,497 INFO L471 AbstractCegarLoop]: Abstraction has 713 states and 975 transitions. [2024-11-28 02:41:43,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.3) internal successors, (123), 11 states have internal predecessors, (123), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-28 02:41:43,497 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 975 transitions. [2024-11-28 02:41:43,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 02:41:43,499 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:43,499 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:43,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 02:41:43,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-28 02:41:43,700 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:43,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:43,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1768288353, now seen corresponding path program 1 times [2024-11-28 02:41:43,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:43,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871759812] [2024-11-28 02:41:43,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:43,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:41:43,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1647631074] [2024-11-28 02:41:43,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:43,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:43,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:43,748 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:43,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 02:41:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:43,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 02:41:43,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:44,527 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-28 02:41:44,527 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:41:44,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:44,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871759812] [2024-11-28 02:41:44,720 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:41:44,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647631074] [2024-11-28 02:41:44,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647631074] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:44,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:41:44,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 02:41:44,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887609235] [2024-11-28 02:41:44,721 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:41:44,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:41:44,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:44,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:41:44,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:41:44,722 INFO L87 Difference]: Start difference. First operand 713 states and 975 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-28 02:41:45,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:45,640 INFO L93 Difference]: Finished difference Result 793 states and 1081 transitions. [2024-11-28 02:41:45,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 02:41:45,641 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) Word has length 109 [2024-11-28 02:41:45,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:45,660 INFO L225 Difference]: With dead ends: 793 [2024-11-28 02:41:45,660 INFO L226 Difference]: Without dead ends: 790 [2024-11-28 02:41:45,661 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2024-11-28 02:41:45,661 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 202 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:45,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 341 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:41:45,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2024-11-28 02:41:45,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 775. [2024-11-28 02:41:45,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 619 states have (on average 1.2697899838449112) internal successors, (786), 634 states have internal predecessors, (786), 138 states have call successors, (138), 2 states have call predecessors, (138), 2 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-28 02:41:45,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1062 transitions. [2024-11-28 02:41:45,768 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1062 transitions. Word has length 109 [2024-11-28 02:41:45,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:45,769 INFO L471 AbstractCegarLoop]: Abstraction has 775 states and 1062 transitions. [2024-11-28 02:41:45,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-28 02:41:45,770 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1062 transitions. [2024-11-28 02:41:45,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 02:41:45,771 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:45,771 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:45,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-28 02:41:45,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-28 02:41:45,976 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:45,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:45,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1017635959, now seen corresponding path program 1 times [2024-11-28 02:41:45,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:45,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694854852] [2024-11-28 02:41:45,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:45,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:41:45,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [345721801] [2024-11-28 02:41:45,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:45,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:45,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:46,000 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:46,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 02:41:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:46,065 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 02:41:46,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:46,796 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-28 02:41:46,797 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:41:47,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:47,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694854852] [2024-11-28 02:41:47,183 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:41:47,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345721801] [2024-11-28 02:41:47,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345721801] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:47,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:41:47,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 02:41:47,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299527589] [2024-11-28 02:41:47,183 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:41:47,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:41:47,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:47,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:41:47,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:41:47,184 INFO L87 Difference]: Start difference. First operand 775 states and 1062 transitions. Second operand has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-28 02:41:48,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:48,116 INFO L93 Difference]: Finished difference Result 797 states and 1079 transitions. [2024-11-28 02:41:48,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 02:41:48,116 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) Word has length 110 [2024-11-28 02:41:48,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:48,120 INFO L225 Difference]: With dead ends: 797 [2024-11-28 02:41:48,121 INFO L226 Difference]: Without dead ends: 794 [2024-11-28 02:41:48,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2024-11-28 02:41:48,122 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 225 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:48,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 385 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:41:48,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2024-11-28 02:41:48,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 777. [2024-11-28 02:41:48,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 621 states have (on average 1.2592592592592593) internal successors, (782), 636 states have internal predecessors, (782), 138 states have call successors, (138), 2 states have call predecessors, (138), 2 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-28 02:41:48,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1058 transitions. [2024-11-28 02:41:48,232 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1058 transitions. Word has length 110 [2024-11-28 02:41:48,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:48,232 INFO L471 AbstractCegarLoop]: Abstraction has 777 states and 1058 transitions. [2024-11-28 02:41:48,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-28 02:41:48,233 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1058 transitions. [2024-11-28 02:41:48,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 02:41:48,234 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:48,234 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:48,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-28 02:41:48,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-28 02:41:48,439 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:48,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:48,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1481943713, now seen corresponding path program 1 times [2024-11-28 02:41:48,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:48,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856903763] [2024-11-28 02:41:48,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:48,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:48,556 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-28 02:41:48,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:48,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856903763] [2024-11-28 02:41:48,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856903763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:48,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:48,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:41:48,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890302677] [2024-11-28 02:41:48,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:48,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:41:48,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:48,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:41:48,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:41:48,558 INFO L87 Difference]: Start difference. First operand 777 states and 1058 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 02:41:49,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:49,056 INFO L93 Difference]: Finished difference Result 780 states and 1058 transitions. [2024-11-28 02:41:49,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:41:49,056 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 111 [2024-11-28 02:41:49,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:49,060 INFO L225 Difference]: With dead ends: 780 [2024-11-28 02:41:49,060 INFO L226 Difference]: Without dead ends: 779 [2024-11-28 02:41:49,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:41:49,061 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 81 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:49,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 197 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:41:49,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2024-11-28 02:41:49,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 740. [2024-11-28 02:41:49,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 589 states have (on average 1.2495755517826825) internal successors, (736), 603 states have internal predecessors, (736), 134 states have call successors, (134), 2 states have call predecessors, (134), 2 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-28 