./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/fold-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/fold-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 201f380b05f2f2592e2e623b47b2e89fa8ae6bbfe4280f276a262761079e1716 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:07:53,693 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:07:53,810 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-21 22:07:53,822 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:07:53,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:07:53,859 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:07:53,861 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:07:53,862 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:07:53,863 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:07:53,868 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:07:53,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:07:53,870 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:07:53,871 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:07:53,873 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:07:53,873 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:07:53,874 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:07:53,874 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:07:53,874 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:07:53,876 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:07:53,877 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:07:53,877 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:07:53,878 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:07:53,878 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:07:53,879 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:07:53,879 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:07:53,879 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:07:53,880 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:07:53,881 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:07:53,881 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:07:53,882 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:07:53,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:07:53,883 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:07:53,884 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:07:53,884 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:07:53,884 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:07:53,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:07:53,885 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:07:53,885 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:07:53,885 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:07:53,885 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:07:53,886 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:07:53,886 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_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 201f380b05f2f2592e2e623b47b2e89fa8ae6bbfe4280f276a262761079e1716 [2023-11-21 22:07:54,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:07:54,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:07:54,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:07:54,174 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:07:54,175 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:07:54,176 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/busybox-1.22.0/fold-1.i [2023-11-21 22:07:57,390 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:07:57,935 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:07:57,936 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/sv-benchmarks/c/busybox-1.22.0/fold-1.i [2023-11-21 22:07:57,977 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/data/c459916b8/7b3b35a6e9d54d67bd6492f9e6677826/FLAG92bb1f39f [2023-11-21 22:07:57,997 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/data/c459916b8/7b3b35a6e9d54d67bd6492f9e6677826 [2023-11-21 22:07:58,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:07:58,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:07:58,009 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:58,009 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:07:58,014 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:07:58,015 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:57" (1/1) ... [2023-11-21 22:07:58,016 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cd0be95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:58, skipping insertion in model container [2023-11-21 22:07:58,017 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:57" (1/1) ... [2023-11-21 22:07:58,122 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:07:59,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:59,953 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:08:00,267 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:08:00,468 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:08:00,468 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:08:00,468 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:08:00,473 WARN L675 CHandler]: The function ferror is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:08:00,473 WARN L675 CHandler]: The function strstr is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:08:00,474 WARN L675 CHandler]: The function fclose is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:08:00,474 WARN L675 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:08:00,474 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:08:00,475 WARN L675 CHandler]: The function fwrite is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:08:00,475 WARN L675 CHandler]: The function fgetc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:08:00,482 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:08:00,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:00 WrapperNode [2023-11-21 22:08:00,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:08:00,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:08:00,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:08:00,484 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:08:00,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:00" (1/1) ... [2023-11-21 22:08:00,560 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:00" (1/1) ... [2023-11-21 22:08:00,701 INFO L138 Inliner]: procedures = 581, calls = 481, calls flagged for inlining = 28, calls inlined = 26, statements flattened = 1821 [2023-11-21 22:08:00,702 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:08:00,703 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:08:00,703 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:08:00,703 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:08:00,715 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:00" (1/1) ... [2023-11-21 22:08:00,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:00" (1/1) ... [2023-11-21 22:08:00,754 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:00" (1/1) ... [2023-11-21 22:08:00,763 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2023-11-21 22:08:00,764 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:00" (1/1) ... [2023-11-21 22:08:00,768 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:00" (1/1) ... [2023-11-21 22:08:00,834 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:00" (1/1) ... [2023-11-21 22:08:00,852 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:00" (1/1) ... [2023-11-21 22:08:00,871 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:00" (1/1) ... [2023-11-21 22:08:00,884 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:00" (1/1) ... [2023-11-21 22:08:00,908 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:08:00,909 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:08:00,910 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:08:00,910 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:08:00,920 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:00" (1/1) ... [2023-11-21 22:08:00,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:08:00,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:00,958 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:08:00,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:08:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-11-21 22:08:01,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2023-11-21 22:08:01,010 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2023-11-21 22:08:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure vasprintf [2023-11-21 22:08:01,011 