./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme --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 42d34b3801344b79b388ecea52b2e670196aa6b758fe24ea6ecf5c2b8bbf579b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:41:21,498 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:41:21,582 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 10:41:21,588 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:41:21,589 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:41:21,619 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:41:21,620 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:41:21,620 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:41:21,621 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:41:21,622 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:41:21,622 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:41:21,623 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:41:21,624 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:41:21,624 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:41:21,625 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:41:21,626 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:41:21,626 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:41:21,627 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:41:21,627 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:41:21,628 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:41:21,628 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:41:21,629 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:41:21,630 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:41:21,630 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:41:21,631 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 10:41:21,631 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:41:21,632 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:41:21,632 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:41:21,633 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:41:21,634 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:41:21,634 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:41:21,635 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:41:21,635 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:41:21,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:41:21,636 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:41:21,636 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:41:21,637 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:41:21,637 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:41:21,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:41:21,638 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:41:21,638 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:41:21,639 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:41:21,639 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:41:21,639 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:41:21,644 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42d34b3801344b79b388ecea52b2e670196aa6b758fe24ea6ecf5c2b8bbf579b [2023-11-26 10:41:21,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:41:21,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:41:21,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:41:21,945 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:41:21,946 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:41:21,947 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i [2023-11-26 10:41:25,000 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:41:25,397 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:41:25,397 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i [2023-11-26 10:41:25,470 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/data/6fd723630/b207451c296641969159fc7c225e4ce7/FLAG86669b6b9 [2023-11-26 10:41:25,493 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/data/6fd723630/b207451c296641969159fc7c225e4ce7 [2023-11-26 10:41:25,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:41:25,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:41:25,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:41:25,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:41:25,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:41:25,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:41:25" (1/1) ... [2023-11-26 10:41:25,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f00734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:25, skipping insertion in model container [2023-11-26 10:41:25,507 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:41:25" (1/1) ... [2023-11-26 10:41:25,577 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:41:26,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:41:26,139 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:41:26,270 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:41:26,319 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:41:26,326 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:41:26,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26 WrapperNode [2023-11-26 10:41:26,327 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:41:26,328 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:41:26,328 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:41:26,328 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:41:26,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,377 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,469 INFO L138 Inliner]: procedures = 177, calls = 350, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1500 [2023-11-26 10:41:26,470 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:41:26,471 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:41:26,471 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:41:26,471 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:41:26,490 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,509 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,686 INFO L175 MemorySlicer]: Split 309 memory accesses to 4 slices as follows [268, 2, 5, 34]. 87 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0, 0]. The 63 writes are split as follows [58, 0, 1, 4]. [2023-11-26 10:41:26,696 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,696 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,746 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,761 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,767 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,776 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,790 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:41:26,791 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:41:26,791 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:41:26,792 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:41:26,793 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:41:26,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:26,824 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:41:26,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:41:26,880 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-26 10:41:26,880 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-26 10:41:26,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 10:41:26,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 10:41:26,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 10:41:26,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 10:41:26,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 10:41:26,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 10:41:26,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 10:41:26,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 10:41:26,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 10:41:26,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 10:41:26,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-26 10:41:26,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-26 10:41:26,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-26 10:41:26,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-26 10:41:26,884 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-26 10:41:26,884 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-26 10:41:26,884 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-26 10:41:26,884 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-26 10:41:26,884 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2023-11-26 10:41:26,885 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2023-11-26 10:41:26,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 10:41:26,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:41:26,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 10:41:26,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 10:41:26,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 10:41:26,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 10:41:26,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:41:26,886 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-26 10:41:26,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 10:41:26,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 10:41:26,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 10:41:26,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 10:41:26,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:41:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:41:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 10:41:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 10:41:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 10:41:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:41:26,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:41:27,190 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:41:27,193 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:41:28,944 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:41:29,002 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:41:29,002 INFO L309 CfgBuilder]: Removed 71 assume(true) statements. [2023-11-26 10:41:29,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:29 BoogieIcfgContainer [2023-11-26 10:41:29,003 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:41:29,006 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:41:29,006 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:41:29,009 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:41:29,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:41:25" (1/3) ... [2023-11-26 10:41:29,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d55d9c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:41:29, skipping insertion in model container [2023-11-26 10:41:29,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (2/3) ... [2023-11-26 10:41:29,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d55d9c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:41:29, skipping insertion in model container [2023-11-26 10:41:29,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:29" (3/3) ... [2023-11-26 10:41:29,013 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test8-2.i [2023-11-26 10:41:29,032 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:41:29,032 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-26 10:41:29,096 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:41:29,103 INFO L357 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, mHoare=true, 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;@6ed3749, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:41:29,103 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-26 10:41:29,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 438 states, 403 states have (on average 1.7096774193548387) internal successors, (689), 428 states have internal predecessors, (689), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-26 10:41:29,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 10:41:29,117 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:29,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-26 10:41:29,119 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:29,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:29,124 INFO L85 PathProgramCache]: Analyzing trace with hash 959732270, now seen corresponding path program 1 times [2023-11-26 10:41:29,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:29,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119475350] [2023-11-26 10:41:29,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:29,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:29,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119475350] [2023-11-26 10:41:29,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-26 10:41:29,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938055934] [2023-11-26 10:41:29,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:29,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:29,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:29,342 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:29,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:41:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 10:41:29,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:29,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:29,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:29,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938055934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:29,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:29,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:29,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776771291] [2023-11-26 