02:41:49,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1004 transitions. [2024-11-28 02:41:49,188 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1004 transitions. Word has length 111 [2024-11-28 02:41:49,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:49,188 INFO L471 AbstractCegarLoop]: Abstraction has 740 states and 1004 transitions. [2024-11-28 02:41:49,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 02:41:49,188 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1004 transitions. [2024-11-28 02:41:49,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 02:41:49,190 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:49,190 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:49,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 02:41:49,190 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:49,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:49,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1304385095, now seen corresponding path program 1 times [2024-11-28 02:41:49,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:49,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235716829] [2024-11-28 02:41:49,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:49,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:41:49,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [418286087] [2024-11-28 02:41:49,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:49,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:49,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:49,215 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:49,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 02:41:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:49,277 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 02:41:49,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:49,906 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-28 02:41:49,907 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:41:58,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:58,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235716829] [2024-11-28 02:41:58,281 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:41:58,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418286087] [2024-11-28 02:41:58,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418286087] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:58,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:41:58,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 02:41:58,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403672447] [2024-11-28 02:41:58,282 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:41:58,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:41:58,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:58,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:41:58,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=221, Unknown=2, NotChecked=0, Total=272 [2024-11-28 02:41:58,283 INFO L87 Difference]: Start difference. First operand 740 states and 1004 transitions. Second operand has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-28 02:41:59,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:59,435 INFO L93 Difference]: Finished difference Result 754 states and 1010 transitions. [2024-11-28 02:41:59,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 02:41:59,436 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 112 [2024-11-28 02:41:59,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:41:59,440 INFO L225 Difference]: With dead ends: 754 [2024-11-28 02:41:59,440 INFO L226 Difference]: Without dead ends: 747 [2024-11-28 02:41:59,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=94, Invalid=410, Unknown=2, NotChecked=0, Total=506 [2024-11-28 02:41:59,444 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 169 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:41:59,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 368 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:41:59,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2024-11-28 02:41:59,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 738. [2024-11-28 02:41:59,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 587 states have (on average 1.2385008517887564) internal successors, (727), 601 states have internal predecessors, (727), 134 states have call successors, (134), 2 states have call predecessors, (134), 2 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-28 02:41:59,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 995 transitions. [2024-11-28 02:41:59,563 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 995 transitions. Word has length 112 [2024-11-28 02:41:59,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:41:59,564 INFO L471 AbstractCegarLoop]: Abstraction has 738 states and 995 transitions. [2024-11-28 02:41:59,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-28 02:41:59,564 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 995 transitions. [2024-11-28 02:41:59,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 02:41:59,566 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:41:59,566 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:59,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-28 02:41:59,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 02:41:59,770 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:41:59,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:59,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1672546769, now seen corresponding path program 2 times [2024-11-28 02:41:59,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:59,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546348658] [2024-11-28 02:41:59,772 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:41:59,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:59,811 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:41:59,811 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:41:59,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [779642389] [2024-11-28 02:41:59,813 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:41:59,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:59,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:59,815 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:59,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 02:41:59,969 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:41:59,969 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:41:59,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:41:59,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:42:00,386 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 3 proven. 28 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-28 02:42:00,387 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:42:00,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:42:00,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546348658] [2024-11-28 02:42:00,590 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:42:00,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779642389] [2024-11-28 02:42:00,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779642389] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:42:00,591 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:42:00,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 02:42:00,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141894633] [2024-11-28 02:42:00,591 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:42:00,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:42:00,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:42:00,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:42:00,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:42:00,592 INFO L87 Difference]: Start difference. First operand 738 states and 995 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 02:42:01,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:42:01,074 INFO L93 Difference]: Finished difference Result 861 states and 1174 transitions. [2024-11-28 02:42:01,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:42:01,074 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 112 [2024-11-28 02:42:01,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:42:01,079 INFO L225 Difference]: With dead ends: 861 [2024-11-28 02:42:01,080 INFO L226 Difference]: Without dead ends: 857 [2024-11-28 02:42:01,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:42:01,081 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 116 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:42:01,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 148 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:42:01,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2024-11-28 02:42:01,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 628. [2024-11-28 02:42:01,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 497 states have (on average 1.1911468812877264) internal successors, (592), 511 states have internal predecessors, (592), 114 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-28 02:42:01,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 820 transitions. [2024-11-28 02:42:01,210 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 820 transitions. Word has length 112 [2024-11-28 02:42:01,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:42:01,215 INFO L471 AbstractCegarLoop]: Abstraction has 628 states and 820 transitions. [2024-11-28 02:42:01,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 8 states have internal predecessors, (56), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 02:42:01,215 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 820 transitions. [2024-11-28 02:42:01,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 02:42:01,217 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:42:01,217 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:42:01,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-28 02:42:01,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-28 02:42:01,418 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:42:01,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:01,418 INFO L85 PathProgramCache]: Analyzing trace with hash -847647097, now seen corresponding path program 2 times [2024-11-28 02:42:01,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:42:01,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268137984] [2024-11-28 02:42:01,419 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:42:01,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:42:01,442 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:42:01,442 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:42:01,533 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-28 02:42:01,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:42:01,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268137984] [2024-11-28 02:42:01,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268137984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:42:01,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:42:01,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:42:01,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549679214] [2024-11-28 02:42:01,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:42:01,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:42:01,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:42:01,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:42:01,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:42:01,536 INFO L87 Difference]: Start difference. First operand 628 states and 820 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 02:42:02,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:42:02,323 INFO L93 Difference]: Finished difference Result 787 states and 1025 transitions. [2024-11-28 02:42:02,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:42:02,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2024-11-28 02:42:02,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:42:02,327 INFO L225 Difference]: With dead ends: 787 [2024-11-28 02:42:02,327 INFO L226 Difference]: Without dead ends: 423 [2024-11-28 02:42:02,328 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:42:02,329 