./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/printf-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b 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_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/printf-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash e1439ef84a1af17ccf44ca8c0d6ca169b34f09692271293b069ca646aa923532 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:58:03,323 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:58:03,395 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-06 22:58:03,401 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:58:03,402 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:58:03,429 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:58:03,430 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:58:03,430 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:58:03,431 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:58:03,432 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:58:03,433 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:58:03,434 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:58:03,434 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:58:03,435 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:58:03,435 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:58:03,436 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:58:03,437 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:58:03,437 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:58:03,438 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:58:03,438 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:58:03,439 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:58:03,440 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:58:03,440 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:58:03,441 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:58:03,441 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:58:03,442 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:58:03,442 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:58:03,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:58:03,444 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:58:03,444 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:58:03,445 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:58:03,445 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:58:03,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:58:03,446 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:58:03,446 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:58:03,447 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:58:03,447 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:58:03,447 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:58:03,448 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_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1439ef84a1af17ccf44ca8c0d6ca169b34f09692271293b069ca646aa923532 [2023-11-06 22:58:03,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:58:03,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:58:03,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:58:03,791 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:58:03,792 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:58:03,794 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/busybox-1.22.0/printf-1.i [2023-11-06 22:58:07,001 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:58:07,485 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:58:07,486 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/sv-benchmarks/c/busybox-1.22.0/printf-1.i [2023-11-06 22:58:07,522 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/data/021a39f65/99ddad3ce4ea426489c52d160c50e5b7/FLAG4ffe3e18a [2023-11-06 22:58:07,542 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/data/021a39f65/99ddad3ce4ea426489c52d160c50e5b7 [2023-11-06 22:58:07,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:58:07,551 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:58:07,555 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:58:07,555 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:58:07,561 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:58:07,564 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:58:07" (1/1) ... [2023-11-06 22:58:07,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70606ca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:07, skipping insertion in model container [2023-11-06 22:58:07,566 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:58:07" (1/1) ... [2023-11-06 22:58:07,676 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:58:09,578 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:58:09,603 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:58:09,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:58:10,143 WARN L672 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:10,144 WARN L672 CHandler]: The function strtoull is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:10,144 WARN L672 CHandler]: The function strtol is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:10,144 WARN L672 CHandler]: The function strstr is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:10,144 WARN L672 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:10,145 WARN L672 CHandler]: The function strtoll is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:10,145 WARN L672 CHandler]: The function longjmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:10,145 WARN L672 CHandler]: The function convert is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:10,153 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:58:10,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:10 WrapperNode [2023-11-06 22:58:10,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:58:10,155 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:58:10,155 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:58:10,156 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:58:10,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:10" (1/1) ... [2023-11-06 22:58:10,252 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:10" (1/1) ... [2023-11-06 22:58:10,380 INFO L138 Inliner]: procedures = 648, calls = 521, calls flagged for inlining = 31, calls inlined = 29, statements flattened = 1578 [2023-11-06 22:58:10,380 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:58:10,382 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:58:10,382 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:58:10,382 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:58:10,392 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:10" (1/1) ... [2023-11-06 22:58:10,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:10" (1/1) ... [2023-11-06 22:58:10,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:10" (1/1) ... [2023-11-06 22:58:10,415 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:10" (1/1) ... [2023-11-06 22:58:10,493 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:10" (1/1) ... [2023-11-06 22:58:10,526 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:10" (1/1) ... [2023-11-06 22:58:10,542 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:10" (1/1) ... [2023-11-06 22:58:10,572 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:10" (1/1) ... [2023-11-06 22:58:10,590 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:58:10,591 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:58:10,592 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:58:10,592 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:58:10,593 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:10" (1/1) ... [2023-11-06 22:58:10,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:58:10,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:10,625 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:58:10,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:58:10,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-06 22:58:10,667 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-11-06 22:58:10,667 INFO L130 BoogieDeclarations]: Found specification of procedure bb_putchar [2023-11-06 22:58:10,668 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_putchar [2023-11-06 22:58:10,668 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2023-11-06 22:58:10,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:58:10,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2023-11-06 22:58:10,668 INFO L130 BoogieDeclarations]: Found specification of procedure ret_ERANGE [2023-11-06 22:58:10,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ret_ERANGE [2023-11-06 22:58:10,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-06 22:58:10,671 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-06 22:58:10,671 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-06 22:58:10,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-06 22:58:10,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:58:10,671 INFO L130 BoogieDeclarations]: Found specification of procedure get_width_prec [2023-11-06 22:58:10,672 INFO L138 BoogieDeclarations]: Found implementation of procedure get_width_prec [2023-11-06 22:58:10,672 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-11-06 22:58:10,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-06 22:58:10,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:58:10,673 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-06 22:58:10,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:58:10,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:58:10,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:58:10,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:58:10,673 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-06 22:58:10,674 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-06 22:58:10,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-06 22:58:10,675 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-06 22:58:10,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-06 22:58:10,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 22:58:10,676 INFO L130 BoogieDeclarations]: Found specification of procedure handle_errors [2023-11-06 22:58:10,676 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_errors [2023-11-06 22:58:10,676 INFO L130 BoogieDeclarations]: Found specification of procedure bb_process_escape_sequence [2023-11-06 22:58:10,676 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_process_escape_sequence [2023-11-06 22:58:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:58:10,677 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:58:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure print_direc [2023-11-06 22:58:10,677 INFO L138 BoogieDeclarations]: Found implementation of procedure print_direc [2023-11-06 22:58:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:58:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:58:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:58:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure bb_ascii_isalnum [2023-11-06 22:58:10,678 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_ascii_isalnum [2023-11-06 22:58:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-11-06 22:58:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:58:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2023-11-06 22:58:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure bb_strtoll [2023-11-06 22:58:10,679 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_strtoll [2023-11-06 22:58:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure multiconvert [2023-11-06 22:58:10,679 INFO L138 BoogieDeclarations]: Found implementation of procedure multiconvert [2023-11-06 22:58:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2023-11-06 22:58:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:58:10,680 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg [2023-11-06 22:58:10,680 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg [2023-11-06 22:58:11,313 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:58:11,316 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:58:13,022 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:58:13,034 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:58:13,034 INFO L302 CfgBuilder]: Removed 18 assume(true) statements. [2023-11-06 22:58:13,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:58:13 BoogieIcfgContainer [2023-11-06 22:58:13,038 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:58:13,040 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:58:13,040 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:58:13,043 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:58:13,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:58:07" (1/3) ... [2023-11-06 22:58:13,044 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d59af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:58:13, skipping insertion in model container [2023-11-06 22:58:13,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:10" (2/3) ... [2023-11-06 22:58:13,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d59af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:58:13, skipping insertion in model container [2023-11-06 22:58:13,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:58:13" (3/3) ... [2023-11-06 22:58:13,046 INFO L112 eAbstractionObserver]: Analyzing ICFG printf-1.i [2023-11-06 22:58:13,065 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:58:13,066 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 52 error locations. [2023-11-06 22:58:13,145 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:58:13,151 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=LoopsAndPotentialCycles, 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;@4045e4cb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:58:13,151 INFO L358 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2023-11-06 22:58:13,158 INFO L276 IsEmpty]: Start isEmpty. Operand has 505 states, 385 states have (on average 1.6207792207792209) internal successors, (624), 452 states have internal predecessors, (624), 53 states have call successors, (53), 14 states have call predecessors, (53), 14 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-11-06 22:58:13,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-06 22:58:13,166 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:13,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-06 22:58:13,167 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:13,173 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:13,173 INFO L85 PathProgramCache]: Analyzing trace with hash 29431749, now seen corresponding path program 1 times [2023-11-06 22:58:13,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:13,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031754349] [2023-11-06 22:58:13,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:13,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:13,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:58:13,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:13,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031754349] [2023-11-06 22:58:13,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031754349] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:13,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:13,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:58:13,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735619590] [2023-11-06 22:58:13,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:13,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:58:13,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:13,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:58:13,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:13,851 INFO L87 Difference]: Start difference. First operand has 505 states, 385 states have (on average 1.6207792207792209) internal successors, (624), 452 states have internal predecessors, (624), 53 states have call successors, (53), 14 states have call predecessors, (53), 14 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:14,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:14,019 INFO L93 Difference]: Finished difference Result 995 states and 1487 transitions. [2023-11-06 22:58:14,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:58:14,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-06 22:58:14,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:14,058 INFO L225 Difference]: With dead ends: 995 [2023-11-06 22:58:14,058 INFO L226 Difference]: Without dead ends: 475 [2023-11-06 22:58:14,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:14,074 INFO L413 NwaCegarLoop]: 667 mSDtfsCounter, 1 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:14,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1328 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:58:14,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2023-11-06 22:58:14,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 475. [2023-11-06 22:58:14,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 381 states have (on average 1.4776902887139107) internal successors, (563), 424 states have internal predecessors, (563), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:58:14,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 640 transitions. [2023-11-06 22:58:14,215 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 640 transitions. Word has length 4 [2023-11-06 22:58:14,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:14,215 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 640 transitions. [2023-11-06 22:58:14,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:14,216 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 640 transitions. [2023-11-06 22:58:14,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 22:58:14,216 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:14,216 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-06 22:58:14,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:58:14,217 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:14,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:14,217 INFO L85 PathProgramCache]: Analyzing trace with hash 628870121, now seen corresponding path program 1 times [2023-11-06 22:58:14,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:14,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684807457] [2023-11-06 22:58:14,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:14,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:14,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:58:14,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:14,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684807457] [2023-11-06 22:58:14,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684807457] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:58:14,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349323675] [2023-11-06 22:58:14,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:14,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:14,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:14,463 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:58:14,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:58:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:14,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:58:14,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:58:14,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:58:14,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:58:14,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349323675] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:14,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:58:14,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-06 22:58:14,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461271292] [2023-11-06 22:58:14,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:14,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:58:14,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:14,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:58:14,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:58:14,898 INFO L87 Difference]: Start difference. First operand 475 states and 640 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-06 22:58:14,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:14,987 INFO L93 Difference]: Finished difference Result 475 states and 640 transitions. [2023-11-06 22:58:14,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:58:14,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2023-11-06 22:58:14,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:14,997 INFO L225 Difference]: With dead ends: 475 [2023-11-06 22:58:14,997 INFO L226 Difference]: Without dead ends: 474 [2023-11-06 22:58:14,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:58:15,000 INFO L413 NwaCegarLoop]: 631 mSDtfsCounter, 5 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1260 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 [2023-11-06 22:58:15,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1260 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:58:15,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2023-11-06 22:58:15,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2023-11-06 22:58:15,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 381 states have (on average 1.4750656167979002) internal successors, (562), 423 states have internal predecessors, (562), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:58:15,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 639 transitions. [2023-11-06 22:58:15,061 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 639 transitions. Word has length 7 [2023-11-06 22:58:15,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:15,061 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 639 transitions. [2023-11-06 22:58:15,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-06 22:58:15,062 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 639 transitions. [2023-11-06 22:58:15,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 22:58:15,062 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:15,063 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-11-06 22:58:15,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 22:58:15,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:15,272 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:15,273 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:15,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1979861758, now seen corresponding path program 1 times [2023-11-06 22:58:15,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:15,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527291117] [2023-11-06 22:58:15,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:15,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:15,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:58:15,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:15,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527291117] [2023-11-06 22:58:15,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527291117] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:15,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:15,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:58:15,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382287303] [2023-11-06 22:58:15,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:15,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:58:15,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:15,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:58:15,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:15,426 INFO L87 Difference]: Start difference. First operand 474 states and 639 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-06 22:58:15,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:15,466 INFO L93 Difference]: Finished difference Result 474 states and 639 transitions. [2023-11-06 22:58:15,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:58:15,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-06 22:58:15,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:15,476 INFO L225 Difference]: With dead ends: 474 [2023-11-06 22:58:15,476 INFO L226 Difference]: Without dead ends: 473 [2023-11-06 22:58:15,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:15,487 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 0 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:15,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1261 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:58:15,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2023-11-06 22:58:15,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 471. [2023-11-06 22:58:15,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 379 states have (on average 1.474934036939314) internal successors, (559), 420 states have internal predecessors, (559), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:58:15,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 636 transitions. [2023-11-06 22:58:15,513 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 636 transitions. Word has length 8 [2023-11-06 22:58:15,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:15,513 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 636 transitions. [2023-11-06 22:58:15,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-06 22:58:15,514 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 636 transitions. [2023-11-06 22:58:15,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 22:58:15,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:15,515 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:15,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:58:15,515 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:15,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:15,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1016897795, now seen corresponding path program 1 times [2023-11-06 22:58:15,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:15,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386210374] [2023-11-06 22:58:15,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:15,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:15,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:58:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:15,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:58:15,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:15,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386210374] [2023-11-06 22:58:15,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386210374] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:58:15,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078030725] [2023-11-06 22:58:15,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:15,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:15,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:15,778 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:58:15,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:58:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:16,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:58:16,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:58:16,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:58:16,093 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:58:16,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078030725] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:16,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:58:16,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-06 22:58:16,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957299355] [2023-11-06 22:58:16,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:16,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:58:16,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:16,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:58:16,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:58:16,096 INFO L87 Difference]: Start difference. First operand 471 states and 636 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:16,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:16,148 INFO L93 Difference]: Finished difference Result 471 states and 636 transitions. [2023-11-06 22:58:16,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:58:16,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-11-06 22:58:16,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:16,153 INFO L225 Difference]: With dead ends: 471 [2023-11-06 22:58:16,154 INFO L226 Difference]: Without dead ends: 469 [2023-11-06 22:58:16,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:58:16,156 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 162 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:16,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 1080 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:58:16,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-11-06 22:58:16,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2023-11-06 22:58:16,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 379 states have (on average 1.4696569920844327) internal successors, (557), 418 states have internal predecessors, (557), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:58:16,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 634 transitions. [2023-11-06 22:58:16,187 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 634 transitions. Word has length 13 [2023-11-06 22:58:16,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:16,193 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 634 transitions. [2023-11-06 22:58:16,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:16,194 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 634 transitions. [2023-11-06 22:58:16,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 22:58:16,194 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:16,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:16,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:58:16,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:16,402 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:16,402 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:16,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1459061553, now seen corresponding path program 1 times [2023-11-06 22:58:16,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:16,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143007090] [2023-11-06 22:58:16,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:16,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:16,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:58:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:16,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:58:16,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:16,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143007090] [2023-11-06 22:58:16,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143007090] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:58:16,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443546803] [2023-11-06 22:58:16,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:16,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:16,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:16,580 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:58:16,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:58:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:16,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:58:16,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:58:16,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:58:16,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:58:16,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:58:16,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443546803] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:58:16,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:58:16,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-06 22:58:16,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937113330] [2023-11-06 22:58:16,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:58:16,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:58:16,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:16,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:58:16,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:58:16,936 INFO L87 Difference]: Start difference. First operand 469 states and 634 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:58:17,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:17,015 INFO L93 Difference]: Finished difference Result 941 states and 1273 transitions. [2023-11-06 22:58:17,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:58:17,016 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-06 22:58:17,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:17,020 INFO L225 Difference]: With dead ends: 941 [2023-11-06 22:58:17,020 INFO L226 Difference]: Without dead ends: 478 [2023-11-06 22:58:17,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:58:17,023 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 4 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2511 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:17,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2511 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:58:17,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2023-11-06 22:58:17,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2023-11-06 22:58:17,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 388 states have (on average 1.458762886597938) internal successors, (566), 427 states have internal predecessors, (566), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:58:17,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 643 transitions. [2023-11-06 22:58:17,048 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 643 transitions. Word has length 14 [2023-11-06 22:58:17,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:17,048 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 643 transitions. [2023-11-06 22:58:17,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:58:17,048 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 643 transitions. [2023-11-06 22:58:17,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-06 22:58:17,049 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:17,049 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:17,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:58:17,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:17,257 