10:41:29,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:29,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:41:29,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:29,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:41:29,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:41:29,631 INFO L87 Difference]: Start difference. First operand has 438 states, 403 states have (on average 1.7096774193548387) internal successors, (689), 428 states have internal predecessors, (689), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-26 10:41:29,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:29,721 INFO L93 Difference]: Finished difference Result 873 states and 1481 transitions. [2023-11-26 10:41:29,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:41:29,723 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-26 10:41:29,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:29,738 INFO L225 Difference]: With dead ends: 873 [2023-11-26 10:41:29,738 INFO L226 Difference]: Without dead ends: 398 [2023-11-26 10:41:29,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:41:29,748 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:29,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 647 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:41:29,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-11-26 10:41:29,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2023-11-26 10:41:29,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 367 states have (on average 1.5286103542234333) internal successors, (561), 389 states have internal predecessors, (561), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-26 10:41:29,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 601 transitions. [2023-11-26 10:41:29,827 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 601 transitions. Word has length 6 [2023-11-26 10:41:29,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:29,827 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 601 transitions. [2023-11-26 10:41:29,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-26 10:41:29,828 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 601 transitions. [2023-11-26 10:41:29,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 10:41:29,828 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:29,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-26 10:41:29,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:30,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-26 10:41:30,035 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:30,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:30,036 INFO L85 PathProgramCache]: Analyzing trace with hash 959734192, now seen corresponding path program 1 times [2023-11-26 10:41:30,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:30,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294449680] [2023-11-26 10:41:30,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:30,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:30,062 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:41:30,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [863641933] [2023-11-26 10:41:30,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:30,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:30,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:30,064 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:30,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 10:41:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 10:41:30,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:30,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-26 10:41:30,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:30,405 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:30,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:30,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294449680] [2023-11-26 10:41:30,406 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:41:30,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863641933] [2023-11-26 10:41:30,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863641933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:30,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:30,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:30,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576681675] [2023-11-26 10:41:30,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:30,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:41:30,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:30,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:41:30,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:41:30,409 INFO L87 Difference]: Start difference. First operand 398 states and 601 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-26 10:41:30,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:30,655 INFO L93 Difference]: Finished difference Result 751 states and 1129 transitions. [2023-11-26 10:41:30,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:41:30,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-26 10:41:30,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:30,666 INFO L225 Difference]: With dead ends: 751 [2023-11-26 10:41:30,666 INFO L226 Difference]: Without dead ends: 749 [2023-11-26 10:41:30,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:41:30,670 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 511 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:30,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 1720 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:41:30,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2023-11-26 10:41:30,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 404. [2023-11-26 10:41:30,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 373 states have (on average 1.522788203753351) internal successors, (568), 395 states have internal predecessors, (568), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-26 10:41:30,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 608 transitions. [2023-11-26 10:41:30,734 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 608 transitions. Word has length 6 [2023-11-26 10:41:30,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:30,734 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 608 transitions. [2023-11-26 10:41:30,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-26 10:41:30,738 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 608 transitions. [2023-11-26 10:41:30,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-26 10:41:30,748 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:30,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:30,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:30,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:30,959 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:30,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:30,960 INFO L85 PathProgramCache]: Analyzing trace with hash -2055382953, now seen corresponding path program 1 times [2023-11-26 10:41:30,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:30,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482152215] [2023-11-26 10:41:30,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:30,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:31,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:31,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:31,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482152215] [2023-11-26 10:41:31,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482152215] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:31,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:31,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:41:31,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798531546] [2023-11-26 10:41:31,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:31,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:41:31,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:31,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:41:31,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:41:31,490 INFO L87 Difference]: Start difference. First operand 404 states and 608 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:31,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:31,649 INFO L93 Difference]: Finished difference Result 959 states and 1451 transitions. [2023-11-26 10:41:31,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:41:31,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-11-26 10:41:31,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:31,657 INFO L225 Difference]: With dead ends: 959 [2023-11-26 10:41:31,657 INFO L226 Difference]: Without dead ends: 748 [2023-11-26 10:41:31,662 INFO L412 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 [2023-11-26 10:41:31,665 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 512 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 1725 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:31,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 1725 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:41:31,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-11-26 10:41:31,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 404. [2023-11-26 10:41:31,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 373 states have (on average 1.520107238605898) internal successors, (567), 395 states have internal predecessors, (567), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-26 10:41:31,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 607 transitions. [2023-11-26 10:41:31,692 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 607 transitions. Word has length 71 [2023-11-26 10:41:31,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:31,693 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 607 transitions. [2023-11-26 10:41:31,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:31,694 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 607 transitions. [2023-11-26 10:41:31,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-26 10:41:31,702 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:31,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:31,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:41:31,703 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:31,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:31,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1700485340, now seen corresponding path program 1 times [2023-11-26 10:41:31,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:31,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330593589] [2023-11-26 10:41:31,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:31,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:31,800 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:41:31,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1208348715] [2023-11-26 10:41:31,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:31,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:31,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:31,802 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:31,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 10:41:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:32,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:41:32,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:32,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:32,143 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:32,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:32,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330593589] [2023-11-26 10:41:32,143 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:41:32,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208348715] [2023-11-26 10:41:32,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208348715] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:32,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:32,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:41:32,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542346496] [2023-11-26 10:41:32,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:32,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:32,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:32,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:32,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:32,146 INFO L87 Difference]: Start difference. First operand 404 states and 607 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:32,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:32,244 INFO L93 Difference]: Finished difference Result 822 states and 1238 transitions. [2023-11-26 10:41:32,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:32,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-11-26 10:41:32,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:32,248 INFO L225 Difference]: With dead ends: 822 [2023-11-26 10:41:32,248 INFO L226 Difference]: Without dead ends: 425 [2023-11-26 10:41:32,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:32,250 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 9 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:32,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1140 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:41:32,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2023-11-26 10:41:32,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 424. [2023-11-26 10:41:32,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 393 states have (on average 1.4936386768447838) internal successors, (587), 415 