INFO L138 BoogieDeclarations]: Found implementation of procedure vasprintf [2023-11-21 22:08:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-21 22:08:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2023-11-21 22:08:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:08:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_column [2023-11-21 22:08:01,012 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_column [2023-11-21 22:08:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 22:08:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-21 22:08:01,014 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-21 22:08:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2023-11-21 22:08:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 22:08:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:08:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:08:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-21 22:08:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:08:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:08:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:08:01,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:08:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-21 22:08:01,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-21 22:08:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write2stdout [2023-11-21 22:08:01,020 INFO L138 BoogieDeclarations]: Found implementation of procedure write2stdout [2023-11-21 22:08:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-21 22:08:01,021 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-21 22:08:01,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 22:08:01,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 22:08:01,021 INFO L130 BoogieDeclarations]: Found specification of procedure bb_simple_perror_msg [2023-11-21 22:08:01,022 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_simple_perror_msg [2023-11-21 22:08:01,022 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-11-21 22:08:01,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 22:08:01,022 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 22:08:01,022 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:08:01,023 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:08:01,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:08:01,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:08:01,023 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2023-11-21 22:08:01,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:08:01,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2023-11-21 22:08:01,024 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2023-11-21 22:08:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2023-11-21 22:08:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure xatou_range [2023-11-21 22:08:01,024 INFO L138 BoogieDeclarations]: Found implementation of procedure xatou_range [2023-11-21 22:08:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:08:01,025 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-21 22:08:01,025 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-21 22:08:01,025 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-21 22:08:01,025 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2023-11-21 22:08:01,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:08:01,637 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:08:01,642 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:08:03,728 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:08:04,799 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:08:04,800 INFO L308 CfgBuilder]: Removed 34 assume(true) statements. [2023-11-21 22:08:04,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:04 BoogieIcfgContainer [2023-11-21 22:08:04,803 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:08:04,807 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:08:04,807 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:08:04,811 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:08:04,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:07:57" (1/3) ... [2023-11-21 22:08:04,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@373aef48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:08:04, skipping insertion in model container [2023-11-21 22:08:04,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:00" (2/3) ... [2023-11-21 22:08:04,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@373aef48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:08:04, skipping insertion in model container [2023-11-21 22:08:04,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:04" (3/3) ... [2023-11-21 22:08:04,820 INFO L112 eAbstractionObserver]: Analyzing ICFG fold-1.i [2023-11-21 22:08:04,847 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:08:04,848 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2023-11-21 22:08:04,948 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:08:04,960 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2cec3eb5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:08:04,960 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2023-11-21 22:08:04,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 452 states, 336 states have (on average 1.6696428571428572) internal successors, (561), 402 states have internal predecessors, (561), 38 states have call successors, (38), 13 states have call predecessors, (38), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-21 22:08:04,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:08:04,984 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:04,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:08:04,986 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:04,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:04,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1946303, now seen corresponding path program 1 times [2023-11-21 22:08:05,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:05,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746541495] [2023-11-21 22:08:05,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:05,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:05,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:05,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:05,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746541495] [2023-11-21 22:08:05,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746541495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:05,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:05,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:08:05,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758379] [2023-11-21 22:08:05,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:05,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:08:05,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:05,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:08:05,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:08:05,664 INFO L87 Difference]: Start difference. First operand has 452 states, 336 states have (on average 1.6696428571428572) internal successors, (561), 402 states have internal predecessors, (561), 38 states have call successors, (38), 13 states have call predecessors, (38), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-21 22:08:06,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:06,237 INFO L93 Difference]: Finished difference Result 889 states and 1273 transitions. [2023-11-21 22:08:06,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:08:06,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2023-11-21 22:08:06,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:06,256 INFO L225 Difference]: With dead ends: 889 [2023-11-21 22:08:06,256 INFO L226 Difference]: Without dead ends: 439 [2023-11-21 22:08:06,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:08:06,269 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 1 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:06,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1000 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 22:08:06,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2023-11-21 22:08:06,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2023-11-21 22:08:06,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 329 states have (on average 1.5775075987841944) internal successors, (519), 397 states have internal predecessors, (519), 36 states have call successors, (36), 13 states have call