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:17,257 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:17,257 INFO L85 PathProgramCache]: Analyzing trace with hash 2134535381, now seen corresponding path program 2 times [2023-11-06 22:58:17,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:17,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925389447] [2023-11-06 22:58:17,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:17,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:17,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:58:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:17,561 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:58:17,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:17,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925389447] [2023-11-06 22:58:17,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925389447] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:58:17,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909069469] [2023-11-06 22:58:17,562 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:58:17,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:17,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:17,565 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:58:17,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:58:17,893 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:58:17,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:58:17,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:58:17,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:58:17,964 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 22:58:17,964 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:58:17,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909069469] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:17,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:58:17,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-06 22:58:17,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094314719] [2023-11-06 22:58:17,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:17,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:58:17,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:17,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:58:17,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:58:17,968 INFO L87 Difference]: Start difference. First operand 478 states and 643 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:18,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:18,091 INFO L93 Difference]: Finished difference Result 478 states and 643 transitions. [2023-11-06 22:58:18,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:58:18,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-11-06 22:58:18,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:18,095 INFO L225 Difference]: With dead ends: 478 [2023-11-06 22:58:18,095 INFO L226 Difference]: Without dead ends: 476 [2023-11-06 22:58:18,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:58:18,097 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 161 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 2296 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:18,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 2296 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:58:18,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2023-11-06 22:58:18,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2023-11-06 22:58:18,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 388 states have (on average 1.4536082474226804) internal successors, (564), 425 states have internal predecessors, (564), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:58:18,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 641 transitions. [2023-11-06 22:58:18,123 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 641 transitions. Word has length 23 [2023-11-06 22:58:18,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:18,124 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 641 transitions. [2023-11-06 22:58:18,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:18,124 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 641 transitions. [2023-11-06 22:58:18,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-06 22:58:18,125 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:18,125 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:18,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:58:18,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 22:58:18,333 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:18,333 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:18,333 INFO L85 PathProgramCache]: Analyzing trace with hash -474099924, now seen corresponding path program 1 times [2023-11-06 22:58:18,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:18,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290559358] [2023-11-06 22:58:18,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:18,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:18,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:58:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:18,589 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 22:58:18,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:18,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290559358] [2023-11-06 22:58:18,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290559358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:18,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:18,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:58:18,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894167466] [2023-11-06 22:58:18,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:18,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:58:18,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:18,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:58:18,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:18,592 INFO L87 Difference]: Start difference. First operand 476 states and 641 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:18,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:18,646 INFO L93 Difference]: Finished difference Result 934 states and 1265 transitions. [2023-11-06 22:58:18,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:58:18,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2023-11-06 22:58:18,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:18,681 INFO L225 Difference]: With dead ends: 934 [2023-11-06 22:58:18,681 INFO L226 Difference]: Without dead ends: 479 [2023-11-06 22:58:18,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:18,684 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 1 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:18,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1250 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:58:18,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2023-11-06 22:58:18,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 479. [2023-11-06 22:58:18,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 391 states have (on average 1.4501278772378516) internal successors, (567), 428 states have internal predecessors, (567), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:58:18,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 644 transitions. [2023-11-06 22:58:18,716 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 644 transitions. Word has length 28 [2023-11-06 22:58:18,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:18,717 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 644 transitions. [2023-11-06 22:58:18,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:18,717 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 644 transitions. [2023-11-06 22:58:18,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-06 22:58:18,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:18,719 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:18,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:58:18,719 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:18,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:18,720 INFO L85 PathProgramCache]: Analyzing trace with hash -2057368828, now seen corresponding path program 1 times [2023-11-06 22:58:18,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:18,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614536958] [2023-11-06 22:58:18,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:18,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:18,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:58:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:18,942 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 22:58:18,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:18,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614536958] [2023-11-06 22:58:18,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614536958] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:58:18,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861250141] [2023-11-06 22:58:18,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:18,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:18,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:18,944 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:58:18,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:58:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:19,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:58:19,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:58:19,404 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:58:19,404 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:58:19,530 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:58:19,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861250141] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:58:19,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:58:19,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-06 22:58:19,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891382844] [2023-11-06 22:58:19,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:58:19,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 22:58:19,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:19,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 22:58:19,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:58:19,533 INFO L87 Difference]: Start difference. First operand 479 states and 644 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-06 22:58:19,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:19,692 INFO L93 Difference]: Finished difference Result 960 states and 1296 transitions. [2023-11-06 22:58:19,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:58:19,692 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2023-11-06 22:58:19,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:19,697 INFO L225 Difference]: With dead ends: 960 [2023-11-06 22:58:19,697 INFO L226 Difference]: Without dead ends: 496 [2023-11-06 22:58:19,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:58:19,701 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 7 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2479 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:19,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2479 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:58:19,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2023-11-06 22:58:19,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2023-11-06 22:58:19,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 409 states have (on average 1.4278728606356967) internal successors, (584), 445 states have internal predecessors, (584), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:58:19,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 661 transitions. [2023-11-06 22:58:19,737 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 661 transitions. Word has length 31 [2023-11-06 22:58:19,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:19,738 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 661 transitions. [2023-11-06 22:58:19,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-06 22:58:19,738 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 661 transitions. [2023-11-06 22:58:19,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 22:58:19,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:19,744 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:19,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:58:19,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-06 22:58:19,953 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:19,953 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:19,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1702900952, now seen corresponding path program 1 times [2023-11-06 22:58:19,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:19,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246893470] [2023-11-06 22:58:19,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:19,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:20,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:20,209 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-06 22:58:20,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:20,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246893470] [2023-11-06 22:58:20,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246893470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:20,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:20,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:58:20,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34169471] [2023-11-06 22:58:20,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:20,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:58:20,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:20,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:58:20,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:20,213 INFO L87 Difference]: Start difference. First operand 496 states and 661 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:20,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:20,272 INFO L93 Difference]: Finished difference Result 510 states and 677 transitions. [2023-11-06 22:58:20,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:58:20,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2023-11-06 22:58:20,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:20,279 INFO L225 Difference]: With dead ends: 510 [2023-11-06 22:58:20,279 INFO L226 Difference]: Without dead ends: 508 [2023-11-06 22:58:20,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:20,282 INFO L413 NwaCegarLoop]: 625 mSDtfsCounter, 3 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:20,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1245 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:58:20,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-11-06 22:58:20,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 506. [2023-11-06 22:58:20,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 419 states have (on average 1.4248210023866348) internal successors, (597), 455 states have internal predecessors, (597), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:58:20,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 674 transitions. [2023-11-06 22:58:20,311 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 674 transitions. Word has length 50 [2023-11-06 22:58:20,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:20,312 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 674 transitions. [2023-11-06 22:58:20,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:20,313 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 674 transitions. [2023-11-06 22:58:20,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 22:58:20,318 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:20,318 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:20,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:58:20,318 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:20,320 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:20,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1702899223, now seen corresponding path program 1 times [2023-11-06 22:58:20,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:20,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689544447] [2023-11-06 22:58:20,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:20,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:20,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:20,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:20,548 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-06 22:58:20,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:20,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689544447] [2023-11-06 22:58:20,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689544447] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:20,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:20,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:58:20,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203330402] [2023-11-06 22:58:20,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:20,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:58:20,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:20,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:58:20,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:20,551 INFO L87 Difference]: Start difference. First operand 506 states and 674 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:20,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:20,585 INFO L93 Difference]: Finished difference Result 506 states and 674 transitions. [2023-11-06 22:58:20,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:58:20,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2023-11-06 22:58:20,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:20,590 INFO L225 Difference]: With dead ends: 506 [2023-11-06 22:58:20,590 INFO L226 Difference]: Without dead ends: 505 [2023-11-06 22:58:20,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:20,591 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 0 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:20,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1248 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:58:20,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2023-11-06 22:58:20,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 501. [2023-11-06 22:58:20,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 415 states have (on average 1.4240963855421687) internal successors, (591), 450 states have internal predecessors, (591), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:58:20,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 668 transitions. [2023-11-06 22:58:20,621 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 668 transitions. Word has length 50 [2023-11-06 22:58:20,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:20,623 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 668 transitions. [2023-11-06 22:58:20,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:20,624 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 668 transitions. [2023-11-06 22:58:20,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-06 22:58:20,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:20,625 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:20,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:58:20,626 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:20,626 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:20,626 INFO L85 PathProgramCache]: Analyzing trace with hash -994255873, now seen corresponding path program 1 times [2023-11-06 22:58:20,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:20,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256384162] [2023-11-06 22:58:20,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:20,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:20,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:20,874 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:58:20,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:20,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256384162] [2023-11-06 22:58:20,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256384162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:20,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:20,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:58:20,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183653389] [2023-11-06 22:58:20,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:20,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:58:20,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:20,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:58:20,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:20,879 INFO L87 Difference]: Start difference. First operand 501 states and 668 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:20,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:20,919 INFO L93 Difference]: Finished difference Result 506 states and 673 transitions. [2023-11-06 22:58:20,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:58:20,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2023-11-06 22:58:20,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:20,925 INFO L225 Difference]: With dead ends: 506 [2023-11-06 22:58:20,925 INFO L226 Difference]: Without dead ends: 504 [2023-11-06 22:58:20,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:20,926 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 1 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:20,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1248 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:58:20,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2023-11-06 22:58:20,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2023-11-06 22:58:20,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 418 states have (on average 1.4210526315789473) internal successors, (594), 453 states have internal predecessors, (594), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:58:20,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 671 transitions. [2023-11-06 22:58:20,951 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 671 transitions. Word has length 51 [2023-11-06 22:58:20,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:20,952 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 671 transitions. [2023-11-06 22:58:20,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:20,952 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 671 transitions. [2023-11-06 22:58:20,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-06 22:58:20,954 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:20,954 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:20,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:58:20,955 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:20,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:20,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1780815522, now seen corresponding path program 1 times [2023-11-06 22:58:20,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:20,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058797839] [2023-11-06 22:58:20,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:20,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:21,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:21,259 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:58:21,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:21,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058797839] [2023-11-06 22:58:21,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058797839] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:58:21,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573397029] [2023-11-06 22:58:21,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:21,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:21,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:21,265 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:58:21,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:58:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:21,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:58:21,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:58:21,734 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-06 22:58:21,734 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:58:21,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573397029] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:21,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:58:21,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 6 [2023-11-06 22:58:21,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883742926] [2023-11-06 22:58:21,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:21,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:58:21,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:21,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:58:21,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:58:21,737 INFO L87 Difference]: Start difference. First operand 504 states and 671 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:21,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:21,823 INFO L93 Difference]: Finished difference Result 624 states and 843 transitions. [2023-11-06 22:58:21,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:58:21,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2023-11-06 22:58:21,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:21,828 INFO L225 Difference]: With dead ends: 624 [2023-11-06 22:58:21,829 INFO L226 Difference]: Without dead ends: 615 [2023-11-06 22:58:21,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:58:21,830 INFO L413 NwaCegarLoop]: 627 mSDtfsCounter, 269 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:21,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 1876 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:58:21,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2023-11-06 22:58:21,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 506. [2023-11-06 22:58:21,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 420 states have (on average 1.4190476190476191) internal successors, (596), 455 states have internal predecessors, (596), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:58:21,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 673 transitions. [2023-11-06 22:58:21,859 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 673 transitions. Word has length 54 [2023-11-06 22:58:21,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:21,860 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 673 transitions. [2023-11-06 22:58:21,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:21,860 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 673 transitions. [2023-11-06 22:58:21,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-06 22:58:21,861 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:21,861 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:58:21,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:58:22,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-06 22:58:22,069 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:22,069 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:22,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1840323703, now seen corresponding path program 1 times [2023-11-06 22:58:22,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:22,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260599434] [2023-11-06 22:58:22,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:22,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:22,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:22,363 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:58:22,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:22,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260599434] [2023-11-06 22:58:22,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260599434] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:58:22,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137061963] [2023-11-06 22:58:22,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:22,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:22,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:22,366 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:58:22,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:58:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:22,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:58:22,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:58:22,894 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-06 22:58:22,894 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:58:22,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137061963] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:22,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:58:22,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2023-11-06 22:58:22,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216233695] [2023-11-06 22:58:22,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:22,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:58:22,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:22,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:58:22,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:58:22,897 INFO L87 Difference]: Start difference. First operand 506 states and 673 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:23,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:23,035 INFO L93 Difference]: Finished difference Result 623 states and 844 transitions. [2023-11-06 22:58:23,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:58:23,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2023-11-06 22:58:23,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:23,041 INFO L225 Difference]: With dead ends: 623 [2023-11-06 22:58:23,041 INFO L226 Difference]: Without dead ends: 610 [2023-11-06 22:58:23,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:58:23,043 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 137 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:23,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 2004 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:58:23,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2023-11-06 22:58:23,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 607. [2023-11-06 22:58:23,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 510 states have (on average 1.4215686274509804) internal successors, (725), 547 states have internal predecessors, (725), 50 states have call successors, (50), 13 states have call predecessors, (50), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-06 22:58:23,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 823 transitions. [2023-11-06 22:58:23,079 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 823 transitions. Word has length 58 [2023-11-06 22:58:23,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:23,079 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 823 transitions. [2023-11-06 22:58:23,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:23,080 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 823 transitions. [2023-11-06 22:58:23,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-06 22:58:23,080 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:23,081 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:23,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:58:23,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-06 22:58:23,289 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:23,290 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:23,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1874835281, now seen corresponding path program 1 times [2023-11-06 22:58:23,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:23,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263244538] [2023-11-06 22:58:23,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:23,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:23,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:23,604 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-06 22:58:23,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:23,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263244538] [2023-11-06 22:58:23,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263244538] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:58:23,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499599596] [2023-11-06 22:58:23,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:23,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:23,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:23,607 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:58:23,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:58:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:24,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:58:24,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:58:24,227 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-06 22:58:24,227 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:58:24,257 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-06 22:58:24,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499599596] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:58:24,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:58:24,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-06 22:58:24,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976198084] [2023-11-06 22:58:24,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:58:24,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:58:24,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:24,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:58:24,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:58:24,261 INFO L87 Difference]: Start difference. First operand 607 states and 823 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:24,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:24,350 INFO L93 Difference]: Finished difference Result 1087 states and 1472 transitions. [2023-11-06 22:58:24,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:58:24,351 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2023-11-06 22:58:24,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:24,355 INFO L225 Difference]: With dead ends: 1087 [2023-11-06 22:58:24,355 INFO L226 Difference]: Without dead ends: 625 [2023-11-06 22:58:24,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:58:24,358 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 4 mSDsluCounter, 1866 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2492 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:24,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2492 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:58:24,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2023-11-06 22:58:24,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 625. [2023-11-06 22:58:24,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 528 states have (on average 1.4071969696969697) internal successors, (743), 565 states have internal predecessors, (743), 50 states have call successors, (50), 13 states have call predecessors, (50), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-06 22:58:24,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 841 transitions. [2023-11-06 22:58:24,395 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 841 transitions. Word has length 58 [2023-11-06 22:58:24,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:24,396 INFO L495 AbstractCegarLoop]: Abstraction has 625 states and 841 transitions. [2023-11-06 22:58:24,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:24,396 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 841 transitions. [2023-11-06 22:58:24,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-06 22:58:24,397 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:24,397 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:24,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:58:24,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-06 22:58:24,606 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:24,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:24,606 INFO L85 PathProgramCache]: Analyzing trace with hash 618636297, now seen corresponding path program 1 times [2023-11-06 22:58:24,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:24,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307462527] [2023-11-06 22:58:24,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:24,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:24,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:24,932 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:58:24,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:24,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307462527] [2023-11-06 22:58:24,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307462527] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:24,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:24,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:58:24,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020722035] [2023-11-06 22:58:24,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:24,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:58:24,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:24,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:58:24,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:58:24,935 INFO L87 Difference]: Start difference. First operand 625 states and 841 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:25,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:25,061 INFO L93 Difference]: Finished difference Result 865 states and 1131 transitions. [2023-11-06 22:58:25,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:58:25,062 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2023-11-06 22:58:25,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:25,067 INFO L225 Difference]: With dead ends: 865 [2023-11-06 22:58:25,068 INFO L226 Difference]: Without dead ends: 738 [2023-11-06 22:58:25,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:58:25,070 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 249 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 3114 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:25,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 3114 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:58:25,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2023-11-06 22:58:25,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 710. [2023-11-06 22:58:25,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 605 states have (on average 1.4363636363636363) internal successors, (869), 642 states have internal predecessors, (869), 56 states have call successors, (56), 15 states have call predecessors, (56), 15 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:58:25,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 979 transitions. [2023-11-06 22:58:25,113 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 979 transitions. Word has length 63 [2023-11-06 22:58:25,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:25,114 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 979 transitions. [2023-11-06 22:58:25,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:25,116 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 979 transitions. [2023-11-06 22:58:25,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-06 22:58:25,117 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:25,117 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:25,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 22:58:25,118 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:25,118 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:25,118 INFO L85 PathProgramCache]: Analyzing trace with hash 675894599, now seen corresponding path program 1 times [2023-11-06 22:58:25,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:25,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261790135] [2023-11-06 22:58:25,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:25,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:25,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:25,344 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:58:25,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:25,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261790135] [2023-11-06 22:58:25,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261790135] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:25,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:25,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:58:25,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229340590] [2023-11-06 22:58:25,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:25,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:58:25,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:25,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:58:25,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:25,348 INFO L87 Difference]: Start difference. First operand 710 states and 979 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:25,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:25,403 INFO L93 Difference]: Finished difference Result 726 states and 1003 transitions. [2023-11-06 22:58:25,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:58:25,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2023-11-06 22:58:25,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:25,410 INFO L225 Difference]: With dead ends: 726 [2023-11-06 22:58:25,410 INFO L226 Difference]: Without dead ends: 724 [2023-11-06 22:58:25,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:25,411 INFO L413 NwaCegarLoop]: 627 mSDtfsCounter, 4 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:25,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1246 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:58:25,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2023-11-06 22:58:25,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 718. [2023-11-06 22:58:25,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 613 states have (on average 1.4371941272430668) internal successors, (881), 650 states have internal predecessors, (881), 56 states have call successors, (56), 15 states have call predecessors, (56), 15 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:58:25,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 991 transitions. [2023-11-06 22:58:25,454 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 991 transitions. Word has length 63 [2023-11-06 22:58:25,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:25,455 INFO L495 AbstractCegarLoop]: Abstraction has 718 states and 991 transitions. [2023-11-06 22:58:25,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:25,455 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 991 transitions. [2023-11-06 22:58:25,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-06 22:58:25,456 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:25,456 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:25,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-06 22:58:25,457 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:25,457 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:25,457 INFO L85 PathProgramCache]: Analyzing trace with hash 952653052, now seen corresponding path program 1 times [2023-11-06 22:58:25,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:25,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307527901] [2023-11-06 22:58:25,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:25,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:25,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:25,701 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:58:25,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:25,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307527901] [2023-11-06 22:58:25,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307527901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:25,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:25,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:58:25,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387335025] [2023-11-06 22:58:25,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:25,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:58:25,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:25,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:58:25,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:58:25,704 INFO L87 Difference]: Start difference. First operand 718 states and 991 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:25,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:25,839 INFO L93 Difference]: Finished difference Result 1324 states and 1856 transitions. [2023-11-06 22:58:25,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:58:25,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2023-11-06 22:58:25,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:25,846 INFO L225 Difference]: With dead ends: 1324 [2023-11-06 22:58:25,846 INFO L226 Difference]: Without dead ends: 730 [2023-11-06 22:58:25,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:58:25,850 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 6 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1838 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:25,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1838 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:58:25,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-11-06 22:58:25,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 722. [2023-11-06 22:58:25,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 617 states have (on average 1.4343598055105349) internal successors, (885), 654 states have internal predecessors, (885), 56 states have call successors, (56), 15 states have call predecessors, (56), 15 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:58:25,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 995 transitions. [2023-11-06 22:58:25,895 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 995 transitions. Word has length 65 [2023-11-06 22:58:25,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:25,896 INFO L495 AbstractCegarLoop]: Abstraction has 722 states and 995 transitions. [2023-11-06 22:58:25,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:25,896 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 995 transitions. [2023-11-06 22:58:25,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-06 22:58:25,897 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:25,897 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:58:25,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-06 22:58:25,898 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:25,898 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:25,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1897708288, now seen corresponding path program 1 times [2023-11-06 22:58:25,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:25,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978205440] [2023-11-06 22:58:25,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:25,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:26,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:26,135 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:58:26,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:26,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978205440] [2023-11-06 22:58:26,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978205440] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:58:26,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736080081] [2023-11-06 22:58:26,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:26,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:26,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:26,137 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:58:26,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:58:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:26,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:58:26,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:58:26,728 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:58:26,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:58:26,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736080081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:26,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:58:26,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-06 22:58:26,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959140329] [2023-11-06 22:58:26,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:26,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:58:26,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:26,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:58:26,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:58:26,731 INFO L87 Difference]: Start difference. First operand 722 states and 995 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:26,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:26,803 INFO L93 Difference]: Finished difference Result 728 states and 1003 transitions. [2023-11-06 22:58:26,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:58:26,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2023-11-06 22:58:26,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:26,809 INFO L225 Difference]: With dead ends: 728 [2023-11-06 22:58:26,809 INFO L226 Difference]: Without dead ends: 727 [2023-11-06 22:58:26,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:58:26,810 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 8 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1864 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:26,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1864 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:58:26,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2023-11-06 22:58:26,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 721. [2023-11-06 22:58:26,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 617 states have (on average 1.4311183144246353) internal successors, (883), 653 states have internal predecessors, (883), 56 states have call successors, (56), 15 states have call predecessors, (56), 15 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:58:26,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 993 transitions. [2023-11-06 22:58:26,873 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 993 transitions. Word has length 67 [2023-11-06 22:58:26,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:26,873 INFO L495 AbstractCegarLoop]: Abstraction has 721 states and 993 transitions. [2023-11-06 22:58:26,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:26,874 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 993 transitions. [2023-11-06 22:58:26,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-06 22:58:26,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:26,875 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:58:26,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:58:27,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-06 22:58:27,082 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:27,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:27,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1300585974, now seen corresponding path program 1 times [2023-11-06 22:58:27,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:27,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738563955] [2023-11-06 22:58:27,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:27,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:27,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:27,382 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:58:27,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:27,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738563955] [2023-11-06 22:58:27,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738563955] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:58:27,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817047510] [2023-11-06 22:58:27,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:27,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:27,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:27,385 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:58:27,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 22:58:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:27,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:58:27,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:58:27,983 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:58:27,984 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:58:28,015 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:58:28,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817047510] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:58:28,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:58:28,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-06 22:58:28,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775634279] [2023-11-06 22:58:28,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:58:28,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:58:28,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:28,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:58:28,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:58:28,018 INFO L87 Difference]: Start difference. First operand 721 states and 993 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:28,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:28,124 INFO L93 Difference]: Finished difference Result 770 states and 1067 transitions. [2023-11-06 22:58:28,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:58:28,124 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2023-11-06 22:58:28,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:28,130 INFO L225 Difference]: With dead ends: 770 [2023-11-06 22:58:28,130 INFO L226 Difference]: Without dead ends: 769 [2023-11-06 22:58:28,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:58:28,131 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 14 mSDsluCounter, 1860 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:28,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2486 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:58:28,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2023-11-06 22:58:28,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 745. [2023-11-06 22:58:28,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 641 states have (on average 1.4336973478939157) internal successors, (919), 677 states have internal predecessors, (919), 56 states have call successors, (56), 15 states have call predecessors, (56), 15 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:58:28,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1029 transitions. [2023-11-06 22:58:28,170 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1029 transitions. Word has length 68 [2023-11-06 22:58:28,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:28,171 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 1029 transitions. [2023-11-06 22:58:28,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:28,171 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1029 transitions. [2023-11-06 22:58:28,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-06 22:58:28,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:28,173 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:58:28,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:58:28,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:28,381 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:28,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:28,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1136461744, now seen corresponding path program 1 times [2023-11-06 22:58:28,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:28,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147101491] [2023-11-06 22:58:28,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:28,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:28,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:28,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-06 22:58:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:28,710 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-06 22:58:28,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:28,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147101491] [2023-11-06 22:58:28,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147101491] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:28,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:28,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:58:28,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748930649] [2023-11-06 22:58:28,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:28,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:58:28,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:28,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:58:28,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:28,714 INFO L87 Difference]: Start difference. First operand 745 states and 1029 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:58:28,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:28,784 INFO L93 Difference]: Finished difference Result 1362 states and 1913 transitions. [2023-11-06 22:58:28,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:58:28,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 72 [2023-11-06 22:58:28,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:28,790 INFO L225 Difference]: With dead ends: 1362 [2023-11-06 22:58:28,790 INFO L226 Difference]: Without dead ends: 751 [2023-11-06 22:58:28,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:28,795 INFO L413 NwaCegarLoop]: 625 mSDtfsCounter, 5 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:28,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1243 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:58:28,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2023-11-06 22:58:28,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 745. [2023-11-06 22:58:28,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 641 states have (on average 1.4305772230889235) internal successors, (917), 677 states have internal predecessors, (917), 56 states have call successors, (56), 15 states have call predecessors, (56), 15 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:58:28,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1027 transitions. [2023-11-06 22:58:28,835 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1027 transitions. Word has length 72 [2023-11-06 22:58:28,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:28,835 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 1027 transitions. [2023-11-06 22:58:28,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:58:28,836 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1027 transitions. [2023-11-06 22:58:28,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-06 22:58:28,837 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:28,837 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:58:28,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-06 22:58:28,838 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:28,838 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:28,838 INFO L85 PathProgramCache]: Analyzing trace with hash 442998856, now seen corresponding path program 1 times [2023-11-06 22:58:28,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:28,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804737502] [2023-11-06 22:58:28,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:28,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:29,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:29,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 22:58:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:29,229 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-06 22:58:29,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:29,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804737502] [2023-11-06 22:58:29,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804737502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:29,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:29,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:58:29,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070817045] [2023-11-06 22:58:29,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:29,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:58:29,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:29,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:58:29,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:58:29,232 INFO L87 Difference]: Start difference. First operand 745 states and 1027 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:58:29,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:29,306 INFO L93 Difference]: Finished difference Result 1325 states and 1858 transitions. [2023-11-06 22:58:29,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:58:29,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 73 [2023-11-06 22:58:29,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:29,313 INFO L225 Difference]: With dead ends: 1325 [2023-11-06 22:58:29,313 INFO L226 Difference]: Without dead ends: 719 [2023-11-06 22:58:29,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:58:29,317 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 200 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:29,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 1598 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:58:29,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2023-11-06 22:58:29,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2023-11-06 22:58:29,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 623 states have (on average 1.4141252006420546) internal successors, (881), 653 states have internal predecessors, (881), 54 states have call successors, (54), 15 states have call predecessors, (54), 15 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-06 22:58:29,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 987 transitions. [2023-11-06 22:58:29,386 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 987 transitions. Word has length 73 [2023-11-06 22:58:29,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:29,387 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 987 transitions. [2023-11-06 22:58:29,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:58:29,387 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 987 transitions. [2023-11-06 22:58:29,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-06 22:58:29,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:29,388 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:58:29,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-06 22:58:29,389 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:29,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:29,389 INFO L85 PathProgramCache]: Analyzing trace with hash 443000778, now seen corresponding path program 1 times [2023-11-06 22:58:29,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:29,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706631755] [2023-11-06 22:58:29,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:29,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:29,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:29,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:29,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 22:58:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:29,919 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-06 22:58:29,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:29,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706631755] [2023-11-06 22:58:29,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706631755] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:29,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:29,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:58:29,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628838666] [2023-11-06 22:58:29,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:29,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:58:29,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:29,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:58:29,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:58:29,921 INFO L87 Difference]: Start difference. First operand 719 states and 987 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:58:30,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:30,171 INFO L93 Difference]: Finished difference Result 1383 states and 1923 transitions. [2023-11-06 22:58:30,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:58:30,171 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 73 [2023-11-06 22:58:30,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:30,177 INFO L225 Difference]: With dead ends: 1383 [2023-11-06 22:58:30,178 INFO L226 Difference]: Without dead ends: 857 [2023-11-06 22:58:30,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:58:30,183 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 115 mSDsluCounter, 2368 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 2969 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:30,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 2969 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:58:30,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2023-11-06 22:58:30,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 765. [2023-11-06 22:58:30,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 667 states have (on average 1.4197901049475263) internal successors, (947), 697 states have internal predecessors, (947), 56 states have call successors, (56), 15 states have call predecessors, (56), 15 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:58:30,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1057 transitions. [2023-11-06 22:58:30,231 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1057 transitions. Word has length 73 [2023-11-06 22:58:30,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:30,231 INFO L495 AbstractCegarLoop]: Abstraction has 765 states and 1057 transitions. [2023-11-06 22:58:30,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:58:30,232 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1057 transitions. [2023-11-06 22:58:30,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-06 22:58:30,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:30,234 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:58:30,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-06 22:58:30,234 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting bb_verror_msgErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:30,234 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:30,234 INFO L85 PathProgramCache]: Analyzing trace with hash 848123010, now seen corresponding path program 1 times [2023-11-06 22:58:30,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:30,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740358778] [2023-11-06 22:58:30,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:30,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:30,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:30,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 22:58:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:30,891 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-06 22:58:30,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:30,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740358778] [2023-11-06 22:58:30,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740358778] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:30,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:30,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:58:30,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990998723] [2023-11-06 22:58:30,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:30,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:58:30,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:30,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:58:30,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:58:30,893 INFO L87 Difference]: Start difference. First operand 765 states and 1057 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:58:31,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:31,079 INFO L93 Difference]: Finished difference Result 857 states and 1175 transitions. [2023-11-06 