states have internal predecessors, (587), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-26 10:41:32,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 627 transitions. [2023-11-26 10:41:32,266 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 627 transitions. Word has length 82 [2023-11-26 10:41:32,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:32,266 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 627 transitions. [2023-11-26 10:41:32,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:32,267 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 627 transitions. [2023-11-26 10:41:32,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-26 10:41:32,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:32,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:32,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:32,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:32,475 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:32,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:32,476 INFO L85 PathProgramCache]: Analyzing trace with hash 894112736, now seen corresponding path program 1 times [2023-11-26 10:41:32,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:32,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745034496] [2023-11-26 10:41:32,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:32,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:32,524 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:41:32,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2044122427] [2023-11-26 10:41:32,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:32,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:32,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:32,526 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:32,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 10:41:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:32,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:41:32,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:32,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:32,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:32,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:32,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745034496] [2023-11-26 10:41:32,906 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:41:32,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044122427] [2023-11-26 10:41:32,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044122427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:32,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:32,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:41:32,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294560920] [2023-11-26 10:41:32,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:32,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:41:32,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:32,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:41:32,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:41:32,909 INFO L87 Difference]: Start difference. First operand 424 states and 627 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:33,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:33,022 INFO L93 Difference]: Finished difference Result 828 states and 1234 transitions. [2023-11-26 10:41:33,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:41:33,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-11-26 10:41:33,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:33,026 INFO L225 Difference]: With dead ends: 828 [2023-11-26 10:41:33,026 INFO L226 Difference]: Without dead ends: 411 [2023-11-26 10:41:33,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:41:33,028 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 165 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:33,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1558 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:41:33,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2023-11-26 10:41:33,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 410. [2023-11-26 10:41:33,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 379 states have (on average 1.4934036939313984) internal successors, (566), 401 states have internal predecessors, (566), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-26 10:41:33,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 606 transitions. [2023-11-26 10:41:33,044 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 606 transitions. Word has length 82 [2023-11-26 10:41:33,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:33,045 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 606 transitions. [2023-11-26 10:41:33,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:33,045 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 606 transitions. [2023-11-26 10:41:33,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-26 10:41:33,046 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:33,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:33,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-26 10:41:33,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:33,253 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:33,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:33,254 INFO L85 PathProgramCache]: Analyzing trace with hash -9991662, now seen corresponding path program 1 times [2023-11-26 10:41:33,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:33,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837433051] [2023-11-26 10:41:33,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:33,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:33,298 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:41:33,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1144641741] [2023-11-26 10:41:33,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:33,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:33,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:33,300 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:33,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 10:41:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:33,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 10:41:33,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:33,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:33,745 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:33,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:33,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837433051] [2023-11-26 10:41:33,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:41:33,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144641741] [2023-11-26 10:41:33,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144641741] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:33,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:33,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:33,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656050710] [2023-11-26 10:41:33,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:33,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:41:33,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:33,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:41:33,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:41:33,748 INFO L87 Difference]: Start difference. First operand 410 states and 606 transitions. Second operand has 4 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:33,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:33,854 INFO L93 Difference]: Finished difference Result 410 states and 606 transitions. [2023-11-26 10:41:33,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:41:33,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-11-26 10:41:33,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:33,858 INFO L225 Difference]: With dead ends: 410 [2023-11-26 10:41:33,858 INFO L226 Difference]: Without dead ends: 409 [2023-11-26 10:41:33,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:41:33,860 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 530 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:33,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 1096 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:41:33,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-11-26 10:41:33,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2023-11-26 10:41:33,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 379 states have (on average 1.4907651715039578) internal successors, (565), 400 states have internal predecessors, (565), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-26 10:41:33,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 605 transitions. [2023-11-26 10:41:33,884 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 605 transitions. Word has length 82 [2023-11-26 10:41:33,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:33,886 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 605 transitions. [2023-11-26 10:41:33,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:33,886 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 605 transitions. [2023-11-26 10:41:33,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-26 10:41:33,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:33,887 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:33,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:34,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-26 10:41:34,095 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:34,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:34,096 INFO L85 PathProgramCache]: Analyzing trace with hash -309741449, now seen corresponding path program 1 times [2023-11-26 10:41:34,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:34,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15422145] [2023-11-26 10:41:34,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:34,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:34,171 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:41:34,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [420440725] [2023-11-26 10:41:34,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:34,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:34,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:34,173 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:34,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 10:41:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:34,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 10:41:34,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:34,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:34,680 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:34,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:34,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15422145] [2023-11-26 10:41:34,681 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:41:34,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420440725] [2023-11-26 10:41:34,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420440725] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:34,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:34,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:34,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978593428] [2023-11-26 10:41:34,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:34,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:41:34,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:34,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:41:34,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:41:34,683 INFO L87 Difference]: Start difference. First operand 409 states and 605 transitions. Second operand has 4 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:34,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:34,798 INFO L93 Difference]: Finished difference Result 623 states and 930 transitions. [2023-11-26 10:41:34,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:41:34,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2023-11-26 10:41:34,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:34,803 INFO L225 Difference]: With dead ends: 623 [2023-11-26 10:41:34,803 INFO L226 Difference]: Without dead ends: 622 [2023-11-26 10:41:34,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:41:34,804 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 213 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:34,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 1728 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:41:34,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2023-11-26 10:41:34,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 591. [2023-11-26 10:41:34,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 556 states have (on average 1.474820143884892) internal successors, (820), 577 states have internal predecessors, (820), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (24), 9 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 10:41:34,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 868 transitions. [2023-11-26 10:41:34,832 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 868 transitions. Word has length 83 [2023-11-26 10:41:34,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:34,832 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 868 transitions. [2023-11-26 10:41:34,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:34,833 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 868 transitions. [2023-11-26 10:41:34,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-26 