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 28 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:42:02,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 145 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:42:02,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-28 02:42:02,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 418. [2024-11-28 02:42:02,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 327 states have (on average 1.1957186544342508) internal successors, (391), 341 states have internal predecessors, (391), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-28 02:42:02,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 539 transitions. [2024-11-28 02:42:02,411 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 539 transitions. Word has length 118 [2024-11-28 02:42:02,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:42:02,412 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 539 transitions. [2024-11-28 02:42:02,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 02:42:02,412 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 539 transitions. [2024-11-28 02:42:02,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-28 02:42:02,414 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:42:02,414 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:42:02,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 02:42:02,415 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:42:02,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:02,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1333588101, now seen corresponding path program 2 times [2024-11-28 02:42:02,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:42:02,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908223176] [2024-11-28 02:42:02,416 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:42:02,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:42:02,442 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:42:02,442 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:42:02,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [131611064] [2024-11-28 02:42:02,444 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:42:02,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:02,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:42:02,446 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:42:02,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 02:42:02,533 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:42:02,533 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:42:02,535 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 02:42:02,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:42:03,612 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 39 proven. 55 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2024-11-28 02:42:03,613 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:42:04,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:42:04,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908223176] [2024-11-28 02:42:04,058 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:42:04,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131611064] [2024-11-28 02:42:04,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131611064] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:42:04,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:42:04,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-28 02:42:04,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998525581] [2024-11-28 02:42:04,058 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:42:04,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 02:42:04,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:42:04,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 02:42:04,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2024-11-28 02:42:04,060 INFO L87 Difference]: Start difference. First operand 418 states and 539 transitions. Second operand has 17 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 8 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 8 states have call successors, (17) [2024-11-28 02:42:06,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:42:06,936 INFO L93 Difference]: Finished difference Result 588 states and 771 transitions. [2024-11-28 02:42:06,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-28 02:42:06,937 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 8 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 8 states have call successors, (17) Word has length 146 [2024-11-28 02:42:06,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:42:06,940 INFO L225 Difference]: With dead ends: 588 [2024-11-28 02:42:06,940 INFO L226 Difference]: Without dead ends: 585 [2024-11-28 02:42:06,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=310, Invalid=1412, Unknown=0, NotChecked=0, Total=1722 [2024-11-28 02:42:06,942 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 376 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 2511 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 2592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:42:06,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 431 Invalid, 2592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2511 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 02:42:06,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-28 02:42:07,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 548. [2024-11-28 02:42:07,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 434 states have (on average 1.2004608294930876) internal successors, (521), 448 states have internal predecessors, (521), 97 states have call successors, (97), 2 states have call predecessors, (97), 2 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-28 02:42:07,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 715 transitions. [2024-11-28 02:42:07,058 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 715 transitions. Word has length 146 [2024-11-28 02:42:07,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:42:07,059 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 715 transitions. [2024-11-28 02:42:07,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 8 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 8 states have call successors, (17) [2024-11-28 02:42:07,060 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 715 transitions. [2024-11-28 02:42:07,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 02:42:07,062 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:42:07,062 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:42:07,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-28 02:42:07,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:07,267 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:42:07,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:07,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1608441775, now seen corresponding path program 2 times [2024-11-28 02:42:07,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:42:07,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385191567] [2024-11-28 02:42:07,267 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:42:07,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:42:07,301 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:42:07,302 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:42:07,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1825833951] [2024-11-28 02:42:07,303 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:42:07,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:07,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:42:07,306 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:42:07,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 02:42:07,393 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:42:07,393 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:42:07,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 02:42:07,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:42:08,478 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 3 proven. 53 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-28 02:42:08,478 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:42:08,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:42:08,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385191567] [2024-11-28 02:42:08,826 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:42:08,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825833951] [2024-11-28 02:42:08,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825833951] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:42:08,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:42:08,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 02:42:08,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482319973] [2024-11-28 02:42:08,827 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:42:08,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 02:42:08,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:42:08,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 02:42:08,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:42:08,828 INFO L87 Difference]: Start difference. First operand 548 states and 715 transitions. Second operand has 13 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-28 02:42:09,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:42:09,523 INFO L93 Difference]: Finished difference Result 632 states and 822 transitions. [2024-11-28 02:42:09,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 02:42:09,523 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 147 [2024-11-28 02:42:09,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:42:09,527 INFO L225 Difference]: With dead ends: 632 [2024-11-28 02:42:09,527 INFO L226 Difference]: Without dead ends: 629 [2024-11-28 02:42:09,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:42:09,528 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 166 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:42:09,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 185 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:42:09,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2024-11-28 02:42:09,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 612. [2024-11-28 02:42:09,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 486 states have (on average 1.1934156378600822) internal successors, (580), 500 states have internal predecessors, (580), 109 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2024-11-28 02:42:09,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 798 transitions. [2024-11-28 02:42:09,630 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 798 transitions. Word has length 147 [2024-11-28 02:42:09,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:42:09,631 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 798 transitions. [2024-11-28 02:42:09,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-28 02:42:09,631 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 798 transitions. [2024-11-28 02:42:09,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 02:42:09,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:42:09,632 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:42:09,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 02:42:09,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-28 02:42:09,837 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:42:09,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:09,837 INFO L85 PathProgramCache]: Analyzing trace with hash 475682579, now seen corresponding path program 2 times [2024-11-28 02:42:09,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:42:09,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617781289] [2024-11-28 02:42:09,837 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:42:09,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:42:09,865 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:42:09,866 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:42:09,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [77326767] [2024-11-28 02:42:09,867 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:42:09,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:09,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:42:09,872 