22:58:31,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:58:31,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2023-11-06 22:58:31,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:31,085 INFO L225 Difference]: With dead ends: 857 [2023-11-06 22:58:31,086 INFO L226 Difference]: Without dead ends: 855 [2023-11-06 22:58:31,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:58:31,087 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 135 mSDsluCounter, 1816 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2432 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:31,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2432 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:58:31,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2023-11-06 22:58:31,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 767. [2023-11-06 22:58:31,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 669 states have (on average 1.4155455904334828) internal successors, (947), 699 states have internal predecessors, (947), 56 states have call successors, (56), 15 states have call predecessors, (56), 15 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:58:31,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1057 transitions. [2023-11-06 22:58:31,142 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1057 transitions. Word has length 74 [2023-11-06 22:58:31,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:31,143 INFO L495 AbstractCegarLoop]: Abstraction has 767 states and 1057 transitions. [2023-11-06 22:58:31,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:58:31,143 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1057 transitions. [2023-11-06 22:58:31,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-06 22:58:31,144 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:31,145 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:58:31,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-06 22:58:31,145 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting bb_verror_msgErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:31,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:31,146 INFO L85 PathProgramCache]: Analyzing trace with hash 522010316, now seen corresponding path program 1 times [2023-11-06 22:58:31,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:31,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685296118] [2023-11-06 22:58:31,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:31,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:31,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:31,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 22:58:31,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:31,678 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-06 22:58:31,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:31,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685296118] [2023-11-06 22:58:31,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685296118] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:31,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:31,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:58:31,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260788674] [2023-11-06 22:58:31,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:31,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:58:31,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:31,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:58:31,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:58:31,681 INFO L87 Difference]: Start difference. First operand 767 states and 1057 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:58:31,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:31,822 INFO L93 Difference]: Finished difference Result 771 states and 1061 transitions. [2023-11-06 22:58:31,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:58:31,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2023-11-06 22:58:31,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:31,827 INFO L225 Difference]: With dead ends: 771 [2023-11-06 22:58:31,828 INFO L226 Difference]: Without dead ends: 770 [2023-11-06 22:58:31,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:58:31,829 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 195 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 2181 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:31,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 2181 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:58:31,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2023-11-06 22:58:31,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 766. [2023-11-06 22:58:31,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 669 states have (on average 1.4095665171898355) internal successors, (943), 698 states have internal predecessors, (943), 56 states have call successors, (56), 15 states have call predecessors, (56), 15 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:58:31,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1053 transitions. [2023-11-06 22:58:31,876 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1053 transitions. Word has length 75 [2023-11-06 22:58:31,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:31,877 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 1053 transitions. [2023-11-06 22:58:31,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:58:31,877 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1053 transitions. [2023-11-06 22:58:31,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-06 22:58:31,878 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:31,879 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:31,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-06 22:58:31,879 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:31,879 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:31,879 INFO L85 PathProgramCache]: Analyzing trace with hash -309500652, now seen corresponding path program 1 times [2023-11-06 22:58:31,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:31,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795535959] [2023-11-06 22:58:31,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:31,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,323 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:58:32,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:32,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795535959] [2023-11-06 22:58:32,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795535959] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:32,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:32,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:58:32,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887762818] [2023-11-06 22:58:32,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:32,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:58:32,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:32,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:58:32,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:58:32,327 INFO L87 Difference]: Start difference. First operand 766 states and 1053 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:33,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:33,025 INFO L93 Difference]: Finished difference Result 1318 states and 1815 transitions. [2023-11-06 22:58:33,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:58:33,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2023-11-06 22:58:33,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:33,031 INFO L225 Difference]: With dead ends: 1318 [2023-11-06 22:58:33,032 INFO L226 Difference]: Without dead ends: 775 [2023-11-06 22:58:33,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:58:33,035 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 4 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2212 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:33,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2212 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:58:33,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2023-11-06 22:58:33,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 770. [2023-11-06 22:58:33,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 673 states have (on average 1.4071322436849927) internal successors, (947), 702 states have internal predecessors, (947), 56 states have call successors, (56), 15 states have call predecessors, (56), 15 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:58:33,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 1057 transitions. [2023-11-06 22:58:33,102 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 1057 transitions. Word has length 74 [2023-11-06 22:58:33,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:33,102 INFO L495 AbstractCegarLoop]: Abstraction has 770 states and 1057 transitions. [2023-11-06 22:58:33,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:33,103 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 1057 transitions. [2023-11-06 22:58:33,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-06 22:58:33,105 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:33,105 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:58:33,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-06 22:58:33,106 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting bb_verror_msgErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:33,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:33,106 INFO L85 PathProgramCache]: Analyzing trace with hash -997548604, now seen corresponding path program 1 times [2023-11-06 22:58:33,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:33,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553254617] [2023-11-06 22:58:33,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:33,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:33,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:33,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 22:58:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:33,512 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-06 22:58:33,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:33,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553254617] [2023-11-06 22:58:33,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553254617] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:33,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:33,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:58:33,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645731145] [2023-11-06 22:58:33,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:33,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:58:33,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:33,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:58:33,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:58:33,515 INFO L87 Difference]: Start difference. First operand 770 states and 1057 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:58:33,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:33,663 INFO L93 Difference]: Finished difference Result 826 states and 1135 transitions. [2023-11-06 22:58:33,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:58:33,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2023-11-06 22:58:33,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:33,669 INFO L225 Difference]: With dead ends: 826 [2023-11-06 22:58:33,669 INFO L226 Difference]: Without dead ends: 825 [2023-11-06 22:58:33,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:58:33,671 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 291 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:33,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 2182 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:58:33,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2023-11-06 22:58:33,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 769. [2023-11-06 22:58:33,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 673 states have (on average 1.401188707280832) internal successors, (943), 701 states have internal predecessors, (943), 56 states have call successors, (56), 15 states have call predecessors, (56), 15 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:58:33,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1053 transitions. [2023-11-06 22:58:33,721 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1053 transitions. Word has length 76 [2023-11-06 22:58:33,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:33,722 INFO L495 AbstractCegarLoop]: Abstraction has 769 states and 1053 transitions. [2023-11-06 22:58:33,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:58:33,722 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1053 transitions. [2023-11-06 22:58:33,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-06 22:58:33,724 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:33,724 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:58:33,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-06 22:58:33,724 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:33,725 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:33,725 INFO L85 PathProgramCache]: Analyzing trace with hash -881283015, now seen corresponding path program 1 times [2023-11-06 22:58:33,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:33,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662690425] [2023-11-06 22:58:33,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:33,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:34,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:34,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:58:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:34,248 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-06 22:58:34,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:34,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662690425] [2023-11-06 22:58:34,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662690425] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:58:34,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132826577] [2023-11-06 22:58:34,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:34,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:34,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:34,253 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:58:34,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-06 22:58:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:34,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 880 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:58:34,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:58:34,965 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-06 22:58:34,965 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:58:34,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132826577] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:34,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:58:34,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-11-06 22:58:34,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884930069] [2023-11-06 22:58:34,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:34,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:58:34,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:34,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:58:34,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:58:34,967 INFO L87 Difference]: Start difference. First operand 769 states and 1053 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:58:35,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:35,074 INFO L93 Difference]: Finished difference Result 1377 states and 1919 transitions. [2023-11-06 22:58:35,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:58:35,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 76 [2023-11-06 22:58:35,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:35,080 INFO L225 Difference]: With dead ends: 1377 [2023-11-06 22:58:35,080 INFO L226 Difference]: Without dead ends: 769 [2023-11-06 22:58:35,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:58:35,084 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 2 mSDsluCounter, 1782 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:35,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2384 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:58:35,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2023-11-06 22:58:35,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 769. [2023-11-06 22:58:35,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 673 states have (on average 1.389301634472511) internal successors, (935), 701 states have internal predecessors, (935), 56 states have call successors, (56), 15 states have call predecessors, (56), 15 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:58:35,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1045 transitions. [2023-11-06 22:58:35,133 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1045 transitions. Word has length 76 [2023-11-06 22:58:35,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:35,133 INFO L495 AbstractCegarLoop]: Abstraction has 769 states and 1045 transitions. [2023-11-06 22:58:35,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:58:35,134 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1045 transitions. [2023-11-06 22:58:35,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-06 22:58:35,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:35,135 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:35,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:58:35,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:35,345 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:35,345 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:35,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1146109756, now seen corresponding path program 1 times [2023-11-06 22:58:35,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:35,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763597781] [2023-11-06 22:58:35,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:35,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:35,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:35,606 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:58:35,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:35,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763597781] [2023-11-06 22:58:35,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763597781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:35,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:35,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:58:35,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637608514] [2023-11-06 22:58:35,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:35,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:58:35,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:35,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:58:35,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:35,608 INFO L87 Difference]: Start difference. First operand 769 states and 1045 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:35,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:35,660 INFO L93 Difference]: Finished difference Result 773 states and 1049 transitions. [2023-11-06 22:58:35,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:58:35,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2023-11-06 22:58:35,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:35,666 INFO L225 Difference]: With dead ends: 773 [2023-11-06 22:58:35,666 INFO L226 Difference]: Without dead ends: 771 [2023-11-06 22:58:35,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:35,667 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 1 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:35,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1202 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:58:35,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2023-11-06 22:58:35,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 771. [2023-11-06 22:58:35,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 675 states have (on average 1.3881481481481481) internal successors, (937), 703 states have internal predecessors, (937), 56 states have call successors, (56), 15 states have call predecessors, (56), 15 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:58:35,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1047 transitions. [2023-11-06 22:58:35,732 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1047 transitions. Word has length 75 [2023-11-06 22:58:35,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:35,733 INFO L495 AbstractCegarLoop]: Abstraction has 771 states and 1047 transitions. [2023-11-06 22:58:35,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:35,734 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1047 transitions. [2023-11-06 22:58:35,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-06 22:58:35,735 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:35,736 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:58:35,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-06 22:58:35,736 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting bb_verror_msgErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:35,736 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:35,737 INFO L85 PathProgramCache]: Analyzing trace with hash -859234866, now seen corresponding path program 1 times [2023-11-06 22:58:35,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:35,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571517668] [2023-11-06 22:58:35,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:35,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:36,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:36,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 22:58:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:36,260 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-06 22:58:36,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:36,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571517668] [2023-11-06 22:58:36,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571517668] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:58:36,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597831562] [2023-11-06 22:58:36,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:36,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:36,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:36,262 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:58:36,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-06 22:58:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:36,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 880 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:58:36,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:58:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:58:36,996 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:58:36,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597831562] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:36,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:58:36,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2023-11-06 22:58:36,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956570302] [2023-11-06 22:58:36,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:36,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:58:36,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:36,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:58:36,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:58:36,999 INFO L87 Difference]: Start difference. First operand 771 states and 1047 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:58:37,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:37,219 INFO L93 Difference]: Finished difference Result 1246 states and 1689 transitions. [2023-11-06 22:58:37,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:58:37,219 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 77 [2023-11-06 22:58:37,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:37,224 INFO L225 Difference]: With dead ends: 1246 [2023-11-06 22:58:37,224 INFO L226 Difference]: Without dead ends: 668 [2023-11-06 22:58:37,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:58:37,227 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 163 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2760 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:37,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 2760 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:58:37,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2023-11-06 22:58:37,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 668. [2023-11-06 22:58:37,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 583 states have (on average 1.3807890222984562) internal successors, (805), 609 states have internal predecessors, (805), 45 states have call successors, (45), 15 states have call predecessors, (45), 15 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-06 22:58:37,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 894 transitions. [2023-11-06 22:58:37,266 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 894 transitions. Word has length 77 [2023-11-06 22:58:37,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:37,266 INFO L495 AbstractCegarLoop]: Abstraction has 668 states and 894 transitions. [2023-11-06 22:58:37,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:58:37,267 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 894 transitions. [2023-11-06 22:58:37,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-06 22:58:37,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:37,268 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 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] [2023-11-06 22:58:37,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:58:37,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:37,477 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:37,477 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:37,477 INFO L85 PathProgramCache]: Analyzing trace with hash 302294154, now seen corresponding path program 1 times [2023-11-06 22:58:37,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:37,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456567779] [2023-11-06 22:58:37,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:37,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:37,759 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-06 22:58:37,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:37,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456567779] [2023-11-06 22:58:37,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456567779] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:58:37,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031984817] [2023-11-06 22:58:37,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:37,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:37,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:37,762 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:58:37,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-06 22:58:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:38,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 847 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:58:38,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:58:38,541 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-06 22:58:38,542 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:58:38,643 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-06 22:58:38,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031984817] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:58:38,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:58:38,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-06 22:58:38,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450405753] [2023-11-06 22:58:38,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:58:38,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 22:58:38,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:38,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 22:58:38,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:58:38,646 INFO L87 Difference]: Start difference. First operand 668 states and 894 transitions. Second operand has 14 states, 14 states have (on average 5.857142857142857) internal successors, (82), 14 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:38,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:38,831 INFO L93 Difference]: Finished difference Result 1318 states and 1780 transitions. [2023-11-06 22:58:38,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:58:38,832 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.857142857142857) internal successors, (82), 14 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2023-11-06 22:58:38,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:38,837 INFO L225 Difference]: With dead ends: 1318 [2023-11-06 22:58:38,837 INFO L226 Difference]: Without dead ends: 703 [2023-11-06 22:58:38,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:58:38,841 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 6 mSDsluCounter, 3562 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4159 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:38,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4159 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:58:38,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2023-11-06 22:58:38,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 703. [2023-11-06 22:58:38,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 619 states have (on average 1.35702746365105) internal successors, (840), 644 states have internal predecessors, (840), 45 states have call successors, (45), 15 states have call predecessors, (45), 15 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-06 22:58:38,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 929 transitions. [2023-11-06 22:58:38,885 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 929 transitions. Word has length 75 [2023-11-06 22:58:38,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:38,886 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 929 transitions. [2023-11-06 22:58:38,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.857142857142857) internal successors, (82), 14 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:38,886 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 929 transitions. [2023-11-06 22:58:38,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-06 22:58:38,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:38,887 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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] [2023-11-06 22:58:38,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:58:39,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:39,096 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:39,097 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:39,097 INFO L85 PathProgramCache]: Analyzing trace with hash 646595920, now seen corresponding path program 1 times [2023-11-06 22:58:39,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:39,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931450091] [2023-11-06 22:58:39,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:39,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:39,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:39,472 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:58:39,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:39,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931450091] [2023-11-06 22:58:39,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931450091] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:58:39,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072815090] [2023-11-06 22:58:39,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:39,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:39,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:39,477 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:58:39,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-06 22:58:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:40,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:58:40,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:58:40,346 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:58:40,347 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:58:40,378 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:58:40,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072815090] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:58:40,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:58:40,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-06 22:58:40,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109930806] [2023-11-06 22:58:40,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:58:40,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:58:40,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:40,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:58:40,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:58:40,382 INFO L87 Difference]: Start difference. First operand 703 states and 929 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:40,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:40,466 INFO L93 Difference]: Finished difference Result 713 states and 941 transitions. [2023-11-06 22:58:40,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:58:40,467 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2023-11-06 22:58:40,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:40,471 INFO L225 Difference]: With dead ends: 713 [2023-11-06 22:58:40,472 INFO L226 Difference]: Without dead ends: 712 [2023-11-06 22:58:40,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:58:40,474 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 0 mSDsluCounter, 2392 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2993 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:40,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2993 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:58:40,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2023-11-06 22:58:40,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2023-11-06 22:58:40,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 