10:41:34,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:34,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:34,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:35,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:35,047 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:35,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:35,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1451537320, now seen corresponding path program 1 times [2023-11-26 10:41:35,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:35,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459940846] [2023-11-26 10:41:35,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:35,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:35,092 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:41:35,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1138936148] [2023-11-26 10:41:35,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:35,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:35,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:35,094 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:35,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 10:41:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:35,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 10:41:35,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:35,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:35,767 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:35,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:35,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459940846] [2023-11-26 10:41:35,768 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:41:35,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138936148] [2023-11-26 10:41:35,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138936148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:35,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:35,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:35,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280982096] [2023-11-26 10:41:35,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:35,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:35,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:35,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:35,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:35,771 INFO L87 Difference]: Start difference. First operand 591 states and 868 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 10:41:35,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:35,907 INFO L93 Difference]: Finished difference Result 1197 states and 1767 transitions. [2023-11-26 10:41:35,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:35,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 93 [2023-11-26 10:41:35,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:35,913 INFO L225 Difference]: With dead ends: 1197 [2023-11-26 10:41:35,914 INFO L226 Difference]: Without dead ends: 737 [2023-11-26 10:41:35,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:35,916 INFO L413 NwaCegarLoop]: 756 mSDtfsCounter, 343 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:35,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1315 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:41:35,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2023-11-26 10:41:35,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 734. [2023-11-26 10:41:35,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 698 states have (on average 1.488538681948424) internal successors, (1039), 719 states have internal predecessors, (1039), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (25), 10 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 10:41:35,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1089 transitions. [2023-11-26 10:41:35,952 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1089 transitions. Word has length 93 [2023-11-26 10:41:35,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:35,953 INFO L495 AbstractCegarLoop]: Abstraction has 734 states and 1089 transitions. [2023-11-26 10:41:35,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 10:41:35,954 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1089 transitions. [2023-11-26 10:41:35,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-26 10:41:35,956 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:35,956 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:35,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:36,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:36,163 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:36,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:36,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1174876875, now seen corresponding path program 1 times [2023-11-26 10:41:36,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:36,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698149013] [2023-11-26 10:41:36,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:36,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:36,220 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:41:36,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [497468365] [2023-11-26 10:41:36,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:36,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:36,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:36,222 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:36,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 10:41:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 10:41:36,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:36,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-26 10:41:36,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-26 10:41:36,923 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-26 10:41:36,923 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:36,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:36,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698149013] [2023-11-26 10:41:36,924 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:41:36,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497468365] [2023-11-26 10:41:36,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497468365] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:36,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:36,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:41:36,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887402539] [2023-11-26 10:41:36,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:36,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:41:36,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:36,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:41:36,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:41:36,926 INFO L87 Difference]: Start difference. First operand 734 states and 1089 transitions. Second operand has 5 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2023-11-26 10:41:41,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-26 10:41:45,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-26 10:41:45,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:45,270 INFO L93 Difference]: Finished difference Result 977 states and 1459 transitions. [2023-11-26 10:41:45,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:41:45,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 106 [2023-11-26 10:41:45,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:45,302 INFO L225 Difference]: With dead ends: 977 [2023-11-26 10:41:45,303 INFO L226 Difference]: Without dead ends: 976 [2023-11-26 10:41:45,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 97 SyntacticMatches, 5 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:41:45,304 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 485 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 1706 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:45,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 1706 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 127 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2023-11-26 10:41:45,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2023-11-26 10:41:45,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 965. [2023-11-26 10:41:45,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 911 states have (on average 1.495060373216246) internal successors, (1362), 948 states have internal predecessors, (1362), 42 states have call successors, (42), 7 states have call predecessors, (42), 6 states have return successors, (42), 11 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-26 10:41:45,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1446 transitions. [2023-11-26 10:41:45,355 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1446 transitions. Word has length 106 [2023-11-26 10:41:45,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:45,356 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1446 transitions. [2023-11-26 10:41:45,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2023-11-26 10:41:45,357 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1446 transitions. [2023-11-26 10:41:45,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-26 10:41:45,359 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:45,359 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:45,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:45,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:45,567 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:45,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:45,567 INFO L85 PathProgramCache]: Analyzing trace with hash -2061443858, now seen corresponding path program 1 times [2023-11-26 10:41:45,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:45,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347235592] [2023-11-26 10:41:45,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:45,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:45,622 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:41:45,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1297038269] [2023-11-26 10:41:45,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:45,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:45,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:45,625 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:45,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 10:41:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:46,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 10:41:46,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:46,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-26 10:41:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-26 10:41:46,388 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:46,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:46,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347235592] [2023-11-26 10:41:46,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:41:46,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297038269] [2023-11-26 10:41:46,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297038269] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:46,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:46,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:41:46,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022382009] [2023-11-26 10:41:46,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:46,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:41:46,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:46,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:41:46,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:41:46,391 INFO L87 Difference]: Start difference. First operand 965 states and 1446 transitions. Second operand has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 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) [2023-11-26 10:41:46,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:46,767 INFO L93 Difference]: Finished difference Result 976 states and 1458 transitions. [2023-11-26 10:41:46,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 10:41:46,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 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 107 [2023-11-26 10:41:46,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:46,774 INFO L225 Difference]: With dead ends: 976 [2023-11-26 10:41:46,774 INFO L226 Difference]: Without dead ends: 975 [2023-11-26 10:41:46,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 97 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:41:46,776 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 907 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:46,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [909 Valid, 1990 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 10:41:46,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2023-11-26 10:41:46,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 964. [2023-11-26 10:41:46,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 911 states have (on average 1.4939626783754116) internal successors, (1361), 947 states have internal predecessors, (1361), 42 states have call successors, (42), 7 states have call predecessors, (42), 6 states have return successors, (42), 11 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-26 10:41:46,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1445 transitions. [2023-11-26 10:41:46,844 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1445 transitions. Word has length 107 [2023-11-26 