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:42:09,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 02:42:09,946 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:42:09,946 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:42:09,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 02:42:09,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:42:10,893 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-28 02:42:10,893 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:42:12,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:42:12,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617781289] [2024-11-28 02:42:12,338 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:42:12,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77326767] [2024-11-28 02:42:12,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77326767] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:42:12,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:42:12,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-28 02:42:12,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727952397] [2024-11-28 02:42:12,338 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:42:12,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 02:42:12,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:42:12,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 02:42:12,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2024-11-28 02:42:12,339 INFO L87 Difference]: Start difference. First operand 612 states and 798 transitions. Second operand has 15 states, 14 states have (on average 5.214285714285714) internal successors, (73), 15 states have internal predecessors, (73), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-28 02:42:13,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:42:13,603 INFO L93 Difference]: Finished difference Result 626 states and 804 transitions. [2024-11-28 02:42:13,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 02:42:13,604 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.214285714285714) internal successors, (73), 15 states have internal predecessors, (73), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) Word has length 149 [2024-11-28 02:42:13,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:42:13,607 INFO L225 Difference]: With dead ends: 626 [2024-11-28 02:42:13,607 INFO L226 Difference]: Without dead ends: 619 [2024-11-28 02:42:13,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=285, Invalid=1047, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 02:42:13,608 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 186 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 1255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:42:13,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 472 Invalid, 1255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1226 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:42:13,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2024-11-28 02:42:13,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 569. [2024-11-28 02:42:13,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 451 states have (on average 1.1796008869179602) internal successors, (532), 465 states have internal predecessors, (532), 101 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-28 02:42:13,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 734 transitions. [2024-11-28 02:42:13,714 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 734 transitions. Word has length 149 [2024-11-28 02:42:13,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:42:13,715 INFO L471 AbstractCegarLoop]: Abstraction has 569 states and 734 transitions. [2024-11-28 02:42:13,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.214285714285714) internal successors, (73), 15 states have internal predecessors, (73), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-28 02:42:13,715 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 734 transitions. [2024-11-28 02:42:13,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-28 02:42:13,716 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:42:13,716 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:42:13,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-28 02:42:13,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:13,917 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:42:13,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:13,917 INFO L85 PathProgramCache]: Analyzing trace with hash 107520905, now seen corresponding path program 3 times [2024-11-28 02:42:13,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:42:13,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555972805] [2024-11-28 02:42:13,918 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:42:13,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:42:13,970 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2024-11-28 02:42:13,970 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:42:13,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [788042793] [2024-11-28 02:42:13,971 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:42:13,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:13,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:42:13,977 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:42:13,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 02:42:14,098 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 02:42:14,098 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:42:14,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 02:42:14,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:42:14,550 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 51 proven. 14 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2024-11-28 02:42:14,550 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:42:14,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:42:14,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555972805] [2024-11-28 02:42:14,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:42:14,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788042793] [2024-11-28 02:42:14,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788042793] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:42:14,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:42:14,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 02:42:14,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655930473] [2024-11-28 02:42:14,816 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:42:14,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:42:14,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:42:14,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:42:14,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:42:14,817 INFO L87 Difference]: Start difference. First operand 569 states and 734 transitions. Second operand has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 02:42:15,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:42:15,775 INFO L93 Difference]: Finished difference Result 717 states and 937 transitions. [2024-11-28 02:42:15,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 02:42:15,776 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 149 [2024-11-28 02:42:15,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:42:15,780 INFO L225 Difference]: With dead ends: 717 [2024-11-28 02:42:15,780 INFO L226 Difference]: Without dead ends: 713 [2024-11-28 02:42:15,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2024-11-28 02:42:15,781 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 259 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:42:15,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 326 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:42:15,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-11-28 02:42:15,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 558. [2024-11-28 02:42:15,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 441 states have (on average 1.1768707482993197) internal successors, (519), 455 states have internal predecessors, (519), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-28 02:42:15,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 719 transitions. [2024-11-28 02:42:15,899 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 719 transitions. Word has length 149 [2024-11-28 02:42:15,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:42:15,899 INFO L471 AbstractCegarLoop]: Abstraction has 558 states and 719 transitions. [2024-11-28 02:42:15,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 02:42:15,900 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 719 transitions. [2024-11-28 02:42:15,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 02:42:15,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:42:15,901 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:42:15,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-28 02:42:16,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:16,105 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:42:16,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:16,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1428873611, now seen corresponding path program 3 times [2024-11-28 02:42:16,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:42:16,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343584690] [2024-11-28 02:42:16,106 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:42:16,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:42:16,137 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-28 02:42:16,137 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:42:16,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2018972020] [2024-11-28 02:42:16,138 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:42:16,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:16,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:42:16,141 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:42:16,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 02:42:16,216 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 02:42:16,216 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:42:16,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 02:42:16,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:42:16,474 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 79 proven. 44 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2024-11-28 02:42:16,474 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:42:16,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:42:16,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343584690] [2024-11-28 02:42:16,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:42:16,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018972020] [2024-11-28 02:42:16,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018972020] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:42:16,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:42:16,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 02:42:16,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658997982] [2024-11-28 02:42:16,804 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:42:16,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:42:16,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:42:16,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:42:16,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:42:16,807 INFO L87 Difference]: Start difference. First operand 558 states and 719 transitions. Second operand has 11 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 4 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-28 02:42:18,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:42:18,281 INFO L93 Difference]: Finished difference Result 577 states and 746 transitions. [2024-11-28 02:42:18,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 02:42:18,281 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 4 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 154 [2024-11-28 02:42:18,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:42:18,284 INFO L225 Difference]: With dead ends: 577 [2024-11-28 02:42:18,284 INFO L226 Difference]: Without dead ends: 574 [2024-11-28 02:42:18,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=155, Invalid=601, Unknown=0, NotChecked=0, Total=756 [2024-11-28 02:42:18,285 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 130 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:42:18,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 250 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 02:42:18,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-11-28 02:42:18,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 358. [2024-11-28 02:42:18,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 280 states have (on average 1.1464285714285714) internal successors, (321), 291 states have internal predecessors, (321), 64 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-28 02:42:18,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 449 transitions. [2024-11-28 02:42:18,378 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 449 transitions. Word has length 154 [2024-11-28 02:42:18,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:42:18,379 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 449 transitions. [2024-11-28 02:42:18,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 4 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-28 02:42:18,379 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 449 transitions. [2024-11-28 02:42:18,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 02:42:18,380 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:42:18,380 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:42:18,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-28 02:42:18,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:18,581 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:42:18,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:18,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1345408927, now seen corresponding path program 3 times [2024-11-28 02:42:18,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:42:18,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474326063] [2024-11-28 02:42:18,582 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:42:18,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:42:18,621 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-28 02:42:18,621 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:42:18,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [854093021] [2024-11-28 02:42:18,624 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:42:18,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:18,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:42:18,627 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:42:18,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 02:42:18,705 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 02:42:18,705 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:42:18,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-28 02:42:18,710 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:42:19,493 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 99 proven. 62 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2024-11-28 02:42:19,493 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:42:20,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:42:20,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474326063] [2024-11-28 02:42:20,315 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:42:20,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854093021] [2024-11-28 02:42:20,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854093021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:42:20,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:42:20,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-28 02:42:20,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177870540] [2024-11-28 02:42:20,316 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:42:20,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 02:42:20,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:42:20,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 02:42:20,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2024-11-28 02:42:20,317 INFO L87 Difference]: Start difference. First operand 358 states and 449 transitions. Second operand has 15 states, 14 states have (on average 4.928571428571429) internal successors, (69), 15 states have internal predecessors, (69), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 02:42:24,369 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] [2024-11-28 02:42:25,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:42:25,735 INFO L93 Difference]: Finished difference Result 378 states and 474 transitions. [2024-11-28 02:42:25,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 02:42:25,735 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.928571428571429) internal successors, (69), 15 states have internal predecessors, (69), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) Word has length 155 [2024-11-28 02:42:25,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:42:25,737 INFO L225 Difference]: With dead ends: 378 [2024-11-28 02:42:25,737 INFO L226 Difference]: Without dead ends: 362 [2024-11-28 02:42:25,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=243, Invalid=947, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 02:42:25,738 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 215 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:42:25,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 194 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2024-11-28 02:42:25,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-28 02:42:25,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 296. [2024-11-28 02:42:25,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 235 states have (on average 1.0808510638297872) internal successors, (254), 241 states have internal predecessors, (254), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 02:42:25,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 358 transitions. [2024-11-28 02:42:25,825 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 358 transitions. Word has length 155 [2024-11-28 02:42:25,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:42:25,825 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 358 transitions. [2024-11-28 02:42:25,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.928571428571429) internal successors, (69), 15 states have internal predecessors, (69), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 02:42:25,825 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 358 transitions. [2024-11-28 02:42:25,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 02:42:25,826 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:42:25,827 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:42:25,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-28 02:42:26,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:26,031 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:42:26,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:26,032 INFO L85 PathProgramCache]: Analyzing trace with hash -152820957, now seen corresponding path program 3 times [2024-11-28 02:42:26,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:42:26,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401106052] [2024-11-28 02:42:26,032 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:42:26,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:42:26,079 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-28 02:42:26,079 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:42:26,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [381584441] [2024-11-28 02:42:26,080 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:42:26,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:26,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:42:26,083 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:42:26,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 02:42:26,158 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 02:42:26,159 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:42:26,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 02:42:26,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:42:26,712 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 66 proven. 65 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 02:42:26,712 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:42:26,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:42:26,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401106052] [2024-11-28 02:42:26,995 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:42:26,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381584441] [2024-11-28 02:42:26,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381584441] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:42:26,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:42:26,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 02:42:26,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108506499] [2024-11-28 02:42:26,996 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:42:26,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 02:42:26,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:42:26,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 02:42:26,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:42:26,997 INFO L87 Difference]: Start difference. First operand 296 states and 358 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 13 states have internal predecessors, (68), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 02:42:27,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:42:27,818 INFO L93 Difference]: Finished difference Result 300 states and 363 transitions. [2024-11-28 02:42:27,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 02:42:27,818 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 13 states have internal predecessors, (68), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 6 states have call successors, (15) Word has length 157 [2024-11-28 02:42:27,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:42:27,820 INFO L225 Difference]: With dead ends: 300 [2024-11-28 02:42:27,820 INFO L226 Difference]: Without dead ends: 288 [2024-11-28 02:42:27,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=152, Invalid=660, Unknown=0, NotChecked=0, Total=812 [2024-11-28 02:42:27,820 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 144 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:42:27,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 154 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:42:27,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-28 02:42:27,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 273. [2024-11-28 02:42:27,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 215 states have (on average 1.0744186046511628) internal successors, (231), 220 states have internal predecessors, (231), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-28 02:42:27,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 331 transitions. [2024-11-28 02:42:27,894 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 331 transitions. Word has length 157 [2024-11-28 02:42:27,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:42:27,894 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 331 transitions. [2024-11-28 02:42:27,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 13 states have internal predecessors, (68), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 02:42:27,894 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 331 transitions. [2024-11-28 02:42:27,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-28 02:42:27,896 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:42:27,896 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:42:27,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-28 02:42:28,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:28,097 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:42:28,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:28,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1804855223, now seen corresponding path program 1 times [2024-11-28 02:42:28,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:42:28,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833403916] [2024-11-28 02:42:28,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:42:28,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:42:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:42:28,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 936 trivial. 