628 states have (on average 1.3519108280254777) internal successors, (849), 653 states have internal predecessors, (849), 45 states have call successors, (45), 15 states have call predecessors, (45), 15 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-06 22:58:40,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 938 transitions. [2023-11-06 22:58:40,523 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 938 transitions. Word has length 94 [2023-11-06 22:58:40,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:40,523 INFO L495 AbstractCegarLoop]: Abstraction has 712 states and 938 transitions. [2023-11-06 22:58:40,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:40,523 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 938 transitions. [2023-11-06 22:58:40,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-06 22:58:40,525 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:40,525 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:40,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:58:40,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:40,735 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:40,736 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:40,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1772917913, now seen corresponding path program 2 times [2023-11-06 22:58:40,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:40,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614525744] [2023-11-06 22:58:40,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:40,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:41,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:58:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:41,225 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-11-06 22:58:41,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:41,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614525744] [2023-11-06 22:58:41,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614525744] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:58:41,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619982764] [2023-11-06 22:58:41,226 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:58:41,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:41,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:41,228 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:58:41,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-06 22:58:42,013 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:58:42,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:58:42,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:58:42,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:58:42,109 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-11-06 22:58:42,109 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:58:42,213 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-11-06 22:58:42,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619982764] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:58:42,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:58:42,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-06 22:58:42,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857500214] [2023-11-06 22:58:42,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:58:42,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:58:42,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:42,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:58:42,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:58:42,215 INFO L87 Difference]: Start difference. First operand 712 states and 938 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:42,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:42,347 INFO L93 Difference]: Finished difference Result 712 states and 938 transitions. [2023-11-06 22:58:42,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:58:42,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 103 [2023-11-06 22:58:42,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:42,352 INFO L225 Difference]: With dead ends: 712 [2023-11-06 22:58:42,352 INFO L226 Difference]: Without dead ends: 676 [2023-11-06 22:58:42,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:58:42,354 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 263 mSDsluCounter, 1615 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:42,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 2208 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:58:42,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2023-11-06 22:58:42,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 674. [2023-11-06 22:58:42,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 593 states have (on average 1.3473861720067453) internal successors, (799), 617 states have internal predecessors, (799), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:58:42,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 886 transitions. [2023-11-06 22:58:42,397 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 886 transitions. Word has length 103 [2023-11-06 22:58:42,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:42,397 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 886 transitions. [2023-11-06 22:58:42,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:58:42,398 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 886 transitions. [2023-11-06 22:58:42,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-06 22:58:42,400 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:42,400 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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] [2023-11-06 22:58:42,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:58:42,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:58:42,612 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting bb_verror_msgErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-11-06 22:58:42,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:42,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1415521837, now seen corresponding path program 1 times [2023-11-06 22:58:42,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:42,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903657127] [2023-11-06 22:58:42,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:42,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:58:42,920 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:58:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:58:43,494 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:58:43,494 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:58:43,495 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location bb_verror_msgErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 52 remaining) [2023-11-06 22:58:43,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 52 remaining) [2023-11-06 22:58:43,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 52 remaining) [2023-11-06 22:58:43,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 52 remaining) [2023-11-06 22:58:43,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 52 remaining) [2023-11-06 22:58:43,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 52 remaining) [2023-11-06 22:58:43,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_ascii_isalnumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 52 remaining) [2023-11-06 22:58:43,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 52 remaining) [2023-11-06 22:58:43,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 52 remaining) [2023-11-06 22:58:43,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 52 remaining) [2023-11-06 22:58:43,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 52 remaining) [2023-11-06 22:58:43,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 52 remaining) [2023-11-06 22:58:43,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 52 remaining) [2023-11-06 22:58:43,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 52 remaining) [2023-11-06 22:58:43,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 52 remaining) [2023-11-06 22:58:43,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 52 remaining) [2023-11-06 22:58:43,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 52 remaining) [2023-11-06 22:58:43,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 52 remaining) [2023-11-06 22:58:43,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 52 remaining) [2023-11-06 22:58:43,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 52 remaining) [2023-11-06 22:58:43,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 52 remaining) [2023-11-06 22:58:43,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 52 remaining) [2023-11-06 22:58:43,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 52 remaining) [2023-11-06 22:58:43,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 52 remaining) [2023-11-06 22:58:43,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 52 remaining) [2023-11-06 22:58:43,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 52 remaining) [2023-11-06 22:58:43,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 52 remaining) [2023-11-06 22:58:43,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 52 remaining) [2023-11-06 22:58:43,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 52 remaining) [2023-11-06 22:58:43,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 52 remaining) [2023-11-06 22:58:43,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 52 remaining) [2023-11-06 22:58:43,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 52 remaining) [2023-11-06 22:58:43,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 52 remaining) [2023-11-06 22:58:43,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 52 remaining) [2023-11-06 22:58:43,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 52 remaining) [2023-11-06 22:58:43,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 52 remaining) [2023-11-06 22:58:43,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 52 remaining) [2023-11-06 22:58:43,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 52 remaining) [2023-11-06 22:58:43,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 52 remaining) [2023-11-06 22:58:43,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 52 remaining) [2023-11-06 22:58:43,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 52 remaining) [2023-11-06 22:58:43,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 52 remaining) [2023-11-06 22:58:43,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 52 remaining) [2023-11-06 22:58:43,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 52 remaining) [2023-11-06 22:58:43,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 52 remaining) [2023-11-06 22:58:43,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 52 remaining) [2023-11-06 22:58:43,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 52 remaining) [2023-11-06 22:58:43,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 52 remaining) [2023-11-06 22:58:43,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 52 remaining) [2023-11-06 22:58:43,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 52 remaining) [2023-11-06 22:58:43,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 52 remaining) [2023-11-06 22:58:43,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 52 remaining) [2023-11-06 22:58:43,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-06 22:58:43,512 INFO L445 BasicCegarLoop]: Path program 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] [2023-11-06 22:58:43,516 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:58:43,618 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-06 22:58:43,627 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-06 22:58:43,632 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-06 22:58:43,635 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #varArgs [2023-11-06 22:58:43,636 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expression #varArgs!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-06 22:58:43,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:58:43 BoogieIcfgContainer [2023-11-06 22:58:43,667 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:58:43,667 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:58:43,668 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:58:43,668 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:58:43,668 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:58:13" (3/4) ... [2023-11-06 22:58:43,670 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:58:43,672 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:58:43,672 INFO L158 Benchmark]: Toolchain (without parser) took 36121.24ms. Allocated memory was 153.1MB in the beginning and 608.2MB in the end (delta: 455.1MB). Free memory was 100.9MB in the beginning and 218.2MB in the end (delta: -117.2MB). Peak memory consumption was 339.8MB. Max. memory is 16.1GB. [2023-11-06 22:58:43,672 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:58:43,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2599.54ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 100.9MB in the beginning and 115.6MB in the end (delta: -14.7MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. [2023-11-06 22:58:43,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 225.54ms. Allocated memory is still 184.5MB. Free memory was 115.6MB in the beginning and 104.1MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:58:43,677 INFO L158 Benchmark]: Boogie Preprocessor took 208.97ms. Allocated memory is still 184.5MB. Free memory was 104.1MB in the beginning and 92.5MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:58:43,682 INFO L158 Benchmark]: RCFGBuilder took 2446.31ms. Allocated memory is still 184.5MB. Free memory was 92.5MB in the beginning and 72.9MB in the end (delta: 19.6MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2023-11-06 22:58:43,683 INFO L158 Benchmark]: TraceAbstraction took 30627.09ms. Allocated memory was 184.5MB in the beginning and 608.2MB in the end (delta: 423.6MB). Free memory was 71.9MB in the beginning and 218.2MB in the end (delta: -146.3MB). Peak memory consumption was 277.3MB. Max. memory is 16.1GB. [2023-11-06 22:58:43,685 INFO L158 Benchmark]: Witness Printer took 4.16ms. Allocated memory is still 608.2MB. Free memory is still 218.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:58:43,686 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2599.54ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 100.9MB in the beginning and 115.6MB in the end (delta: -14.7MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 225.54ms. Allocated memory is still 184.5MB. Free memory was 115.6MB in the beginning and 104.1MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 208.97ms. Allocated memory is still 184.5MB. Free memory was 104.1MB in the beginning and 92.5MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 2446.31ms. Allocated memory is still 184.5MB. Free memory was 92.5MB in the beginning and 72.9MB in the end (delta: 19.6MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. * TraceAbstraction took 30627.09ms. Allocated memory was 184.5MB in the beginning and 608.2MB in the end (delta: 423.6MB). Free memory was 71.9MB in the beginning and 218.2MB in the end (delta: -146.3MB). Peak memory consumption was 277.3MB. Max. memory is 16.1GB. * Witness Printer took 4.16ms. Allocated memory is still 608.2MB. Free memory is still 218.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #varArgs - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #varArgs!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 2596]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of strlen at line 2593. Possible FailurePath: [L2370] static const char *applet_name; [L2371] static signed int bb_errno_location; [L2372] static signed int * const bb_errno = &bb_errno_location; [L2373] static const char bb_msg_memory_exhausted[14l] = { (const char)111, (const char)117, (const char)116, (const char)32, (const char)111, (const char)102, (const char)32, (const char)109, (const char)101, (const char)109, (const char)111, (const char)114, (const char)121, (const char)0 }; [L2374] static struct __jmp_buf_tag die_jmp[1l]; [L2375] static signed int die_sleep; [L2376] static char local_buf[(signed long int)(sizeof(signed int) * 3) ]; [L2377] static signed char logmode = (signed char)1; [L2378] static const char *msg_eol = "\n"; [L2379] static unsigned char xfunc_error_retval = (unsigned char)1; [L2445] static const char charmap[20l] = { (const char)97, (const char)98, (const char)101, (const char)102, (const char)110, (const char)114, (const char)116, (const char)118, (const char)92, (const char)0, (const char)7, (const char)8, (const char)27, (const char)12, (const char)10, (const char)13, (const char)9, (const char)11, (const char)92, (const char)92 }; [L3133] static const char format_chars[14l] = { (const char)100, (const char)105, (const char)111, (const char)117, (const char)120, (const char)88, (const char)102, (const char)101, (const char)69, (const char)103, (const char)71, (const char)99, (const char)115, (const char)0 }; [L3336] static struct utmp dummy_utmp; VAL [applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3418] char *a = malloc(11); [L3419] a[10] = 0 [L3420] int i=0; VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=0, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=1, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=2, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=3, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=4, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=5, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=6, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=7, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=8, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=9, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=10, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND FALSE !(i<10) VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=10, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3422] applet_name = a [L3423] bb_errno_location = __VERIFIER_nondet_int() [L3424] optind = 1 [L3425] int argc = __VERIFIER_nondet_int(); [L3426] CALL assume_abort_if_not(argc >= 1 && argc <= 10000) VAL [\old(cond)=1, applet_name={21:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, local_buf={16:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L9] COND FALSE !(!cond) VAL [\old(cond)=1, applet_name={21:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, cond=1, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, local_buf={16:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L3426] RET assume_abort_if_not(argc >= 1 && argc <= 10000) VAL [a={21:0}, applet_name={21:0}, argc=1, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, local_buf={16:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L3427] EXPR argc+1 [L3427] char **argv=malloc((argc+1)*sizeof(char*)); [L3428] EXPR argc+1 [L3428] char **mem_track=malloc((argc+1)*sizeof(char*)); [L3429] argv[argc]=0 [L3430] int i=0; VAL [a={21:0}, applet_name={21:0}, argc=1, argv={-13:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=0, local_buf={16:0}, logmode=1, mem_track={-14:0}, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L3430] COND TRUE i main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1439ef84a1af17ccf44ca8c0d6ca169b34f09692271293b069ca646aa923532 [2023-11-06 22:58:46,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:58:46,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:58:46,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:58:46,953 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:58:46,954 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:58:46,956 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/busybox-1.22.0/printf-1.i [2023-11-06 22:58:50,174 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:58:50,816 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:58:50,818 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/sv-benchmarks/c/busybox-1.22.0/printf-1.i [2023-11-06 22:58:50,860 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/data/72ab56d15/e0bb4b73d6fd4063a858592655fe0e5e/FLAGe8796ca7f [2023-11-06 22:58:50,880 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/data/72ab56d15/e0bb4b73d6fd4063a858592655fe0e5e [2023-11-06 22:58:50,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:58:50,887 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:58:50,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:58:50,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:58:50,895 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:58:50,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:58:50" (1/1) ... [2023-11-06 22:58:50,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b7dc1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:50, skipping insertion in model container [2023-11-06 22:58:50,898 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:58:50" (1/1) ... [2023-11-06 22:58:51,015 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:58:52,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:58:52,826 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 22:58:52,877 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:58:53,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:58:53,144 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:58:53,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:58:53,627 WARN L672 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:53,627 WARN L672 CHandler]: The function strtoull is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:53,627 WARN L672 CHandler]: The function strtol is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:53,627 WARN L672 CHandler]: The function strstr is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:53,627 WARN L672 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:53,628 WARN L672 CHandler]: The function strtoll is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:53,628 WARN L672 CHandler]: The function longjmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:53,628 WARN L672 CHandler]: The function convert is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:53,636 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:58:53,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:53 WrapperNode [2023-11-06 22:58:53,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:58:53,639 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:58:53,639 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:58:53,639 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:58:53,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:53" (1/1) ... [2023-11-06 22:58:53,724 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:53" (1/1) ... [2023-11-06 22:58:53,843 INFO L138 Inliner]: procedures = 662, calls = 521, calls flagged for inlining = 31, calls inlined = 29, statements flattened = 1512 [2023-11-06 22:58:53,844 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:58:53,845 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:58:53,845 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:58:53,845 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:58:53,855 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:53" (1/1) ... [2023-11-06 22:58:53,855 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:53" (1/1) ... [2023-11-06 22:58:53,891 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:53" (1/1) ... [2023-11-06 22:58:53,892 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:53" (1/1) ... [2023-11-06 22:58:53,981 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:53" (1/1) ... [2023-11-06 22:58:54,006 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:53" (1/1) ... [2023-11-06 22:58:54,065 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:53" (1/1) ... [2023-11-06 22:58:54,085 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:53" (1/1) ... [2023-11-06 22:58:54,114 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:58:54,116 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:58:54,116 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:58:54,116 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:58:54,117 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:53" (1/1) ... [2023-11-06 22:58:54,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:58:54,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:54,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:58:54,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:58:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-11-06 22:58:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure bb_putchar [2023-11-06 22:58:54,200 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_putchar [2023-11-06 22:58:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-11-06 22:58:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2023-11-06 22:58:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:58:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:58:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-06 22:58:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure ret_ERANGE [2023-11-06 22:58:54,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ret_ERANGE [2023-11-06 22:58:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-06 22:58:54,202 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-06 22:58:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure get_width_prec [2023-11-06 22:58:54,202 INFO L138 BoogieDeclarations]: Found implementation of procedure get_width_prec [2023-11-06 22:58:54,203 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-11-06 22:58:54,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:58:54,203 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-06 22:58:54,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:58:54,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:58:54,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-06 22:58:54,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-06 22:58:54,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-06 22:58:54,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-06 22:58:54,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:58:54,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:58:54,206 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-06 22:58:54,206 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-06 22:58:54,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 22:58:54,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-06 22:58:54,207 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-06 22:58:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-06 22:58:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 22:58:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-06 22:58:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 22:58:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure handle_errors [2023-11-06 22:58:54,207 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_errors [2023-11-06 22:58:54,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-11-06 22:58:54,208 INFO L130 BoogieDeclarations]: Found specification of procedure bb_process_escape_sequence [2023-11-06 22:58:54,208 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_process_escape_sequence [2023-11-06 22:58:54,208 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:58:54,208 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:58:54,209 INFO L130 BoogieDeclarations]: Found specification of procedure print_direc [2023-11-06 22:58:54,209 INFO L138 BoogieDeclarations]: Found implementation of procedure print_direc [2023-11-06 22:58:54,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:58:54,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:58:54,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-06 22:58:54,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-06 22:58:54,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 22:58:54,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:58:54,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2023-11-06 22:58:54,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2023-11-06 22:58:54,211 INFO L130 BoogieDeclarations]: Found specification of procedure bb_ascii_isalnum [2023-11-06 22:58:54,211 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_ascii_isalnum [2023-11-06 22:58:54,211 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-11-06 22:58:54,211 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2023-11-06 22:58:54,212 INFO L130 BoogieDeclarations]: Found specification of procedure bb_strtoll [2023-11-06 22:58:54,213 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_strtoll [2023-11-06 22:58:54,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-06 22:58:54,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-06 22:58:54,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-06 22:58:54,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-06 22:58:54,214 INFO L130 BoogieDeclarations]: Found specification of procedure multiconvert [2023-11-06 22:58:54,214 INFO L138 BoogieDeclarations]: Found implementation of procedure multiconvert [2023-11-06 22:58:54,215 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg [2023-11-06 22:58:54,215 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg [2023-11-06 22:58:54,877 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:58:54,880 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:59:02,599 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:59:02,610 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:59:02,611 INFO L302 CfgBuilder]: Removed 18 assume(true) statements. [2023-11-06 22:59:02,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:02 BoogieIcfgContainer [2023-11-06 22:59:02,614 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:59:02,616 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:59:02,616 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:59:02,619 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:59:02,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:58:50" (1/3) ... [2023-11-06 22:59:02,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66744657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:59:02, skipping insertion in model container [2023-11-06 22:59:02,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:53" (2/3) ... [2023-11-06 22:59:02,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66744657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:59:02, skipping insertion in model container [2023-11-06 22:59:02,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:02" (3/3) ... [2023-11-06 22:59:02,622 INFO L112 eAbstractionObserver]: Analyzing ICFG printf-1.i [2023-11-06 22:59:02,641 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:59:02,641 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 52 error locations. [2023-11-06 22:59:02,705 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:59:02,711 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=LoopsAndPotentialCycles, 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;@17cfe25c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:59:02,712 INFO L358 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2023-11-06 22:59:02,719 INFO L276 IsEmpty]: Start isEmpty. Operand has 494 states, 374 states have (on average 1.6122994652406417) internal successors, (603), 441 states have internal predecessors, (603), 53 states have call successors, (53), 14 states have call predecessors, (53), 14 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-11-06 22:59:02,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-06 22:59:02,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:02,726 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-06 22:59:02,727 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:02,734 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:02,735 INFO L85 PathProgramCache]: Analyzing trace with hash 28415877, now seen corresponding path program 1 times [2023-11-06 22:59:02,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:02,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223029040] [2023-11-06 22:59:02,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:02,752 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:02,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:02,764 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:02,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 22:59:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:03,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:59:03,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:03,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:59:03,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:03,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:03,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223029040] [2023-11-06 22:59:03,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [223029040] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:03,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:03,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:59:03,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486288623] [2023-11-06 22:59:03,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:03,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:59:03,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:03,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:59:03,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:59:03,284 INFO L87 Difference]: Start difference. First operand has 494 states, 374 states have (on average 1.6122994652406417) internal successors, (603), 441 states have internal predecessors, (603), 53 states have call successors, (53), 14 states have call predecessors, (53), 14 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:03,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:03,396 INFO L93 Difference]: Finished difference Result 954 states and 1429 transitions. [2023-11-06 22:59:03,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:59:03,398 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-06 22:59:03,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:03,418 INFO L225 Difference]: With dead ends: 954 [2023-11-06 22:59:03,418 INFO L226 Difference]: Without dead ends: 446 [2023-11-06 22:59:03,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:59:03,434 