10:41:46,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:46,845 INFO L495 AbstractCegarLoop]: Abstraction has 964 states and 1445 transitions. [2023-11-26 10:41:46,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 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) [2023-11-26 10:41:46,846 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1445 transitions. [2023-11-26 10:41:46,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-26 10:41:46,850 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:46,850 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:46,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:47,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 10:41:47,058 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:47,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:47,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1190946266, now seen corresponding path program 1 times [2023-11-26 10:41:47,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:47,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787339363] [2023-11-26 10:41:47,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:47,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:47,113 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:41:47,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1253104249] [2023-11-26 10:41:47,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:47,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:47,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:47,115 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:47,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 10:41:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-26 10:41:47,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:47,781 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-26 10:41:47,781 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:47,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:47,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787339363] [2023-11-26 10:41:47,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:41:47,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253104249] [2023-11-26 10:41:47,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253104249] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:47,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:47,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 10:41:47,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474782745] [2023-11-26 10:41:47,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:47,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 10:41:47,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:47,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 10:41:47,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:41:47,785 INFO L87 Difference]: Start difference. First operand 964 states and 1445 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 10:41:48,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:48,639 INFO L93 Difference]: Finished difference Result 1943 states and 2904 transitions. [2023-11-26 10:41:48,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 10:41:48,640 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 112 [2023-11-26 10:41:48,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:48,647 INFO L225 Difference]: With dead ends: 1943 [2023-11-26 10:41:48,648 INFO L226 Difference]: Without dead ends: 1062 [2023-11-26 10:41:48,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:41:48,667 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 23 mSDsluCounter, 2888 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3459 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:48,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 3459 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 10:41:48,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2023-11-26 10:41:48,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1044. [2023-11-26 10:41:48,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 991 states have (on average 1.4702320887991926) internal successors, (1457), 1027 states have internal predecessors, (1457), 42 states have call successors, (42), 7 states have call predecessors, (42), 6 states have return successors, (42), 11 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-26 10:41:48,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1541 transitions. [2023-11-26 10:41:48,769 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1541 transitions. Word has length 112 [2023-11-26 10:41:48,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:48,769 INFO L495 AbstractCegarLoop]: Abstraction has 1044 states and 1541 transitions. [2023-11-26 10:41:48,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 10:41:48,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1541 transitions. [2023-11-26 10:41:48,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-26 10:41:48,772 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:48,772 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:48,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:48,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:48,973 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:48,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:48,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1203935930, now seen corresponding path program 1 times [2023-11-26 10:41:48,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:48,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961933878] [2023-11-26 10:41:48,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:48,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:49,052 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:41:49,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1591446711] [2023-11-26 10:41:49,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:49,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:49,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:49,055 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:49,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-26 10:41:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:49,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 10:41:49,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:50,103 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-26 10:41:50,103 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:50,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:50,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961933878] [2023-11-26 10:41:50,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:41:50,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591446711] [2023-11-26 10:41:50,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591446711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:50,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:50,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 10:41:50,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230558325] [2023-11-26 10:41:50,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:50,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:41:50,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:50,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:41:50,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:41:50,107 INFO L87 Difference]: Start difference. First operand 1044 states and 1541 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 10:41:50,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:50,845 INFO L93 Difference]: Finished difference Result 1989 states and 2951 transitions. [2023-11-26 10:41:50,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 10:41:50,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 113 [2023-11-26 10:41:50,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:50,852 INFO L225 Difference]: With dead ends: 1989 [2023-11-26 10:41:50,853 INFO L226 Difference]: Without dead ends: 1080 [2023-11-26 10:41:50,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-26 10:41:50,856 INFO L413 NwaCegarLoop]: 564 mSDtfsCounter, 47 mSDsluCounter, 2391 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 2955 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:50,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 2955 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 10:41:50,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2023-11-26 10:41:50,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1064. [2023-11-26 10:41:50,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 1011 states have (on average 1.4727992087042532) internal successors, (1489), 1047 states have internal predecessors, (1489), 42 states have call successors, (42), 7 states have call predecessors, (42), 6 states have return successors, (42), 11 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-26 10:41:50,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1573 transitions. [2023-11-26 10:41:50,905 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1573 transitions. Word has length 113 [2023-11-26 10:41:50,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:50,906 INFO L495 AbstractCegarLoop]: Abstraction has 1064 states and 1573 transitions. [2023-11-26 10:41:50,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 10:41:50,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1573 transitions. [2023-11-26 10:41:50,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-26 10:41:50,908 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:50,908 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:50,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:51,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-26 10:41:51,118 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:51,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:51,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1712731025, now seen corresponding path program 1 times [2023-11-26 10:41:51,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:51,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166794390] [2023-11-26 10:41:51,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:51,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:51,169 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:41:51,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [488392106] [2023-11-26 10:41:51,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:51,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:51,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:51,171 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:51,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-26 10:41:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:52,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-26 10:41:52,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:52,377 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 10:41:52,377 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:52,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:52,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166794390] [2023-11-26 10:41:52,378 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:41:52,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488392106] [2023-11-26 10:41:52,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488392106] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:52,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:52,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:41:52,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172270256] [2023-11-26 10:41:52,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:52,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:41:52,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:52,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:41:52,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:41:52,381 INFO L87 Difference]: Start difference. First operand 1064 states and 1573 transitions. Second operand has 4 states, 3 states have (on average 35.333333333333336) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 10:41:52,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:52,462 INFO L93 Difference]: Finished difference Result 1957 states and 2907 transitions. [2023-11-26 10:41:52,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:41:52,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 35.333333333333336) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 114 [2023-11-26 10:41:52,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:52,470 INFO L225 Difference]: With dead ends: 1957 [2023-11-26 10:41:52,470 INFO L226 Difference]: Without dead ends: 1068 [2023-11-26 10:41:52,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:41:52,473 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 1 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1751 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:52,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1751 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:41:52,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2023-11-26 10:41:52,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1068. [2023-11-26 10:41:52,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1013 states have (on average 1.4738400789733466) internal successors, (1493), 1051 states have internal predecessors, (1493), 42 states have call successors, (42), 7 states have call predecessors, (42), 8 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-26 10:41:52,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1579 transitions. [2023-11-26 10:41:52,531 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1579 