0 not checked. [2024-11-28 02:42:28,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:42:28,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833403916] [2024-11-28 02:42:28,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833403916] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:42:28,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091427993] [2024-11-28 02:42:28,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:42:28,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:28,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:42:28,460 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:42:28,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 02:42:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:42:28,558 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:42:28,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:42:28,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 551 proven. 36 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2024-11-28 02:42:28,736 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:42:29,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 103 proven. 36 refuted. 0 times theorem prover too weak. 957 trivial. 0 not checked. [2024-11-28 02:42:29,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091427993] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:42:29,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:42:29,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 15 [2024-11-28 02:42:29,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866531979] [2024-11-28 02:42:29,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:42:29,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 02:42:29,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:42:29,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 02:42:29,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:42:29,033 INFO L87 Difference]: Start difference. First operand 273 states and 331 transitions. Second operand has 15 states, 15 states have (on average 12.2) internal successors, (183), 15 states have internal predecessors, (183), 13 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 13 states have call predecessors, (47), 13 states have call successors, (47) [2024-11-28 02:42:29,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:42:29,984 INFO L93 Difference]: Finished difference Result 494 states and 593 transitions. [2024-11-28 02:42:29,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 02:42:29,984 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 12.2) internal successors, (183), 15 states have internal predecessors, (183), 13 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 13 states have call predecessors, (47), 13 states have call successors, (47) Word has length 220 [2024-11-28 02:42:29,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:42:29,985 INFO L225 Difference]: With dead ends: 494 [2024-11-28 02:42:29,986 INFO L226 Difference]: Without dead ends: 316 [2024-11-28 02:42:29,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 431 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=183, Invalid=687, Unknown=0, NotChecked=0, Total=870 [2024-11-28 02:42:29,987 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 165 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:42:29,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 468 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:42:29,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-28 02:42:30,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 302. [2024-11-28 02:42:30,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 239 states have (on average 1.0669456066945606) internal successors, (255), 244 states have internal predecessors, (255), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-28 02:42:30,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 365 transitions. [2024-11-28 02:42:30,070 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 365 transitions. Word has length 220 [2024-11-28 02:42:30,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:42:30,071 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 365 transitions. [2024-11-28 02:42:30,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.2) internal successors, (183), 15 states have internal predecessors, (183), 13 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 13 states have call predecessors, (47), 13 states have call successors, (47) [2024-11-28 02:42:30,071 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 365 transitions. [2024-11-28 02:42:30,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-28 02:42:30,073 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:42:30,073 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:42:30,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-28 02:42:30,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:30,274 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:42:30,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:30,274 INFO L85 PathProgramCache]: Analyzing trace with hash 628085687, now seen corresponding path program 2 times [2024-11-28 02:42:30,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:42:30,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147083336] [2024-11-28 02:42:30,275 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:42:30,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:42:30,301 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:42:30,301 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:42:30,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 936 trivial. 0 not checked. [2024-11-28 02:42:30,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:42:30,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147083336] [2024-11-28 02:42:30,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147083336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:42:30,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109412290] [2024-11-28 02:42:30,572 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:42:30,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:30,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:42:30,577 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:42:30,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 02:42:30,674 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:42:30,674 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:42:30,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:42:30,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:42:31,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 936 trivial. 0 not checked. [2024-11-28 02:42:31,121 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:42:31,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 936 trivial. 0 not checked. [2024-11-28 02:42:31,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109412290] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:42:31,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:42:31,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-11-28 02:42:31,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637580099] [2024-11-28 02:42:31,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:42:31,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 02:42:31,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:42:31,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 02:42:31,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=291, Unknown=0, NotChecked=0, Total=462 [2024-11-28 02:42:31,488 INFO L87 Difference]: Start difference. First operand 302 states and 365 transitions. Second operand has 22 states, 21 states have (on average 13.285714285714286) internal successors, (279), 22 states have internal predecessors, (279), 21 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 21 states have call predecessors, (67), 21 states have call successors, (67) [2024-11-28 02:42:32,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:42:32,982 INFO L93 Difference]: Finished difference Result 908 states and 1112 transitions. [2024-11-28 02:42:32,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 02:42:32,982 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 13.285714285714286) internal successors, (279), 22 states have internal predecessors, (279), 21 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 21 states have call predecessors, (67), 21 states have call successors, (67) Word has length 220 [2024-11-28 02:42:32,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:42:32,986 INFO L225 Difference]: With dead ends: 908 [2024-11-28 02:42:32,986 INFO L226 Difference]: Without dead ends: 841 [2024-11-28 02:42:32,987 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=560, Invalid=922, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 02:42:32,987 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 1189 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:42:32,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 438 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:42:32,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2024-11-28 02:42:33,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 565. [2024-11-28 02:42:33,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 452 states have (on average 1.0685840707964602) internal successors, (483), 457 states have internal predecessors, (483), 105 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-28 02:42:33,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 693 transitions. [2024-11-28 02:42:33,173 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 693 transitions. Word has length 220 [2024-11-28 02:42:33,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:42:33,175 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 693 transitions. [2024-11-28 02:42:33,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 13.285714285714286) internal successors, (279), 22 states have internal predecessors, (279), 21 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 21 states have call predecessors, (67), 21 states have call successors, (67) [2024-11-28 02:42:33,175 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 693 transitions. [2024-11-28 02:42:33,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-11-28 02:42:33,177 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:42:33,177 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:42:33,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-28 02:42:33,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-28 02:42:33,381 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:42:33,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:33,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1107998911, now seen corresponding path program 1 times [2024-11-28 02:42:33,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:42:33,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773493404] [2024-11-28 02:42:33,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:42:33,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:42:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:42:33,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1707 backedges. 57 proven. 234 refuted. 0 times theorem prover too weak. 1416 trivial. 0 not checked. [2024-11-28 02:42:33,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:42:33,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773493404] [2024-11-28 02:42:33,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773493404] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:42:33,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576237702] [2024-11-28 02:42:33,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:42:33,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:33,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:42:33,742 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:42:33,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 02:42:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:42:33,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:42:33,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:42:34,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1707 backedges. 