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:03,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:59:03,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2023-11-06 22:59:03,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2023-11-06 22:59:03,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 367 states have (on average 1.4332425068119892) internal successors, (526), 395 states have internal predecessors, (526), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:59:03,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 603 transitions. [2023-11-06 22:59:03,579 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 603 transitions. Word has length 4 [2023-11-06 22:59:03,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:03,579 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 603 transitions. [2023-11-06 22:59:03,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:59:03,580 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 603 transitions. [2023-11-06 22:59:03,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 22:59:03,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:03,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:59:03,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:03,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:03,807 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:03,808 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:03,808 INFO L85 PathProgramCache]: Analyzing trace with hash 880893125, now seen corresponding path program 1 times [2023-11-06 22:59:03,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:03,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333535098] [2023-11-06 22:59:03,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:03,812 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:03,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:03,818 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:03,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 22:59:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:04,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:59:04,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:04,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:59:04,248 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:04,248 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:04,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333535098] [2023-11-06 22:59:04,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333535098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:04,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:04,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:59:04,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993144304] [2023-11-06 22:59:04,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:04,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:59:04,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:04,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:59:04,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:59:04,253 INFO L87 Difference]: Start difference. First operand 446 states and 603 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-06 22:59:04,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:04,389 INFO L93 Difference]: Finished difference Result 890 states and 1204 transitions. [2023-11-06 22:59:04,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:59:04,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2023-11-06 22:59:04,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:04,399 INFO L225 Difference]: With dead ends: 890 [2023-11-06 22:59:04,399 INFO L226 Difference]: Without dead ends: 449 [2023-11-06 22:59:04,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:59:04,405 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 0 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:04,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1196 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:59:04,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-11-06 22:59:04,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2023-11-06 22:59:04,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 370 states have (on average 1.4297297297297298) internal successors, (529), 398 states have internal predecessors, (529), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:59:04,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 606 transitions. [2023-11-06 22:59:04,445 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 606 transitions. Word has length 5 [2023-11-06 22:59:04,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:04,446 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 606 transitions. [2023-11-06 22:59:04,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-06 22:59:04,446 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 606 transitions. [2023-11-06 22:59:04,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 22:59:04,447 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:04,447 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-11-06 22:59:04,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:04,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:04,652 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:04,653 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:04,653 INFO L85 PathProgramCache]: Analyzing trace with hash 437834882, now seen corresponding path program 1 times [2023-11-06 22:59:04,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:04,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904863766] [2023-11-06 22:59:04,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:04,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:04,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:04,655 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:04,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-06 22:59:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:05,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:59:05,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:05,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:59:05,105 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:59:05,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:59:05,193 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:05,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904863766] [2023-11-06 22:59:05,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904863766] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:59:05,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:59:05,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-06 22:59:05,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850876292] [2023-11-06 22:59:05,194 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:59:05,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:59:05,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:05,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:59:05,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:59:05,196 INFO L87 Difference]: Start difference. First operand 449 states and 606 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2023-11-06 22:59:05,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:05,409 INFO L93 Difference]: Finished difference Result 894 states and 1210 transitions. [2023-11-06 22:59:05,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:59:05,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 8 [2023-11-06 22:59:05,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:05,414 INFO L225 Difference]: With dead ends: 894 [2023-11-06 22:59:05,415 INFO L226 Difference]: Without dead ends: 453 [2023-11-06 22:59:05,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:59:05,418 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 3 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:05,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1790 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:59:05,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2023-11-06 22:59:05,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 449. [2023-11-06 22:59:05,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 371 states have (on average 1.4258760107816713) internal successors, (529), 398 states have internal predecessors, (529), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:59:05,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 606 transitions. [2023-11-06 22:59:05,438 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 606 transitions. Word has length 8 [2023-11-06 22:59:05,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:05,439 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 606 transitions. [2023-11-06 22:59:05,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2023-11-06 22:59:05,439 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 606 transitions. [2023-11-06 22:59:05,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-06 22:59:05,440 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:05,440 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:05,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:05,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:05,665 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:05,666 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:05,666 INFO L85 PathProgramCache]: Analyzing trace with hash -454011323, now seen corresponding path program 1 times [2023-11-06 22:59:05,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:05,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320017233] [2023-11-06 22:59:05,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:05,668 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:05,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:05,669 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:05,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-06 22:59:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:06,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:59:06,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:06,131 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:59:06,131 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:59:06,266 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:59:06,266 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:06,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320017233] [2023-11-06 22:59:06,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320017233] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:59:06,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:59:06,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-06 22:59:06,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664573785] [2023-11-06 22:59:06,267 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:59:06,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:59:06,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:06,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:59:06,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:59:06,270 INFO L87 Difference]: Start difference. First operand 449 states and 606 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:59:06,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:06,622 INFO L93 Difference]: Finished difference Result 901 states and 1218 transitions. [2023-11-06 22:59:06,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:59:06,626 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2023-11-06 22:59:06,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:06,629 INFO L225 Difference]: With dead ends: 901 [2023-11-06 22:59:06,630 INFO L226 Difference]: Without dead ends: 461 [2023-11-06 22:59:06,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:59:06,633 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 10 mSDsluCounter, 2384 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:06,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2983 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:59:06,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2023-11-06 22:59:06,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 461. [2023-11-06 22:59:06,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 383 states have (on average 1.412532637075718) internal successors, (541), 410 states have internal predecessors, (541), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:59:06,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 618 transitions. [2023-11-06 22:59:06,654 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 618 transitions. Word has length 17 [2023-11-06 22:59:06,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:06,654 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 618 transitions. [2023-11-06 22:59:06,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:59:06,655 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 618 transitions. [2023-11-06 22:59:06,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-06 22:59:06,656 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:06,656 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:06,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:06,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:06,879 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:06,879 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:06,880 INFO L85 PathProgramCache]: Analyzing trace with hash -260365307, now seen corresponding path program 2 times [2023-11-06 22:59:06,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:06,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897497402] [2023-11-06 22:59:06,881 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:59:06,881 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:06,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:06,884 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:06,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-06 22:59:07,296 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:59:07,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:59:07,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:59:07,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:07,413 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-06 22:59:07,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:07,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:07,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897497402] [2023-11-06 22:59:07,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [897497402] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:07,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:07,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:59:07,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325128942] [2023-11-06 22:59:07,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:07,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:59:07,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:07,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:59:07,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:59:07,416 INFO L87 Difference]: Start difference. First operand 461 states and 618 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:07,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:07,851 INFO L93 Difference]: Finished difference Result 461 states and 618 transitions. [2023-11-06 22:59:07,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:59:07,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2023-11-06 22:59:07,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:07,859 INFO L225 Difference]: With dead ends: 461 [2023-11-06 22:59:07,859 INFO L226 Difference]: Without dead ends: 459 [2023-11-06 22:59:07,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:59:07,862 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 149 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 2184 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:07,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 2184 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:59:07,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2023-11-06 22:59:07,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2023-11-06 22:59:07,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 383 states have (on average 1.4073107049608355) internal successors, (539), 408 states have internal predecessors, (539), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:59:07,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 616 transitions. [2023-11-06 22:59:07,889 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 616 transitions. Word has length 29 [2023-11-06 22:59:07,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:07,891 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 616 transitions. [2023-11-06 22:59:07,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:07,891 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 616 transitions. [2023-11-06 22:59:07,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-06 22:59:07,893 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:07,893 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:07,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:08,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:08,112 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:08,112 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:08,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1519532305, now seen corresponding path program 1 times [2023-11-06 22:59:08,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:08,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1061355804] [2023-11-06 22:59:08,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:08,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:08,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:08,115 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:08,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-06 22:59:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:08,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:59:08,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:08,862 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:59:08,862 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:59:09,305 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:59:09,306 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:09,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1061355804] [2023-11-06 22:59:09,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1061355804] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:59:09,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:59:09,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-06 22:59:09,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115657382] [2023-11-06 22:59:09,307 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:59:09,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-06 22:59:09,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:09,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-06 22:59:09,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:59:09,308 INFO L87 Difference]: Start difference. First operand 459 states and 616 transitions. Second operand has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:59:10,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:10,196 INFO L93 Difference]: Finished difference Result 909 states and 1226 transitions. [2023-11-06 22:59:10,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:59:10,200 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2023-11-06 22:59:10,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:10,203 INFO L225 Difference]: With dead ends: 909 [2023-11-06 22:59:10,203 INFO L226 Difference]: Without dead ends: 471 [2023-11-06 22:59:10,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:59:10,206 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 10 mSDsluCounter, 4752 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5349 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:10,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5349 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 22:59:10,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-11-06 22:59:10,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2023-11-06 22:59:10,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 395 states have (on average 1.3949367088607596) internal successors, (551), 420 states have internal predecessors, (551), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:59:10,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 628 transitions. [2023-11-06 22:59:10,228 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 628 transitions. Word has length 35 [2023-11-06 22:59:10,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:10,229 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 628 transitions. [2023-11-06 22:59:10,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:59:10,229 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 628 transitions. [2023-11-06 22:59:10,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-06 22:59:10,231 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:10,231 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:10,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:10,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:10,449 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:10,450 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:10,450 INFO L85 PathProgramCache]: Analyzing trace with hash 128784081, now seen corresponding path program 2 times [2023-11-06 22:59:10,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:10,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692575504] [2023-11-06 22:59:10,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:59:10,451 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:10,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:10,456 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:10,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-06 22:59:10,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:59:10,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:59:10,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:59:10,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:10,985 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:59:10,986 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:10,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:10,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692575504] [2023-11-06 22:59:10,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1692575504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:10,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:10,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:59:10,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342606827] [2023-11-06 22:59:10,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:10,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:59:10,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:10,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:59:10,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:59:10,989 INFO L87 Difference]: Start difference. First operand 471 states and 628 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:11,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:11,099 INFO L93 Difference]: Finished difference Result 906 states and 1220 transitions. [2023-11-06 22:59:11,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:59:11,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 47 [2023-11-06 22:59:11,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:11,103 INFO L225 Difference]: With dead ends: 906 [2023-11-06 22:59:11,104 INFO L226 Difference]: Without dead ends: 474 [2023-11-06 22:59:11,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:59:11,106 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 0 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:11,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1189 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:59:11,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2023-11-06 22:59:11,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2023-11-06 22:59:11,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 398 states have (on average 1.3919597989949748) internal successors, (554), 423 states have internal predecessors, (554), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:59:11,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 631 transitions. [2023-11-06 22:59:11,130 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 631 transitions. Word has length 47 [2023-11-06 22:59:11,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:11,131 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 631 transitions. [2023-11-06 22:59:11,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:11,131 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 631 transitions. [2023-11-06 22:59:11,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 22:59:11,132 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:11,133 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:11,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:11,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:11,352 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:11,352 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:11,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1201722072, now seen corresponding path program 1 times [2023-11-06 22:59:11,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:11,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1085468754] [2023-11-06 22:59:11,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:11,353 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:11,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:11,355 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:11,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-06 22:59:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:11,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:59:11,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:11,935 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:59:11,936 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:59:12,026 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:59:12,026 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:12,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1085468754] [2023-11-06 22:59:12,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1085468754] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:59:12,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:59:12,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-06 22:59:12,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440370337] [2023-11-06 22:59:12,027 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:59:12,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:59:12,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:12,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:59:12,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:59:12,029 INFO L87 Difference]: Start difference. First operand 474 states and 631 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:12,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:12,322 INFO L93 Difference]: Finished difference Result 913 states and 1229 transitions. [2023-11-06 22:59:12,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:59:12,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2023-11-06 22:59:12,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:12,328 INFO L225 Difference]: With dead ends: 913 [2023-11-06 22:59:12,329 INFO L226 Difference]: Without dead ends: 478 [2023-11-06 22:59:12,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:59:12,331 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 3 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:12,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1779 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:59:12,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2023-11-06 22:59:12,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 474. [2023-11-06 22:59:12,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 399 states have (on average 1.3884711779448622) internal successors, (554), 423 states have internal predecessors, (554), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:59:12,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 631 transitions. [2023-11-06 22:59:12,355 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 631 transitions. Word has length 50 [2023-11-06 22:59:12,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:12,356 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 631 transitions. [2023-11-06 22:59:12,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:12,356 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 631 transitions. [2023-11-06 22:59:12,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-06 22:59:12,357 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:12,358 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:12,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:12,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:12,576 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:12,577 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:12,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1145546550, now seen corresponding path program 1 times [2023-11-06 22:59:12,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:12,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054037663] [2023-11-06 22:59:12,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:12,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:12,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:12,580 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:12,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-06 22:59:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:59:13,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:13,082 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:59:13,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:13,083 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:13,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054037663] [2023-11-06 22:59:13,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054037663] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:13,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:13,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:59:13,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529130202] [2023-11-06 22:59:13,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:13,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:59:13,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:13,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:59:13,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:59:13,086 INFO L87 Difference]: Start difference. First operand 474 states and 631 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:13,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:13,210 INFO L93 Difference]: Finished difference Result 581 states and 786 transitions. [2023-11-06 22:59:13,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:59:13,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2023-11-06 22:59:13,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:13,215 INFO L225 Difference]: With dead ends: 581 [2023-11-06 22:59:13,216 INFO L226 Difference]: Without dead ends: 576 [2023-11-06 22:59:13,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:59:13,217 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 250 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:13,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 1786 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:59:13,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2023-11-06 22:59:13,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 476. [2023-11-06 22:59:13,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 401 states have (on average 1.3865336658354115) internal successors, (556), 425 states have internal predecessors, (556), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:59:13,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 633 transitions. [2023-11-06 22:59:13,243 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 633 transitions. Word has length 52 [2023-11-06 22:59:13,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:13,244 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 633 transitions. [2023-11-06 22:59:13,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:13,244 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 633 transitions. [2023-11-06 22:59:13,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-06 22:59:13,245 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:13,245 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:13,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:13,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:13,460 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:13,461 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:13,461 INFO L85 PathProgramCache]: Analyzing trace with hash 345053989, now seen corresponding path program 1 times [2023-11-06 22:59:13,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:13,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961996231] [2023-11-06 22:59:13,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:13,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:13,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:13,463 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:13,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-06 22:59:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:14,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:59:14,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:14,124 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:59:14,124 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:59:14,259 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:59:14,259 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:14,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961996231] [2023-11-06 22:59:14,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [961996231] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:59:14,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:59:14,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-06 22:59:14,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639192410] [2023-11-06 22:59:14,260 