transitions. Word has length 114 [2023-11-26 10:41:52,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:52,531 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1579 transitions. [2023-11-26 10:41:52,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 35.333333333333336) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 10:41:52,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1579 transitions. [2023-11-26 10:41:52,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-26 10:41:52,534 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:52,535 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:52,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:52,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-26 10:41:52,746 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:52,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:52,746 INFO L85 PathProgramCache]: Analyzing trace with hash -2083352615, now seen corresponding path program 1 times [2023-11-26 10:41:52,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:52,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213734446] [2023-11-26 10:41:52,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:52,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:52,814 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:41:52,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1312272834] [2023-11-26 10:41:52,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:52,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:52,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:52,823 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:52,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-26 10:41:53,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:53,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-26 10:41:53,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:53,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-26 10:41:53,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-26 10:41:53,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-11-26 10:41:53,948 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 10:41:53,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 23 [2023-11-26 10:41:54,143 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-26 10:41:54,144 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:54,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:54,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213734446] [2023-11-26 10:41:54,144 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:41:54,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312272834] [2023-11-26 10:41:54,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312272834] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:54,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:54,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-26 10:41:54,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779561051] [2023-11-26 10:41:54,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:54,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-26 10:41:54,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:54,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 10:41:54,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-26 10:41:54,147 INFO L87 Difference]: Start difference. First operand 1068 states and 1579 transitions. Second operand has 12 states, 12 states have (on average 8.75) internal successors, (105), 11 states have internal predecessors, (105), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 10:41:57,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:57,708 INFO L93 Difference]: Finished difference Result 2036 states and 3013 transitions. [2023-11-26 10:41:57,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 10:41:57,709 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.75) internal successors, (105), 11 states have internal predecessors, (105), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 116 [2023-11-26 10:41:57,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:57,717 INFO L225 Difference]: With dead ends: 2036 [2023-11-26 10:41:57,718 INFO L226 Difference]: Without dead ends: 1095 [2023-11-26 10:41:57,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-26 10:41:57,722 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 753 mSDsluCounter, 3973 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 4507 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:57,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 4507 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-26 10:41:57,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2023-11-26 10:41:57,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1075. [2023-11-26 10:41:57,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 1020 states have (on average 1.4705882352941178) internal successors, (1500), 1058 states have internal predecessors, (1500), 42 states have call successors, (42), 7 states have call predecessors, (42), 8 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-26 10:41:57,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1586 transitions. [2023-11-26 10:41:57,781 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1586 transitions. Word has length 116 [2023-11-26 10:41:57,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:57,781 INFO L495 AbstractCegarLoop]: Abstraction has 1075 states and 1586 transitions. [2023-11-26 10:41:57,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.75) internal successors, (105), 11 states have internal predecessors, (105), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 10:41:57,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1586 transitions. [2023-11-26 10:41:57,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-26 10:41:57,784 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:57,784 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:57,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:57,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-26 10:41:57,996 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:57,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:57,998 INFO L85 PathProgramCache]: Analyzing trace with hash -52080205, now seen corresponding path program 1 times [2023-11-26 10:41:57,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:57,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574267704] [2023-11-26 10:41:57,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:57,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:58,055 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:41:58,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [429423713] [2023-11-26 10:41:58,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:58,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:58,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:58,057 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:58,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-26 10:41:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:58,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 10:41:58,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:58,841 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-26 10:41:58,841 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:58,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:58,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574267704] [2023-11-26 10:41:58,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:41:58,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429423713] [2023-11-26 10:41:58,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429423713] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:58,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:58,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 10:41:58,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572347080] [2023-11-26 10:41:58,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:58,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:41:58,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:58,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:41:58,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:41:58,845 INFO L87 Difference]: Start difference. First operand 1075 states and 1586 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 10:41:59,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:59,448 INFO L93 Difference]: Finished difference Result 2018 states and 2994 transitions. [2023-11-26 10:41:59,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:41:59,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 116 [2023-11-26 10:41:59,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:59,456 INFO L225 Difference]: With dead ends: 2018 [2023-11-26 10:41:59,456 INFO L226 Difference]: Without dead ends: 1085 [2023-11-26 10:41:59,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:41:59,459 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 10 mSDsluCounter, 1884 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2464 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:59,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2464 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 10:41:59,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2023-11-26 10:41:59,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 1083. [2023-11-26 10:41:59,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1028 states have (on average 1.4688715953307394) internal successors, (1510), 1066 states have internal predecessors, (1510), 42 states have call successors, (42), 7 states have call predecessors, (42), 8 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-26 10:41:59,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1596 transitions. [2023-11-26 10:41:59,510 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1596 transitions. Word has length 116 [2023-11-26 10:41:59,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:59,511 INFO L495 AbstractCegarLoop]: Abstraction has 1083 states and 1596 transitions. [2023-11-26 10:41:59,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 10:41:59,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1596 transitions. [2023-11-26 10:41:59,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-26 10:41:59,513 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:59,513 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:59,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-26 10:41:59,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-26 10:41:59,723 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:59,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:59,723 INFO L85 PathProgramCache]: Analyzing trace with hash 188159541, now seen corresponding path program 1 times [2023-11-26 10:41:59,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:59,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309160424] [2023-11-26 10:41:59,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:59,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:59,775 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:41:59,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [87545345] [2023-11-26 10:41:59,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:59,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:59,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:59,777 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:59,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-26 10:42:01,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:01,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-26 10:42:01,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:01,076 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 10:42:01,077 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:01,184 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 10:42:01,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:01,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309160424] [2023-11-26 10:42:01,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:42:01,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87545345] [2023-11-26 10:42:01,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87545345] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:01,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 10:42:01,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-26 10:42:01,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114898046] [2023-11-26 10:42:01,186 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:01,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 10:42:01,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:01,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 10:42:01,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:42:01,188 INFO L87 Difference]: Start difference. First operand 1083 states and 1596 transitions. Second operand has 8 states, 6 states have (on average 20.333333333333332) internal successors, (122), 8 states have internal predecessors, (122), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 10:42:01,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:01,420 INFO L93 Difference]: Finished difference Result 1998 states and 2965 transitions. [2023-11-26 10:42:01,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 10:42:01,421 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 20.333333333333332) internal successors, (122), 8 states have internal predecessors, (122), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 116 [2023-11-26 