573 proven. 147 refuted. 0 times theorem prover too weak. 987 trivial. 0 not checked. [2024-11-28 02:42:34,091 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:42:34,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1707 backedges. 133 proven. 147 refuted. 0 times theorem prover too weak. 1427 trivial. 0 not checked. [2024-11-28 02:42:34,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576237702] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:42:34,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:42:34,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 14 [2024-11-28 02:42:34,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471665522] [2024-11-28 02:42:34,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:42:34,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:42:34,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:42:34,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:42:34,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:42:34,453 INFO L87 Difference]: Start difference. First operand 565 states and 693 transitions. Second operand has 14 states, 14 states have (on average 12.5) internal successors, (175), 14 states have internal predecessors, (175), 12 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 12 states have call predecessors, (47), 12 states have call successors, (47) [2024-11-28 02:42:35,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:42:35,540 INFO L93 Difference]: Finished difference Result 1096 states and 1337 transitions. [2024-11-28 02:42:35,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 02:42:35,541 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.5) internal successors, (175), 14 states have internal predecessors, (175), 12 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 12 states have call predecessors, (47), 12 states have call successors, (47) Word has length 268 [2024-11-28 02:42:35,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:42:35,543 INFO L225 Difference]: With dead ends: 1096 [2024-11-28 02:42:35,543 INFO L226 Difference]: Without dead ends: 664 [2024-11-28 02:42:35,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 528 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2024-11-28 02:42:35,545 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 149 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:42:35,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 687 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:42:35,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2024-11-28 02:42:35,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 630. [2024-11-28 02:42:35,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 503 states have (on average 1.0596421471172963) internal successors, (533), 508 states have internal predecessors, (533), 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) [2024-11-28 02:42:35,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 771 transitions. [2024-11-28 02:42:35,720 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 771 transitions. Word has length 268 [2024-11-28 02:42:35,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:42:35,720 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 771 transitions. [2024-11-28 02:42:35,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.5) internal successors, (175), 14 states have internal predecessors, (175), 12 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 12 states have call predecessors, (47), 12 states have call successors, (47) [2024-11-28 02:42:35,720 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 771 transitions. [2024-11-28 02:42:35,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-11-28 02:42:35,722 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:42:35,722 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:42:35,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-28 02:42:35,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-28 02:42:35,927 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:42:35,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:35,927 INFO L85 PathProgramCache]: Analyzing trace with hash -416965863, now seen corresponding path program 2 times [2024-11-28 02:42:35,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:42:35,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631440517] [2024-11-28 02:42:35,927 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:42:35,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:42:35,955 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:42:35,955 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:42:36,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2282 backedges. 68 proven. 342 refuted. 0 times theorem prover too weak. 1872 trivial. 0 not checked. [2024-11-28 02:42:36,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:42:36,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631440517] [2024-11-28 02:42:36,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631440517] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:42:36,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114881440] [2024-11-28 02:42:36,324 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:42:36,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:36,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:42:36,327 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:42:36,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 02:42:36,478 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:42:36,478 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:42:36,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 02:42:36,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:42:36,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2282 backedges. 188 proven. 342 refuted. 0 times theorem prover too weak. 1752 trivial. 0 not checked. [2024-11-28 02:42:36,861 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:42:37,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2282 backedges. 68 proven. 342 refuted. 0 times theorem prover too weak. 1872 trivial. 0 not checked. [2024-11-28 02:42:37,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114881440] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:42:37,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:42:37,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 14 [2024-11-28 02:42:37,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655906617] [2024-11-28 02:42:37,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:42:37,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:42:37,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:42:37,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:42:37,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:42:37,280 INFO L87 Difference]: Start difference. First operand 630 states and 771 transitions. Second operand has 14 states, 14 states have (on average 12.428571428571429) internal successors, (174), 14 states have internal predecessors, (174), 12 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 12 states have call predecessors, (42), 12 states have call successors, (42) [2024-11-28 02:42:38,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:42:38,950 INFO L93 Difference]: Finished difference Result 1134 states and 1384 transitions. [2024-11-28 02:42:38,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 02:42:38,950 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.428571428571429) internal successors, (174), 14 states have internal predecessors, (174), 12 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 12 states have call predecessors, (42), 12 states have call successors, (42) Word has length 305 [2024-11-28 02:42:38,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:42:38,961 INFO L225 Difference]: With dead ends: 1134 [2024-11-28 02:42:38,961 INFO L226 Difference]: Without dead ends: 695 [2024-11-28 02:42:38,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 636 GetRequests, 601 SyntacticMatches, 9 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2024-11-28 02:42:38,963 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 211 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:42:38,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 1010 Invalid, 1768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 02:42:38,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2024-11-28 02:42:39,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 603. [2024-11-28 02:42:39,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 479 states have (on average 1.0563674321503131) internal successors, (506), 484 states have internal predecessors, (506), 116 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-28 02:42:39,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 738 transitions. [2024-11-28 02:42:39,170 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 738 transitions. Word has length 305 [2024-11-28 02:42:39,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:42:39,170 INFO L471 AbstractCegarLoop]: Abstraction has 603 states and 738 transitions. [2024-11-28 02:42:39,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.428571428571429) internal successors, (174), 14 states have internal predecessors, (174), 12 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 12 states have call predecessors, (42), 12 states have call successors, (42) [2024-11-28 02:42:39,170 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 738 transitions. [2024-11-28 02:42:39,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-28 02:42:39,172 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:42:39,173 INFO L218 NwaCegarLoop]: trace histogram [35, 35, 35, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:42:39,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-28 02:42:39,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-28 02:42:39,373 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:42:39,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:39,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1872431359, now seen corresponding path program 3 times [2024-11-28 02:42:39,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:42:39,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192871063] [2024-11-28 02:42:39,374 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:42:39,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:42:39,430 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-28 02:42:39,431 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:42:40,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2942 backedges. 73 proven. 480 refuted. 0 times theorem prover too weak. 2389 trivial. 0 not checked. [2024-11-28 02:42:40,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:42:40,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192871063] [2024-11-28 02:42:40,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192871063] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:42:40,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153810983] [2024-11-28 02:42:40,484 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:42:40,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:40,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:42:40,486 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:42:40,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 02:42:40,550 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 02:42:40,550 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:42:40,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 02:42:40,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:42:41,646 INFO L134 CoverageAnalysis]: Checked inductivity of 2942 backedges. 395 proven. 40 refuted. 0 times theorem prover too weak. 2507 trivial. 