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:59:14,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:59:14,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:14,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:59:14,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:59:14,261 INFO L87 Difference]: Start difference. First operand 476 states and 633 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:14,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:14,691 INFO L93 Difference]: Finished difference Result 925 states and 1241 transitions. [2023-11-06 22:59:14,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:59:14,692 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2023-11-06 22:59:14,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:14,696 INFO L225 Difference]: With dead ends: 925 [2023-11-06 22:59:14,696 INFO L226 Difference]: Without dead ends: 488 [2023-11-06 22:59:14,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:59:14,699 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 10 mSDsluCounter, 1776 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2372 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:14,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2372 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:59:14,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2023-11-06 22:59:14,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2023-11-06 22:59:14,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 413 states have (on average 1.3753026634382566) internal successors, (568), 437 states have internal predecessors, (568), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:59:14,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 645 transitions. [2023-11-06 22:59:14,724 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 645 transitions. Word has length 54 [2023-11-06 22:59:14,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:14,729 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 645 transitions. [2023-11-06 22:59:14,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:14,730 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 645 transitions. [2023-11-06 22:59:14,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-06 22:59:14,731 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:14,731 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:14,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:14,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:14,941 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:14,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:14,942 INFO L85 PathProgramCache]: Analyzing trace with hash 2062041589, now seen corresponding path program 1 times [2023-11-06 22:59:14,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:14,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1306006178] [2023-11-06 22:59:14,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:14,943 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:14,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:14,945 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:14,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-06 22:59:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:15,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:59:15,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:15,455 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:59:15,455 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:15,455 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:15,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1306006178] [2023-11-06 22:59:15,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1306006178] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:15,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:15,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:59:15,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640082364] [2023-11-06 22:59:15,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:15,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:59:15,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:15,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:59:15,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:59:15,457 INFO L87 Difference]: Start difference. First operand 488 states and 645 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:15,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:15,518 INFO L93 Difference]: Finished difference Result 492 states and 649 transitions. [2023-11-06 22:59:15,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:59:15,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2023-11-06 22:59:15,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:15,523 INFO L225 Difference]: With dead ends: 492 [2023-11-06 22:59:15,523 INFO L226 Difference]: Without dead ends: 491 [2023-11-06 22:59:15,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:59:15,524 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 0 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:15,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1189 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:59:15,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2023-11-06 22:59:15,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2023-11-06 22:59:15,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 416 states have (on average 1.3725961538461537) internal successors, (571), 440 states have internal predecessors, (571), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:59:15,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 648 transitions. [2023-11-06 22:59:15,549 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 648 transitions. Word has length 56 [2023-11-06 22:59:15,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:15,550 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 648 transitions. [2023-11-06 22:59:15,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:15,550 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 648 transitions. [2023-11-06 22:59:15,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-06 22:59:15,551 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:15,551 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:59:15,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:15,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:15,771 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:15,771 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:15,771 INFO L85 PathProgramCache]: Analyzing trace with hash -634893302, now seen corresponding path program 1 times [2023-11-06 22:59:15,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:15,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812286700] [2023-11-06 22:59:15,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:15,773 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:15,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:15,774 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:15,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-06 22:59:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:16,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:59:16,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:16,348 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:59:16,348 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:59:16,425 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:59:16,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:16,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1812286700] [2023-11-06 22:59:16,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1812286700] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:59:16,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:59:16,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-06 22:59:16,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817976036] [2023-11-06 22:59:16,426 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:59:16,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:59:16,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:16,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:59:16,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:59:16,427 INFO L87 Difference]: Start difference. First operand 491 states and 648 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:16,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:16,582 INFO L93 Difference]: Finished difference Result 498 states and 657 transitions. [2023-11-06 22:59:16,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:59:16,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2023-11-06 22:59:16,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:16,586 INFO L225 Difference]: With dead ends: 498 [2023-11-06 22:59:16,587 INFO L226 Difference]: Without dead ends: 479 [2023-11-06 22:59:16,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:59:16,588 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 0 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2967 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:16,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2967 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:59:16,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2023-11-06 22:59:16,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 477. [2023-11-06 22:59:16,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 403 states have (on average 1.3722084367245657) internal successors, (553), 427 states have internal predecessors, (553), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-06 22:59:16,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 629 transitions. [2023-11-06 22:59:16,611 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 629 transitions. Word has length 59 [2023-11-06 22:59:16,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:16,612 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 629 transitions. [2023-11-06 22:59:16,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:16,612 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 629 transitions. [2023-11-06 22:59:16,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-06 22:59:16,613 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:16,613 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:16,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:16,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:16,831 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:16,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:16,832 INFO L85 PathProgramCache]: Analyzing trace with hash -13048094, now seen corresponding path program 1 times [2023-11-06 22:59:16,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:16,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2130274237] [2023-11-06 22:59:16,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:16,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:16,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:16,834 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:16,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-06 22:59:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:17,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:59:17,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:17,470 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:59:17,470 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:17,470 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:17,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2130274237] [2023-11-06 22:59:17,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2130274237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:17,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:17,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:59:17,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989577637] [2023-11-06 22:59:17,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:17,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:59:17,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:17,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:59:17,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:59:17,472 INFO L87 Difference]: Start difference. First operand 477 states and 629 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:17,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:17,719 INFO L93 Difference]: Finished difference Result 689 states and 886 transitions. [2023-11-06 22:59:17,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:59:17,719 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2023-11-06 22:59:17,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:17,723 INFO L225 Difference]: With dead ends: 689 [2023-11-06 22:59:17,724 INFO L226 Difference]: Without dead ends: 570 [2023-11-06 22:59:17,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:59:17,725 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 227 mSDsluCounter, 2350 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2947 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:17,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 2947 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:59:17,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2023-11-06 22:59:17,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 549. [2023-11-06 22:59:17,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 469 states have (on average 1.3901918976545842) internal successors, (652), 492 states have internal predecessors, (652), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:59:17,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 739 transitions. [2023-11-06 22:59:17,754 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 739 transitions. Word has length 64 [2023-11-06 22:59:17,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:17,754 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 739 transitions. [2023-11-06 22:59:17,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:17,755 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 739 transitions. [2023-11-06 22:59:17,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-06 22:59:17,756 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:17,756 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:17,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:17,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:17,978 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:17,978 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:17,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1761959268, now seen corresponding path program 1 times [2023-11-06 22:59:17,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:17,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [996732405] [2023-11-06 22:59:17,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:17,979 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:17,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:17,980 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:17,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-06 22:59:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:18,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:59:18,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:18,669 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:59:18,669 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:18,669 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:18,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [996732405] [2023-11-06 22:59:18,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [996732405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:18,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:18,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:59:18,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572851213] [2023-11-06 22:59:18,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:18,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:59:18,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:18,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:59:18,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:59:18,671 INFO L87 Difference]: Start difference. First operand 549 states and 739 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:18,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:18,751 INFO L93 Difference]: Finished difference Result 564 states and 761 transitions. [2023-11-06 22:59:18,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:59:18,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2023-11-06 22:59:18,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:18,756 INFO L225 Difference]: With dead ends: 564 [2023-11-06 22:59:18,756 INFO L226 Difference]: Without dead ends: 563 [2023-11-06 22:59:18,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:59:18,757 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 3 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:18,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1157 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:59:18,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2023-11-06 22:59:18,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 557. [2023-11-06 22:59:18,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 477 states have (on average 1.3920335429769393) internal successors, (664), 500 states have internal predecessors, (664), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:59:18,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 751 transitions. [2023-11-06 22:59:18,810 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 751 transitions. Word has length 64 [2023-11-06 22:59:18,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:18,811 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 751 transitions. [2023-11-06 22:59:18,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:18,812 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 751 transitions. [2023-11-06 22:59:18,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-06 22:59:18,812 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:18,813 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:18,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:19,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:19,028 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:19,029 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:19,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1255855951, now seen corresponding path program 1 times [2023-11-06 22:59:19,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:19,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516494676] [2023-11-06 22:59:19,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:19,030 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:19,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:19,031 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:19,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-06 22:59:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:59:19,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:19,615 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:59:19,615 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:19,615 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:19,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516494676] [2023-11-06 22:59:19,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516494676] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:19,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:19,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:59:19,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903177874] [2023-11-06 22:59:19,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:19,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:59:19,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:19,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:59:19,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:59:19,617 INFO L87 Difference]: Start difference. First operand 557 states and 751 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:19,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:19,910 INFO L93 Difference]: Finished difference Result 1024 states and 1406 transitions. [2023-11-06 22:59:19,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:59:19,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2023-11-06 22:59:19,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:19,917 INFO L225 Difference]: With dead ends: 1024 [2023-11-06 22:59:19,918 INFO L226 Difference]: Without dead ends: 561 [2023-11-06 22:59:19,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:59:19,921 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 5 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:19,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1709 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:59:19,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-11-06 22:59:19,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 559. [2023-11-06 22:59:19,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 479 states have (on average 1.3883089770354906) internal successors, (665), 502 states have internal predecessors, (665), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:59:19,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 752 transitions. [2023-11-06 22:59:19,953 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 752 transitions. Word has length 65 [2023-11-06 22:59:19,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:19,954 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 752 transitions. [2023-11-06 22:59:19,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:19,954 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 752 transitions. [2023-11-06 22:59:19,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-06 22:59:19,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:19,956 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:19,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:20,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:20,172 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:20,173 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:20,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1891814885, now seen corresponding path program 2 times [2023-11-06 22:59:20,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:20,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [438489067] [2023-11-06 22:59:20,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:59:20,174 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:20,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:20,175 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:20,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-06 22:59:20,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:59:20,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:59:20,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:59:20,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:20,782 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2023-11-06 22:59:20,783 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:20,783 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:20,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [438489067] [2023-11-06 22:59:20,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [438489067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:20,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:20,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:59:20,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93106514] [2023-11-06 22:59:20,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:20,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:59:20,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:20,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:59:20,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:59:20,786 INFO L87 Difference]: Start difference. First operand 559 states and 752 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:21,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:21,035 INFO L93 Difference]: Finished difference Result 584 states and 779 transitions. [2023-11-06 22:59:21,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:59:21,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2023-11-06 22:59:21,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:21,040 INFO L225 Difference]: With dead ends: 584 [2023-11-06 22:59:21,040 INFO L226 Difference]: Without dead ends: 583 [2023-11-06 22:59:21,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:59:21,042 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 1 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:21,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1156 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:59:21,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-11-06 22:59:21,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 582. [2023-11-06 22:59:21,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 502 states have (on average 1.3745019920318724) internal successors, (690), 525 states have internal predecessors, (690), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:59:21,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 777 transitions. [2023-11-06 22:59:21,075 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 777 transitions. Word has length 66 [2023-11-06 22:59:21,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:21,075 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 777 transitions. [2023-11-06 22:59:21,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:21,076 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 777 transitions. [2023-11-06 22:59:21,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-06 22:59:21,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:21,077 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:59:21,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:21,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:21,292 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:21,293 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:21,293 INFO L85 PathProgramCache]: Analyzing trace with hash -2082104117, now seen corresponding path program 1 times [2023-11-06 22:59:21,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:21,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069773399] [2023-11-06 22:59:21,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:21,294 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:21,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:21,295 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:21,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-06 22:59:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:21,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:59:21,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:22,016 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:59:22,016 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:59:22,109 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:59:22,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:22,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069773399] [2023-11-06 22:59:22,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069773399] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:59:22,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:59:22,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-06 22:59:22,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442270717] [2023-11-06 22:59:22,111 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:59:22,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:59:22,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:22,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:59:22,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:59:22,113 INFO L87 Difference]: Start difference. First operand 582 states and 777 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:22,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:22,363 INFO L93 Difference]: Finished difference Result 624 states and 841 transitions. [2023-11-06 22:59:22,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:59:22,365 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2023-11-06 22:59:22,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:22,370 INFO L225 Difference]: With dead ends: 624 [2023-11-06 22:59:22,370 INFO L226 Difference]: Without dead ends: 623 [2023-11-06 22:59:22,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:59:22,371 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 18 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2318 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:22,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2318 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:59:22,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2023-11-06 22:59:22,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 573. [2023-11-06 22:59:22,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 494 states have (on average 1.368421052631579) internal successors, (676), 516 states have internal predecessors, (676), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:59:22,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 763 transitions. [2023-11-06 22:59:22,403 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 763 transitions. Word has length 68 [2023-11-06 22:59:22,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:22,404 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 763 transitions. [2023-11-06 22:59:22,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:22,404 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 763 transitions. [2023-11-06 22:59:22,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-06 22:59:22,405 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:22,405 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:59:22,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:22,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:22,621 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:22,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:22,621 INFO L85 PathProgramCache]: Analyzing trace with hash 578588843, now seen corresponding path program 1 times [2023-11-06 22:59:22,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:22,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41711645] [2023-11-06 22:59:22,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:22,622 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:22,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:22,624 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:22,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-11-06 22:59:23,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:23,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:59:23,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:23,290 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-06 22:59:23,290 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:23,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:23,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41711645] [2023-11-06 22:59:23,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41711645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:23,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:23,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:59:23,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002806914] [2023-11-06 22:59:23,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:23,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:59:23,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:23,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:59:23,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:59:23,292 INFO L87 Difference]: Start difference. First operand 573 states and 763 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:59:23,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:23,461 INFO L93 Difference]: Finished difference Result 1036 states and 1413 transitions. [2023-11-06 22:59:23,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:59:23,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 72 [2023-11-06 22:59:23,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:23,467 INFO L225 Difference]: With dead ends: 1036 [2023-11-06 22:59:23,467 INFO L226 Difference]: Without dead ends: 573 [2023-11-06 22:59:23,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:59:23,470 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 2 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:23,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2295 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:59:23,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2023-11-06 22:59:23,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2023-11-06 22:59:23,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 494 states have (on average 1.3643724696356276) internal successors, (674), 516 states have internal predecessors, (674), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:59:23,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 761 transitions. [2023-11-06 22:59:23,498 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 761 transitions. Word has length 72 [2023-11-06 22:59:23,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:23,498 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 761 transitions. [2023-11-06 22:59:23,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:59:23,499 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 761 transitions. [2023-11-06 22:59:23,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-06 22:59:23,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:23,500 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:59:23,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:23,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:23,718 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:23,718 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:23,718 INFO L85 PathProgramCache]: Analyzing trace with hash 19867011, now seen corresponding path program 1 times [2023-11-06 22:59:23,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:23,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364179318] [2023-11-06 22:59:23,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:23,719 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:23,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:23,720 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:23,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-11-06 