10:42:01,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:01,428 INFO L225 Difference]: With dead ends: 1998 [2023-11-26 10:42:01,428 INFO L226 Difference]: Without dead ends: 1101 [2023-11-26 10:42:01,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:42:01,432 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 6 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2333 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:01,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2333 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:42:01,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2023-11-26 10:42:01,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 1099. [2023-11-26 10:42:01,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 1042 states have (on average 1.4740882917466411) internal successors, (1536), 1080 states have internal predecessors, (1536), 42 states have call successors, (42), 9 states have call predecessors, (42), 10 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-26 10:42:01,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1622 transitions. [2023-11-26 10:42:01,500 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1622 transitions. Word has length 116 [2023-11-26 10:42:01,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:01,500 INFO L495 AbstractCegarLoop]: Abstraction has 1099 states and 1622 transitions. [2023-11-26 10:42:01,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 20.333333333333332) internal successors, (122), 8 states have internal predecessors, (122), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 10:42:01,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1622 transitions. [2023-11-26 10:42:01,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-26 10:42:01,503 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:01,504 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:01,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:01,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-26 10:42:01,718 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:01,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:01,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1603001523, now seen corresponding path program 2 times [2023-11-26 10:42:01,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:01,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68349831] [2023-11-26 10:42:01,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:01,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:01,791 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:42:01,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [367170033] [2023-11-26 10:42:01,791 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 10:42:01,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:01,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:01,793 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:01,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-26 10:42:02,235 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 10:42:02,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:42:02,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 10:42:02,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:02,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-26 10:42:02,258 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-26 10:42:02,258 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:42:02,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:02,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68349831] [2023-11-26 10:42:02,259 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:42:02,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367170033] [2023-11-26 10:42:02,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367170033] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:02,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:02,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:42:02,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420240691] [2023-11-26 10:42:02,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:02,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:42:02,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:02,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:42:02,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:42:02,263 INFO L87 Difference]: Start difference. First operand 1099 states and 1622 transitions. Second operand has 3 states, 2 states have (on average 51.0) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 10:42:02,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:02,313 INFO L93 Difference]: Finished difference Result 1099 states and 1622 transitions. [2023-11-26 10:42:02,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:42:02,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 51.0) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 120 [2023-11-26 10:42:02,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:02,321 INFO L225 Difference]: With dead ends: 1099 [2023-11-26 10:42:02,321 INFO L226 Difference]: Without dead ends: 1098 [2023-11-26 10:42:02,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:42:02,323 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 2 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:02,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1165 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:02,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2023-11-26 10:42:02,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1098. [2023-11-26 10:42:02,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 1042 states have (on average 1.4731285988483684) internal successors, (1535), 1079 states have internal predecessors, (1535), 42 states have call successors, (42), 9 states have call predecessors, (42), 10 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-26 10:42:02,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1621 transitions. [2023-11-26 10:42:02,381 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1621 transitions. Word has length 120 [2023-11-26 10:42:02,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:02,382 INFO L495 AbstractCegarLoop]: Abstraction has 1098 states and 1621 transitions. [2023-11-26 10:42:02,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 51.0) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 10:42:02,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1621 transitions. [2023-11-26 10:42:02,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-26 10:42:02,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:02,385 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:02,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:02,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-26 10:42:02,597 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:02,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:02,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1846560528, now seen corresponding path program 1 times [2023-11-26 10:42:02,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:02,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992978325] [2023-11-26 10:42:02,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:02,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:02,663 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:42:02,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1699041879] [2023-11-26 10:42:02,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:02,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:02,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:02,666 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:02,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-26 10:42:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:03,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-26 10:42:03,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:03,413 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-26 10:42:03,413 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:03,762 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 10:42:03,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:03,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992978325] [2023-11-26 10:42:03,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:42:03,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699041879] [2023-11-26 10:42:03,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699041879] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:03,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 10:42:03,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2023-11-26 10:42:03,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401153759] [2023-11-26 10:42:03,764 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:03,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-26 10:42:03,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:03,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-26 10:42:03,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-11-26 10:42:03,766 INFO L87 Difference]: Start difference. First operand 1098 states and 1621 transitions. Second operand has 15 states, 13 states have (on average 10.076923076923077) internal successors, (131), 15 states have internal predecessors, (131), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 10:42:04,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:04,913 INFO L93 Difference]: Finished difference Result 1995 states and 2970 transitions. [2023-11-26 10:42:04,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-26 10:42:04,914 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 10.076923076923077) internal successors, (131), 15 states have internal predecessors, (131), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 121 [2023-11-26 10:42:04,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:04,921 INFO L225 Difference]: With dead ends: 1995 [2023-11-26 10:42:04,921 INFO L226 Difference]: Without dead ends: 960 [2023-11-26 10:42:04,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=234, Invalid=468, Unknown=0, NotChecked=0, Total=702 [2023-11-26 10:42:04,925 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 104 mSDsluCounter, 3915 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 4418 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:04,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 4418 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 10:42:04,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2023-11-26 10:42:04,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 956. [2023-11-26 10:42:04,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 956 states, 900 states have (on average 1.4566666666666668) internal successors, (1311), 937 states have internal predecessors, (1311), 42 states have call successors, (42), 9 states have call predecessors, (42), 10 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-26 10:42:04,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1397 transitions. [2023-11-26 10:42:04,978 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1397 transitions. Word has length 121 [2023-11-26 10:42:04,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:04,978 INFO L495 AbstractCegarLoop]: Abstraction has 956 states and 1397 transitions. [2023-11-26 10:42:04,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 10.076923076923077) internal successors, (131), 15 states have internal predecessors, (131), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 10:42:04,979 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1397 transitions. [2023-11-26 10:42:04,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-26 10:42:04,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:04,981 INFO L195 NwaCegarLoop]: trace histogram [12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:04,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:05,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-26 10:42:05,191 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:05,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:05,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1525464496, now seen corresponding path program 2 times [2023-11-26 10:42:05,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:05,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272621624] [2023-11-26 10:42:05,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:05,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:05,257 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:42:05,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [711077693] [2023-11-26 10:42:05,258 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 10:42:05,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:05,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:05,260 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:05,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-26 10:42:05,911 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 10:42:05,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:42:05,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-26 10:42:05,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:05,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-26 10:42:06,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-26 10:42:06,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-26 10:42:06,397 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-11-26 10:42:06,397 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:06,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:06,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272621624] [2023-11-26 