predecessors, (36), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-21 22:08:06,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 585 transitions. [2023-11-21 22:08:06,364 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 585 transitions. Word has length 3 [2023-11-21 22:08:06,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:06,364 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 585 transitions. [2023-11-21 22:08:06,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-21 22:08:06,365 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 585 transitions. [2023-11-21 22:08:06,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 22:08:06,366 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:06,366 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-21 22:08:06,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:08:06,367 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:06,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:06,368 INFO L85 PathProgramCache]: Analyzing trace with hash -2146828456, now seen corresponding path program 1 times [2023-11-21 22:08:06,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:06,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800414427] [2023-11-21 22:08:06,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:06,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:06,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:06,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:06,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800414427] [2023-11-21 22:08:06,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800414427] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:06,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532547216] [2023-11-21 22:08:06,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:06,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:06,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:06,570 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:06,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:08:06,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:06,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:08:06,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:07,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:07,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:07,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532547216] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:07,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:08:07,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-11-21 22:08:07,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367854654] [2023-11-21 22:08:07,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:07,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:08:07,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:07,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:08:07,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:08:07,022 INFO L87 Difference]: Start difference. First operand 439 states and 585 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:07,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:07,428 INFO L93 Difference]: Finished difference Result 439 states and 585 transitions. [2023-11-21 22:08:07,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:08:07,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-21 22:08:07,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:07,433 INFO L225 Difference]: With dead ends: 439 [2023-11-21 22:08:07,433 INFO L226 Difference]: Without dead ends: 438 [2023-11-21 22:08:07,434 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 [2023-11-21 22:08:07,435 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 2 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1494 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:07,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1494 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-21 22:08:07,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-11-21 22:08:07,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 438. [2023-11-21 22:08:07,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 329 states have (on average 1.574468085106383) internal successors, (518), 396 states have internal predecessors, (518), 36 states have call successors, (36), 13 states have call predecessors, (36), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-21 22:08:07,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 584 transitions. [2023-11-21 22:08:07,480 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 584 transitions. Word has length 6 [2023-11-21 22:08:07,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:07,481 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 584 transitions. [2023-11-21 22:08:07,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:07,481 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 584 transitions. [2023-11-21 22:08:07,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 22:08:07,482 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:07,482 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-21 22:08:07,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:07,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:07,696 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:07,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:07,696 INFO L85 PathProgramCache]: Analyzing trace with hash -2127172292, now seen corresponding path program 1 times [2023-11-21 22:08:07,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:07,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974484073] [2023-11-21 22:08:07,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:07,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:07,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:07,892 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:08:07,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:07,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974484073] [2023-11-21 22:08:07,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974484073] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:07,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:07,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:08:07,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842886162] [2023-11-21 22:08:07,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:07,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:08:07,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:07,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:08:07,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:08:07,902 INFO L87 Difference]: Start difference. First operand 438 states and 584 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2023-11-21 22:08:08,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:08,241 INFO L93 Difference]: Finished difference Result 438 states and 584 transitions. [2023-11-21 22:08:08,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:08:08,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2023-11-21 22:08:08,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:08,246 INFO L225 Difference]: With dead ends: 438 [2023-11-21 22:08:08,246 INFO L226 Difference]: Without dead ends: 437 [2023-11-21 22:08:08,247 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 [2023-11-21 22:08:08,248 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 0 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:08,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 996 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:08:08,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2023-11-21 22:08:08,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 435. [2023-11-21 22:08:08,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 327 states have (on average 1.5749235474006116) internal successors, (515), 393 states have internal predecessors, (515), 36 states have call successors, (36), 13 states have call predecessors, (36), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-21 22:08:08,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 581 transitions. [2023-11-21 22:08:08,284 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 581 transitions. Word has length 7 [2023-11-21 22:08:08,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:08,285 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 581 transitions. [2023-11-21 22:08:08,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2023-11-21 22:08:08,285 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 581 