0 not checked. [2024-11-28 02:42:41,647 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:42:42,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153810983] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:42:42,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:42:42,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 26 [2024-11-28 02:42:42,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484777428] [2024-11-28 02:42:42,035 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:42:42,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 02:42:42,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:42:42,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 02:42:42,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2024-11-28 02:42:42,038 INFO L87 Difference]: Start difference. First operand 603 states and 738 transitions. Second operand has 26 states, 26 states have (on average 8.73076923076923) internal successors, (227), 24 states have internal predecessors, (227), 16 states have call successors, (53), 1 states have call predecessors, (53), 3 states have return successors, (54), 17 states have call predecessors, (54), 16 states have call successors, (54) [2024-11-28 02:42:44,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:42:44,652 INFO L93 Difference]: Finished difference Result 725 states and 885 transitions. [2024-11-28 02:42:44,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 02:42:44,653 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.73076923076923) internal successors, (227), 24 states have internal predecessors, (227), 16 states have call successors, (53), 1 states have call predecessors, (53), 3 states have return successors, (54), 17 states have call predecessors, (54), 16 states have call successors, (54) Word has length 342 [2024-11-28 02:42:44,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:42:44,655 INFO L225 Difference]: With dead ends: 725 [2024-11-28 02:42:44,655 INFO L226 Difference]: Without dead ends: 418 [2024-11-28 02:42:44,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=509, Invalid=1653, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 02:42:44,657 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 329 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:42:44,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 677 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 02:42:44,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-28 02:42:44,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2024-11-28 02:42:44,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 334 states have (on average 1.0239520958083832) internal successors, (342), 334 states have internal predecessors, (342), 81 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-28 02:42:44,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 504 transitions. [2024-11-28 02:42:44,765 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 504 transitions. Word has length 342 [2024-11-28 02:42:44,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:42:44,765 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 504 transitions. [2024-11-28 02:42:44,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.73076923076923) internal successors, (227), 24 states have internal predecessors, (227), 16 states have call successors, (53), 1 states have call predecessors, (53), 3 states have return successors, (54), 17 states have call predecessors, (54), 16 states have call successors, (54) [2024-11-28 02:42:44,765 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 504 transitions. [2024-11-28 02:42:44,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-11-28 02:42:44,768 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:42:44,768 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:42:44,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-28 02:42:44,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:44,969 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 02:42:44,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:42:44,970 INFO L85 PathProgramCache]: Analyzing trace with hash -2124102223, now seen corresponding path program 3 times [2024-11-28 02:42:44,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:42:44,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465512586] [2024-11-28 02:42:44,970 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:42:44,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:42:45,024 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-28 02:42:45,024 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:42:45,368 INFO L134 CoverageAnalysis]: Checked inductivity of 4261 backedges. 206 proven. 294 refuted. 0 times theorem prover too weak. 3761 trivial. 0 not checked. [2024-11-28 02:42:45,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:42:45,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465512586] [2024-11-28 02:42:45,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465512586] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:42:45,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172050672] [2024-11-28 02:42:45,369 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:42:45,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:45,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:42:45,371 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:42:45,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 02:42:45,466 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 02:42:45,466 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:42:45,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 02:42:45,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:42:47,189 INFO L134 CoverageAnalysis]: Checked inductivity of 4261 backedges. 399 proven. 43 refuted. 0 times theorem prover too weak. 3819 trivial. 0 not checked. [2024-11-28 02:42:47,190 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:42:47,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172050672] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:42:47,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:42:47,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12] total 18 [2024-11-28 02:42:47,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828360859] [2024-11-28 02:42:47,700 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:42:47,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 02:42:47,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:42:47,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 02:42:47,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=507, Unknown=0, NotChecked=0, Total=600 [2024-11-28 02:42:47,702 INFO L87 Difference]: Start difference. First operand 418 states and 504 transitions. Second operand has 19 states, 17 states have (on average 9.0) internal successors, (153), 18 states have internal predecessors, (153), 11 states have call successors, (36), 1 states have call predecessors, (36), 3 states have return successors, (37), 12 states have call predecessors, (37), 11 states have call successors, (37) [2024-11-28 02:42:51,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:42:51,030 INFO L93 Difference]: Finished difference Result 420 states and 506 transitions. [2024-11-28 02:42:51,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-28 02:42:51,031 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 9.0) internal successors, (153), 18 states have internal predecessors, (153), 11 states have call successors, (36), 1 states have call predecessors, (36), 3 states have return successors, (37), 12 states have call predecessors, (37), 11 states have call successors, (37) Word has length 405 [2024-11-28 02:42:51,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:42:51,032 INFO L225 Difference]: With dead ends: 420 [2024-11-28 02:42:51,032 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 02:42:51,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=849, Invalid=2457, Unknown=0, NotChecked=0, Total=3306 [2024-11-28 02:42:51,034 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 267 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:42:51,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 264 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 02:42:51,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 02:42:51,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 02:42:51,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:42:51,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 02:42:51,035 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 405 [2024-11-28 02:42:51,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:42:51,035 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:42:51,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 9.0) internal successors, (153), 18 states have internal predecessors, (153), 11 states have call successors, (36), 1 states have call predecessors, (36), 3 states have return successors, (37), 12 states have call predecessors, (37), 11 states have call successors, (37) [2024-11-28 02:42:51,036 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 02:42:51,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 02:42:51,039 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 30 remaining) [2024-11-28 02:42:51,039 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 30 remaining) [2024-11-28 02:42:51,040 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 30 remaining) [2024-11-28 02:42:51,040 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 30 remaining) [2024-11-28 02:42:51,040 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 30 remaining) [2024-11-28 02:42:51,040 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 30 remaining) [2024-11-28 02:42:51,040 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 30 remaining) [2024-11-28 02:42:51,040 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 30 remaining) [2024-11-28 02:42:51,040 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 30 remaining) [2024-11-28 02:42:51,040 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 30 remaining) [2024-11-28 02:42:51,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 30 remaining) [2024-11-28 02:42:51,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 30 remaining) [2024-11-28 02:42:51,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 30 remaining) [2024-11-28 02:42:51,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 30 remaining) [2024-11-28 02:42:51,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 30 remaining) [2024-11-28 02:42:51,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 30 remaining) [2024-11-28 02:42:51,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 30 remaining) [2024-11-28 02:42:51,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 30 remaining) [2024-11-28 02:42:51,042 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 30 remaining) [2024-11-28 02:42:51,042 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 30 remaining) [2024-11-28 02:42:51,042 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 30 remaining) [2024-11-28 02:42:51,042 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 30 remaining) [2024-11-28 02:42:51,042 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 30 remaining) [2024-11-28 02:42:51,042 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 30 remaining) [2024-11-28 02:42:51,042 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 30 remaining) [2024-11-28 02:42:51,042 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 30 remaining) [2024-11-28 02:42:51,043 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 30 remaining) [2024-11-28 02:42:51,043 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 30 remaining) [2024-11-28 02:42:51,043 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 30 remaining) [2024-11-28 02:42:51,043 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 30 remaining) [2024-11-28 02:42:51,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-28 02:42:51,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_219e0982-412d-459b-80ff-e70d74b45b68/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:42:51,248 INFO L422 BasicCegarLoop]: Path program histogram: [3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:42:51,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 02:43:51,656 WARN L286 SmtUtils]: Spent 57.90s on a formula simplification. DAG size of input: 312 DAG size of output: 476 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-28 02:44:04,913 WARN L286 SmtUtils]: Spent 13.26s on a formula simplification. DAG size of input: 296 DAG size of output: 372 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)