10:42:06,687 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:42:06,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711077693] [2023-11-26 10:42:06,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711077693] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:06,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:42:06,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-26 10:42:06,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981141153] [2023-11-26 10:42:06,688 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:06,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 10:42:06,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:06,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 10:42:06,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2023-11-26 10:42:06,690 INFO L87 Difference]: Start difference. First operand 956 states and 1397 transitions. Second operand has 9 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 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) [2023-11-26 10:42:11,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-26 10:42:15,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-26 10:42:15,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:15,344 INFO L93 Difference]: Finished difference Result 970 states and 1412 transitions. [2023-11-26 10:42:15,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 10:42:15,345 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 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 127 [2023-11-26 10:42:15,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:15,352 INFO L225 Difference]: With dead ends: 970 [2023-11-26 10:42:15,352 INFO L226 Difference]: Without dead ends: 969 [2023-11-26 10:42:15,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 118 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2023-11-26 10:42:15,354 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 627 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 3802 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:15,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 3802 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 328 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time] [2023-11-26 10:42:15,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2023-11-26 10:42:15,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 955. [2023-11-26 10:42:15,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 900 states have (on average 1.4555555555555555) internal successors, (1310), 936 states have internal predecessors, (1310), 42 states have call successors, (42), 9 states have call predecessors, (42), 10 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-26 10:42:15,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1396 transitions. [2023-11-26 10:42:15,417 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1396 transitions. Word has length 127 [2023-11-26 10:42:15,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:15,418 INFO L495 AbstractCegarLoop]: Abstraction has 955 states and 1396 transitions. [2023-11-26 10:42:15,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 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) [2023-11-26 10:42:15,419 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1396 transitions. [2023-11-26 10:42:15,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-26 10:42:15,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:15,423 INFO L195 NwaCegarLoop]: trace histogram [12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:15,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:15,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:15,637 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:15,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:15,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1095141745, now seen corresponding path program 1 times [2023-11-26 10:42:15,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:15,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156650158] [2023-11-26 10:42:15,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:15,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:15,739 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:42:15,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [79810634] [2023-11-26 10:42:15,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:15,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:15,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:15,741 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:15,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-26 10:42:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:16,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:42:16,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:16,524 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-11-26 10:42:16,524 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:42:16,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:16,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156650158] [2023-11-26 10:42:16,525 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:42:16,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79810634] [2023-11-26 10:42:16,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79810634] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:16,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:16,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:42:16,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031242551] [2023-11-26 10:42:16,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:16,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:42:16,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:16,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:42:16,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:42:16,528 INFO L87 Difference]: Start difference. First operand 955 states and 1396 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 10:42:16,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:16,589 INFO L93 Difference]: Finished difference Result 1356 states and 2024 transitions. [2023-11-26 10:42:16,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:42:16,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 192 [2023-11-26 10:42:16,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:16,597 INFO L225 Difference]: With dead ends: 1356 [2023-11-26 10:42:16,597 INFO L226 Difference]: Without dead ends: 959 [2023-11-26 10:42:16,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:42:16,600 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 0 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:16,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1028 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:42:16,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2023-11-26 10:42:16,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 959. [2023-11-26 10:42:16,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 904 states have (on average 1.4535398230088497) internal successors, (1314), 940 states have internal predecessors, (1314), 42 states have call successors, (42), 9 states have call predecessors, (42), 10 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-26 10:42:16,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1400 transitions. [2023-11-26 10:42:16,671 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1400 transitions. Word has length 192 [2023-11-26 10:42:16,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:16,673 INFO L495 AbstractCegarLoop]: Abstraction has 959 states and 1400 transitions. [2023-11-26 10:42:16,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 10:42:16,674 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1400 transitions. [2023-11-26 10:42:16,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-26 10:42:16,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:16,678 INFO L195 NwaCegarLoop]: trace histogram [12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:16,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:16,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:16,888 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:16,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:16,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1775200115, now seen corresponding path program 1 times [2023-11-26 10:42:16,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:16,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199815658] [2023-11-26 10:42:16,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:16,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:16,966 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:42:16,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [870814654] [2023-11-26 10:42:16,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:16,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:16,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:16,969 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:16,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-26 10:42:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:17,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:42:17,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:17,733 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-11-26 10:42:17,733 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:42:17,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:17,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199815658] [2023-11-26 10:42:17,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:42:17,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870814654] [2023-11-26 10:42:17,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870814654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:17,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:17,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:42:17,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928993032] [2023-11-26 10:42:17,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:17,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:42:17,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:17,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:42:17,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:42:17,737 INFO L87 Difference]: Start difference. First operand 959 states and 1400 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 10:42:17,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:17,887 INFO L93 Difference]: Finished difference Result 1563 states and 2323 transitions. [2023-11-26 10:42:17,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:42:17,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 192 [2023-11-26 10:42:17,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:42:17,895 INFO L225 Difference]: With dead ends: 1563 [2023-11-26 10:42:17,896 INFO L226 Difference]: Without dead ends: 1022 [2023-11-26 10:42:17,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:42:17,899 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 9 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:42:17,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 980 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:42:17,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2023-11-26 10:42:17,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 1019. [2023-11-26 10:42:17,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 964 states have (on average 1.4253112033195021) internal successors, (1374), 1000 states have internal predecessors, (1374), 42 states have call successors, (42), 9 states have call predecessors, (42), 10 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-26 10:42:17,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1460 transitions. [2023-11-26 10:42:17,956 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1460 transitions. Word has length 192 [2023-11-26 10:42:17,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:42:17,956 INFO L495 AbstractCegarLoop]: Abstraction has 1019 states and 1460 transitions. [2023-11-26 10:42:17,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 10:42:17,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1460 transitions. [2023-11-26 10:42:17,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-26 10:42:17,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:17,961 INFO L195 NwaCegarLoop]: trace histogram [12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:17,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:18,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-26 10:42:18,170 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:42:18,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:18,171 INFO L85 PathProgramCache]: Analyzing trace with hash 2075866507, now seen corresponding path program 1 times [2023-11-26 10:42:18,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:18,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009641915] [2023-11-26 10:42:18,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:18,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:18,238 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:42:18,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [453542404] [2023-11-26 10:42:18,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:18,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:18,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:18,240 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:18,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3412ab-4680-4864-9274-484feb0d7592/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process