transitions. [2023-11-21 22:08:08,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 22:08:08,286 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:08,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:08,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:08:08,287 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:08,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:08,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1937710821, now seen corresponding path program 1 times [2023-11-21 22:08:08,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:08,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074121611] [2023-11-21 22:08:08,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:08,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:08,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:08:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:08,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:08,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:08,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074121611] [2023-11-21 22:08:08,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074121611] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:08,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997326907] [2023-11-21 22:08:08,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:08,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:08,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:08,474 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:08,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:08:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:08,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:08:08,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:08,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:08:08,883 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:08,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997326907] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:08,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:08:08,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-21 22:08:08,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69295927] [2023-11-21 22:08:08,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:08,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:08:08,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:08,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:08:08,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:08:08,887 INFO L87 Difference]: Start difference. First operand 435 states and 581 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-21 22:08:09,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:09,200 INFO L93 Difference]: Finished difference Result 435 states and 581 transitions. [2023-11-21 22:08:09,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:08:09,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 9 [2023-11-21 22:08:09,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:09,208 INFO L225 Difference]: With dead ends: 435 [2023-11-21 22:08:09,209 INFO L226 Difference]: Without dead ends: 433 [2023-11-21 22:08:09,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:08:09,211 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 342 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:09,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 679 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:08:09,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2023-11-21 22:08:09,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2023-11-21 22:08:09,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 327 states have (on average 1.5688073394495412) internal successors, (513), 391 states have internal predecessors, (513), 36 states have call successors, (36), 13 states have call predecessors, (36), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-21 22:08:09,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 579 transitions. [2023-11-21 22:08:09,283 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 579 transitions. Word has length 9 [2023-11-21 22:08:09,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:09,285 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 579 transitions. [2023-11-21 22:08:09,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-21 22:08:09,286 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 579 transitions. [2023-11-21 22:08:09,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 22:08:09,287 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:09,287 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:09,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:09,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:09,514 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:09,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:09,514 INFO L85 PathProgramCache]: Analyzing trace with hash -60506280, now seen corresponding path program 1 times [2023-11-21 22:08:09,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:09,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192111446] [2023-11-21 22:08:09,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:09,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:09,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:08:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:09,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:09,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:09,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192111446] [2023-11-21 22:08:09,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192111446] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:09,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766682942] [2023-11-21 22:08:09,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:09,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:09,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:09,822 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:09,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:08:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:10,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:08:10,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:10,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:10,230 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:08:10,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:10,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766682942] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:08:10,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:08:10,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2023-11-21 22:08:10,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706809079] [2023-11-21 22:08:10,263 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:08:10,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:08:10,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:10,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:08:10,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:08:10,265 INFO L87 Difference]: Start difference. First operand 433 states and 579 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2023-11-21 22:08:10,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:10,793 INFO L93 Difference]: Finished difference Result 870 states and 1164 transitions. [2023-11-21 22:08:10,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:08:10,794 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 10 [2023-11-21 22:08:10,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:10,798 INFO L225 Difference]: With dead ends: 870 [2023-11-21 22:08:10,799 INFO L226 Difference]: Without dead ends: 442 [2023-11-21 22:08:10,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:08:10,802 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 4 mSDsluCounter, 1488 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1984 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:10,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1984 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 22:08:10,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-11-21 22:08:10,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2023-11-21 22:08:10,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 336 states have (on average 1.5535714285714286) internal successors, (522), 400 states have internal predecessors, (522), 36 states have call successors, (36), 13 states have call predecessors, (36), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-21 22:08:10,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 