22:59:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:24,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:59:24,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:24,509 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-06 22:59:24,509 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:24,509 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:24,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364179318] [2023-11-06 22:59:24,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364179318] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:24,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:24,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:59:24,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863223730] [2023-11-06 22:59:24,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:24,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:59:24,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:24,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:59:24,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:59:24,511 INFO L87 Difference]: Start difference. First operand 573 states and 761 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:59:24,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:24,614 INFO L93 Difference]: Finished difference Result 1006 states and 1369 transitions. [2023-11-06 22:59:24,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:59:24,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 73 [2023-11-06 22:59:24,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:24,619 INFO L225 Difference]: With dead ends: 1006 [2023-11-06 22:59:24,619 INFO L226 Difference]: Without dead ends: 549 [2023-11-06 22:59:24,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:59:24,623 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 180 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:24,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 1489 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:59:24,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2023-11-06 22:59:24,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2023-11-06 22:59:24,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 476 states have (on average 1.3487394957983194) internal successors, (642), 494 states have internal predecessors, (642), 43 states have call successors, (43), 15 states have call predecessors, (43), 13 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-06 22:59:24,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 725 transitions. [2023-11-06 22:59:24,654 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 725 transitions. Word has length 73 [2023-11-06 22:59:24,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:24,655 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 725 transitions. [2023-11-06 22:59:24,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:59:24,655 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 725 transitions. [2023-11-06 22:59:24,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-06 22:59:24,656 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:24,657 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:59:24,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:24,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:24,871 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:24,871 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:24,872 INFO L85 PathProgramCache]: Analyzing trace with hash 19868933, now seen corresponding path program 1 times [2023-11-06 22:59:24,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:24,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1538806288] [2023-11-06 22:59:24,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:24,873 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:24,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:24,875 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:24,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-11-06 22:59:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:25,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:59:25,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:25,563 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-06 22:59:25,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:25,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:25,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1538806288] [2023-11-06 22:59:25,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1538806288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:25,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:25,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:59:25,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921687277] [2023-11-06 22:59:25,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:25,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:59:25,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:25,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:59:25,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:59:25,566 INFO L87 Difference]: Start difference. First operand 549 states and 725 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:59:26,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:26,095 INFO L93 Difference]: Finished difference Result 1065 states and 1437 transitions. [2023-11-06 22:59:26,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:59:26,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 73 [2023-11-06 22:59:26,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:26,100 INFO L225 Difference]: With dead ends: 1065 [2023-11-06 22:59:26,100 INFO L226 Difference]: Without dead ends: 678 [2023-11-06 22:59:26,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:59:26,103 INFO L413 NwaCegarLoop]: 564 mSDtfsCounter, 103 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 2231 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:26,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 2231 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:59:26,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2023-11-06 22:59:26,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 601. [2023-11-06 22:59:26,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 526 states have (on average 1.3536121673003803) internal successors, (712), 544 states have internal predecessors, (712), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:59:26,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 799 transitions. [2023-11-06 22:59:26,141 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 799 transitions. Word has length 73 [2023-11-06 22:59:26,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:26,141 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 799 transitions. [2023-11-06 22:59:26,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:59:26,142 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 799 transitions. [2023-11-06 22:59:26,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-06 22:59:26,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:26,143 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:59:26,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:26,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:26,356 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting bb_verror_msgErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:26,357 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:26,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1914199687, now seen corresponding path program 1 times [2023-11-06 22:59:26,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:26,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141156123] [2023-11-06 22:59:26,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:26,358 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:26,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:26,359 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:26,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-11-06 22:59:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:26,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:59:26,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:27,033 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-06 22:59:27,034 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:27,034 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:27,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141156123] [2023-11-06 22:59:27,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141156123] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:27,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:27,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:59:27,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107096734] [2023-11-06 22:59:27,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:27,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:59:27,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:27,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:59:27,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:59:27,038 INFO L87 Difference]: Start difference. First operand 601 states and 799 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:59:27,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:27,182 INFO L93 Difference]: Finished difference Result 603 states and 801 transitions. [2023-11-06 22:59:27,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:59:27,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2023-11-06 22:59:27,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:27,188 INFO L225 Difference]: With dead ends: 603 [2023-11-06 22:59:27,189 INFO L226 Difference]: Without dead ends: 601 [2023-11-06 22:59:27,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:59:27,190 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 147 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:27,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1526 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:59:27,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2023-11-06 22:59:27,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 599. [2023-11-06 22:59:27,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 526 states have (on average 1.338403041825095) internal successors, (704), 542 states have internal predecessors, (704), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:59:27,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 791 transitions. [2023-11-06 22:59:27,233 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 791 transitions. Word has length 75 [2023-11-06 22:59:27,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:27,234 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 791 transitions. [2023-11-06 22:59:27,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:59:27,234 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 791 transitions. [2023-11-06 22:59:27,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-06 22:59:27,236 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:27,236 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:59:27,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:27,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:27,452 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting bb_verror_msgErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:27,452 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:27,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1299920905, now seen corresponding path program 1 times [2023-11-06 22:59:27,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:27,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264662532] [2023-11-06 22:59:27,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:27,454 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:27,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:27,455 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:27,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-11-06 22:59:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:28,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:59:28,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:28,251 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:59:28,251 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:28,251 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:28,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264662532] [2023-11-06 22:59:28,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [264662532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:28,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:28,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:59:28,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707227348] [2023-11-06 22:59:28,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:28,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:59:28,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:28,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:59:28,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:59:28,254 INFO L87 Difference]: Start difference. First operand 599 states and 791 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:59:28,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:28,708 INFO L93 Difference]: Finished difference Result 1112 states and 1490 transitions. [2023-11-06 22:59:28,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:59:28,711 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 77 [2023-11-06 22:59:28,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:28,716 INFO L225 Difference]: With dead ends: 1112 [2023-11-06 22:59:28,716 INFO L226 Difference]: Without dead ends: 599 [2023-11-06 22:59:28,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:59:28,719 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 147 mSDsluCounter, 1620 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 2168 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:28,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 2168 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:59:28,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2023-11-06 22:59:28,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2023-11-06 22:59:28,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 526 states have (on average 1.3365019011406845) internal successors, (703), 542 states have internal predecessors, (703), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:59:28,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 790 transitions. [2023-11-06 22:59:28,757 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 790 transitions. Word has length 77 [2023-11-06 22:59:28,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:28,757 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 790 transitions. [2023-11-06 22:59:28,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:59:28,758 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 790 transitions. [2023-11-06 22:59:28,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-06 22:59:28,759 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:28,759 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:28,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:28,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:28,972 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:28,972 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:28,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1060358809, now seen corresponding path program 1 times [2023-11-06 22:59:28,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:28,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085479427] [2023-11-06 22:59:28,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:28,974 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:28,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:28,976 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:29,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-11-06 22:59:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:29,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:59:29,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:29,998 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 122 proven. 51 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-11-06 22:59:29,999 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:59:30,362 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 122 proven. 51 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-11-06 22:59:30,362 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:30,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085479427] [2023-11-06 22:59:30,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085479427] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:59:30,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:59:30,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-06 22:59:30,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118497956] [2023-11-06 22:59:30,363 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:59:30,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-06 22:59:30,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:30,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-06 22:59:30,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:59:30,364 INFO L87 Difference]: Start difference. First operand 599 states and 790 transitions. Second operand has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:31,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:31,619 INFO L93 Difference]: Finished difference Result 1163 states and 1550 transitions. [2023-11-06 22:59:31,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:59:31,624 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2023-11-06 22:59:31,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:31,629 INFO L225 Difference]: With dead ends: 1163 [2023-11-06 22:59:31,629 INFO L226 Difference]: Without dead ends: 623 [2023-11-06 22:59:31,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:59:31,632 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 8 mSDsluCounter, 5004 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5564 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:31,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5564 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-06 22:59:31,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2023-11-06 22:59:31,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 623. [2023-11-06 22:59:31,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 550 states have (on average 1.3218181818181818) internal successors, (727), 566 states have internal predecessors, (727), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:59:31,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 814 transitions. [2023-11-06 22:59:31,674 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 814 transitions. Word has length 89 [2023-11-06 22:59:31,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:31,674 INFO L495 AbstractCegarLoop]: Abstraction has 623 states and 814 transitions. [2023-11-06 22:59:31,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:31,675 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 814 transitions. [2023-11-06 22:59:31,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-06 22:59:31,677 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:31,677 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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] [2023-11-06 22:59:31,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-11-06 22:59:31,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:31,892 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting bb_verror_msgErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-06 22:59:31,892 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:31,893 INFO L85 PathProgramCache]: Analyzing trace with hash -398963193, now seen corresponding path program 1 times [2023-11-06 22:59:31,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:31,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [666902661] [2023-11-06 22:59:31,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:31,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:31,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:31,895 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:31,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-11-06 22:59:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:59:37,515 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:59:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:59:41,887 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-06 22:59:41,888 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:59:41,889 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location bb_verror_msgErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 52 remaining) [2023-11-06 22:59:41,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 52 remaining) [2023-11-06 22:59:41,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 52 remaining) [2023-11-06 22:59:41,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 52 remaining) [2023-11-06 22:59:41,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_ascii_isalnumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 52 remaining) [2023-11-06 22:59:41,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 52 remaining) [2023-11-06 22:59:41,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 52 remaining) [2023-11-06 22:59:41,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 52 remaining) [2023-11-06 22:59:41,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 52 remaining) [2023-11-06 22:59:41,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 52 remaining) [2023-11-06 22:59:41,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 52 remaining) [2023-11-06 22:59:41,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 52 remaining) [2023-11-06 22:59:41,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 52 remaining) [2023-11-06 22:59:41,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 52 remaining) [2023-11-06 22:59:41,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 52 remaining) [2023-11-06 22:59:41,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 52 remaining) [2023-11-06 22:59:41,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 52 remaining) [2023-11-06 22:59:41,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 52 remaining) [2023-11-06 22:59:41,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 52 remaining) [2023-11-06 22:59:41,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 52 remaining) [2023-11-06 22:59:41,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 52 remaining) [2023-11-06 22:59:41,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 52 remaining) [2023-11-06 22:59:41,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 52 remaining) [2023-11-06 22:59:41,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 52 remaining) [2023-11-06 22:59:41,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 52 remaining) [2023-11-06 22:59:41,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 52 remaining) [2023-11-06 22:59:41,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 52 remaining) [2023-11-06 22:59:41,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 52 remaining) [2023-11-06 22:59:41,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 52 remaining) [2023-11-06 22:59:41,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 52 remaining) [2023-11-06 22:59:41,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 52 remaining) [2023-11-06 22:59:41,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 52 remaining) [2023-11-06 22:59:41,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 52 remaining) [2023-11-06 22:59:41,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 52 remaining) [2023-11-06 22:59:41,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 52 remaining) [2023-11-06 22:59:41,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 52 remaining) [2023-11-06 22:59:41,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 52 remaining) [2023-11-06 22:59:41,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 52 remaining) [2023-11-06 22:59:41,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 52 remaining) [2023-11-06 22:59:41,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 52 remaining) [2023-11-06 22:59:41,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 52 remaining) [2023-11-06 22:59:41,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 52 remaining) [2023-11-06 22:59:41,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 52 remaining) [2023-11-06 22:59:41,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 52 remaining) [2023-11-06 22:59:41,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 52 remaining) [2023-11-06 22:59:41,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 52 remaining) [2023-11-06 22:59:41,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 52 remaining) [2023-11-06 22:59:41,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 52 remaining) [2023-11-06 22:59:41,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 52 remaining) [2023-11-06 22:59:41,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 52 remaining) [2023-11-06 22:59:41,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 52 remaining) [2023-11-06 22:59:41,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 52 remaining) [2023-11-06 22:59:41,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:42,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_586afe9f-9197-462f-b795-01ecf91bec90/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:42,133 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:42,138 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:59:42,233 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-06 22:59:42,248 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-06 22:59:42,249 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-06 22:59:42,256 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #varArgs [2023-11-06 22:59:42,256 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expression #varArgs!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-06 22:59:42,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:59:42 BoogieIcfgContainer [2023-11-06 22:59:42,294 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:59:42,295 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:59:42,295 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:59:42,295 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:59:42,296 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:02" (3/4) ... [2023-11-06 22:59:42,298 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:59:42,299 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:59:42,300 INFO L158 Benchmark]: Toolchain (without parser) took 51412.87ms. Allocated memory was 94.4MB in the beginning and 224.4MB in the end (delta: 130.0MB). Free memory was 64.3MB in the beginning and 100.4MB in the end (delta: -36.1MB). Peak memory consumption was 95.6MB. Max. memory is 16.1GB. [2023-11-06 22:59:42,300 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 94.4MB. Free memory was 70.1MB in the beginning and 70.1MB in the end (delta: 82.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:59:42,300 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2748.09ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 64.3MB in the beginning and 68.1MB in the end (delta: -3.8MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2023-11-06 22:59:42,301 INFO L158 Benchmark]: Boogie Procedure Inliner took 205.80ms. Allocated memory is still 123.7MB. Free memory was 68.1MB in the beginning and 56.9MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:59:42,302 INFO L158 Benchmark]: Boogie Preprocessor took 269.69ms. Allocated memory is still 123.7MB. Free memory was 56.9MB in the beginning and 77.6MB in the end (delta: -20.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 22:59:42,302 INFO L158 Benchmark]: RCFGBuilder took 8498.59ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 77.6MB in the beginning and 98.3MB in the end (delta: -20.6MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. [2023-11-06 22:59:42,305 INFO L158 Benchmark]: TraceAbstraction took 39678.15ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 97.2MB in the beginning and 100.4MB in the end (delta: -3.1MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2023-11-06 22:59:42,305 INFO L158 Benchmark]: Witness Printer took 4.20ms. Allocated memory is still 224.4MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:59:42,316 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 94.4MB. Free memory was 70.1MB in the beginning and 70.1MB in the end (delta: 82.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2748.09ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 64.3MB in the beginning and 68.1MB in the end (delta: -3.8MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 205.80ms. Allocated memory is still 123.7MB. Free memory was 68.1MB in the beginning and 56.9MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 269.69ms. Allocated memory is still 123.7MB. Free memory was 56.9MB in the beginning and 77.6MB in the end (delta: -20.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * RCFGBuilder took 8498.59ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 77.6MB in the beginning and 98.3MB in the end (delta: -20.6MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. * TraceAbstraction took 39678.15ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 97.2MB in the beginning and 100.4MB in the end (delta: -3.1MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Witness Printer took 4.20ms. Allocated memory is still 224.4MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #varArgs - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #varArgs!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 2596]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of strlen at line 2593. Possible FailurePath: [L2370] static const char *applet_name; [L2371] static signed int bb_errno_location; [L2372] static signed int * const bb_errno = &bb_errno_location; [L2373] static const char bb_msg_memory_exhausted[14l] = { (const char)111, (const char)117, (const char)116, (const char)32, (const char)111, (const char)102, (const char)32, (const char)109, (const char)101, (const char)109, (const char)111, (const char)114, (const char)121, (const char)0 }; [L2374] static struct __jmp_buf_tag die_jmp[1l]; [L2375] static signed int die_sleep; [L2376] static char local_buf[(signed long int)(sizeof(signed int) * 3) ]; [L2377] static signed char logmode = (signed char)1; [L2378] static const char *msg_eol = "\n"; [L2379] static unsigned char xfunc_error_retval = (unsigned char)1; [L2445] static const char charmap[20l] = { (const char)97, (const char)98, (const char)101, (const char)102, (const char)110, (const char)114, (const char)116, (const char)118, (const char)92, (const char)0, (const char)7, (const char)8, (const char)27, (const char)12, (const char)10, (const char)13, (const char)9, (const char)11, (const char)92, (const char)92 }; [L3133] static const char format_chars[14l] = { (const char)100, (const char)105, (const char)111, (const char)117, (const char)120, (const char)88, (const char)102, (const char)101, (const char)69, (const char)103, (const char)71, (const char)99, (const char)115, (const char)0 }; [L3336] static struct utmp dummy_utmp; VAL [applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3418] char *a = malloc(11); [L3419] a[10] = 0 [L3420] int i=0; VAL [a={-9223372036854775806:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=0, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={-9223372036854775806:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=1, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={-9223372036854775806:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=2, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={-9223372036854775806:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=3, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={-9223372036854775806:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=4, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={-9223372036854775806:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=5, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={-9223372036854775806:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=6, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={-9223372036854775806:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=7, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={-9223372036854775806:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=8, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={-9223372036854775806:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=9, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={-9223372036854775806:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=10, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND FALSE !(i<10) VAL [a={-9223372036854775806:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=10, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3422] applet_name = a [L3423] bb_errno_location = __VERIFIER_nondet_int() [L3424] optind = 1 [L3425] int argc = __VERIFIER_nondet_int(); [L3426] CALL assume_abort_if_not(argc >= 1 && argc <= 10000) VAL [\old(cond)=1, applet_name={-9223372036854775806:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, local_buf={16:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L9] COND FALSE !(!cond) VAL [\old(cond)=1, applet_name={-9223372036854775806:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, cond=1, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, local_buf={16:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L3426] RET assume_abort_if_not(argc >= 1 && argc <= 10000) VAL [a={-9223372036854775806:0}, applet_name={-9223372036854775806:0}, argc=1, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, local_buf={16:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L3427] EXPR argc+1 [L3427] char **argv=malloc((argc+1)*sizeof(char*)); [L3428] EXPR argc+1 [L3428] char **mem_track=malloc((argc+1)*sizeof(char*)); [L3429] argv[argc]=0 [L3430] int i=0; VAL [a={-9223372036854775806:0}, applet_name={-9223372036854775806:0}, argc=1, argv={4611686018427387906:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=0, local_buf={16:0}, logmode=1, mem_track={-9223372036854775808:0}, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L3430] COND TRUE i