588 transitions. [2023-11-21 22:08:10,828 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 588 transitions. Word has length 10 [2023-11-21 22:08:10,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:10,829 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 588 transitions. [2023-11-21 22:08:10,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2023-11-21 22:08:10,829 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 588 transitions. [2023-11-21 22:08:10,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 22:08:10,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:10,830 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:10,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:11,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:11,044 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:11,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:11,045 INFO L85 PathProgramCache]: Analyzing trace with hash -376989185, now seen corresponding path program 2 times [2023-11-21 22:08:11,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:11,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322640311] [2023-11-21 22:08:11,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:11,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:11,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:11,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:08:11,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:11,417 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:11,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:11,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322640311] [2023-11-21 22:08:11,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322640311] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:11,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441863294] [2023-11-21 22:08:11,418 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:08:11,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:11,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:11,420 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:11,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 22:08:11,814 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-21 22:08:11,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:08:11,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:08:11,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:11,892 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-21 22:08:11,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:11,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441863294] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:11,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:08:11,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2023-11-21 22:08:11,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211058053] [2023-11-21 22:08:11,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:11,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:08:11,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:11,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:08:11,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:08:11,896 INFO L87 Difference]: Start difference. First operand 442 states and 588 transitions. Second operand has 4 states, 2 states have (on average 4.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-21 22:08:12,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:12,366 INFO L93 Difference]: Finished difference Result 442 states and 588 transitions. [2023-11-21 22:08:12,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:08:12,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 2 states have (on average 4.0) internal successors, (8), 4 states have internal predecessors, (8), 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 19 [2023-11-21 22:08:12,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:12,371 INFO L225 Difference]: With dead ends: 442 [2023-11-21 22:08:12,371 INFO L226 Difference]: Without dead ends: 440 [2023-11-21 22:08:12,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:08:12,373 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 339 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:12,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 1156 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-21 22:08:12,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2023-11-21 22:08:12,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2023-11-21 22:08:12,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 336 states have (on average 1.5476190476190477) internal successors, (520), 398 states have internal predecessors, (520), 36 states have call successors, (36), 13 states have call predecessors, (36), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-21 22:08:12,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 586 transitions. [2023-11-21 22:08:12,401 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 586 transitions. Word has length 19 [2023-11-21 22:08:12,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:12,402 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 586 transitions. [2023-11-21 22:08:12,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 2 states have (on average 4.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-21 22:08:12,402 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 586 transitions. [2023-11-21 22:08:12,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-21 22:08:12,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:12,404 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:12,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:12,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:12,613 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:12,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:12,614 INFO L85 PathProgramCache]: Analyzing trace with hash -753881771, now seen corresponding path program 1 times [2023-11-21 22:08:12,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:12,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716804791] [2023-11-21 22:08:12,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:12,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:12,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:08:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:12,840 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-21 22:08:12,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:12,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716804791] [2023-11-21 22:08:12,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716804791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:12,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:12,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:08:12,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752014167] [2023-11-21 22:08:12,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:12,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:08:12,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:12,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:08:12,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:08:12,844 INFO L87 Difference]: Start difference. First operand 440 states and 586 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2023-11-21 22:08:13,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:13,199 INFO L93 Difference]: Finished difference Result 864 states and 1157 transitions. [2023-11-21 22:08:13,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:08:13,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 24 [2023-11-21 22:08:13,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:13,204 INFO L225 Difference]: With dead ends: 864 [2023-11-21 22:08:13,204 INFO L226 Difference]: Without dead ends: 443 [2023-11-21 22:08:13,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:08:13,206 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 2 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:13,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 985 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:08:13,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-11-21 22:08:13,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2023-11-21 22:08:13,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 339 states have (on average 1.5427728613569323) internal successors, (523), 401 states have internal predecessors, (523), 36 states have call successors, (36), 13 states have call predecessors, (36), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-21 22:08:13,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 589 transitions. [2023-11-21 22:08:13,234 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 589 transitions. Word has length 24 [2023-11-21 22:08:13,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:13,234 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 589 transitions. [2023-11-21 22:08:13,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2023-11-21 22:08:13,235 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 589 transitions. [2023-11-21 22:08:13,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 22:08:13,236 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:13,236 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:13,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:08:13,237 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:13,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:13,237 INFO L85 PathProgramCache]: Analyzing trace with hash -2013894600, now seen corresponding path program 1 times [2023-11-21 22:08:13,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:13,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236672701] [2023-11-21 22:08:13,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:13,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:13,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:08:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:13,504 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-21 22:08:13,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:13,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236672701] [2023-11-21 22:08:13,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236672701] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:13,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:13,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:08:13,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250245820] [2023-11-21 22:08:13,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:13,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:08:13,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:13,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:08:13,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:08:13,507 INFO L87 Difference]: Start difference. First operand 443 states and 589 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-21 22:08:13,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:13,877 INFO L93 Difference]: Finished difference Result 456 states and 604 transitions. [2023-11-21 22:08:13,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:08:13,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 27 [2023-11-21 22:08:13,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:13,882 INFO L225 Difference]: With dead ends: 456 [2023-11-21 22:08:13,882 INFO L226 Difference]: Without dead ends: 454 [2023-11-21 22:08:13,883 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 [2023-11-21 22:08:13,884 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 3 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:13,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 983 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:08:13,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2023-11-21 22:08:13,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 452. [2023-11-21 22:08:13,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 348 states have (on average 1.5402298850574712) internal successors, (536), 410 states have internal predecessors, (536), 36 states have call successors, (36), 13 states have call predecessors, (36), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-21 22:08:13,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 602 transitions. [2023-11-21 22:08:13,913 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 602 transitions. Word has length 27 [2023-11-21 22:08:13,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:13,913 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 602 transitions. [2023-11-21 22:08:13,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-21 22:08:13,914 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 602 transitions. [2023-11-21 22:08:13,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 22:08:13,915 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:13,915 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:13,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:08:13,916 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:13,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:13,917 INFO L85 PathProgramCache]: Analyzing trace with hash -2013945170, now seen corresponding path program 1 times [2023-11-21 22:08:13,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:13,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141302791] [2023-11-21 22:08:13,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:13,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:14,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:08:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:14,162 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-21 22:08:14,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:14,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141302791] [2023-11-21 22:08:14,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141302791] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:14,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395342888] [2023-11-21 22:08:14,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:14,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:14,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:14,165 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:14,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 22:08:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:14,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:08:14,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:14,710 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:08:14,710 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:08:14,840 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:08:14,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395342888] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:08:14,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:08:14,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 7] total 14 [2023-11-21 22:08:14,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311670702] [2023-11-21 22:08:14,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:08:14,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-21 22:08:14,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:14,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-21 22:08:14,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:08:14,845 INFO L87 Difference]: Start difference. First operand 452 states and 602 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 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) [2023-11-21 22:08:15,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:15,498 INFO L93 Difference]: Finished difference Result 907 states and 1213 transitions. [2023-11-21 22:08:15,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 22:08:15,498 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 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 27 [2023-11-21 22:08:15,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:15,502 INFO L225 Difference]: With dead ends: 907 [2023-11-21 22:08:15,502 INFO L226 Difference]: Without dead ends: 469 [2023-11-21 22:08:15,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:08:15,504 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 6 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2443 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:15,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2443 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-21 22:08:15,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-11-21 22:08:15,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2023-11-21 22:08:15,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 366 states have (on average 1.5081967213114753) internal successors, (552), 427 states have internal predecessors, (552), 36 states have call successors, (36), 13 states have call predecessors, (36), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-21 22:08:15,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 618 transitions. [2023-11-21 22:08:15,528 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 618 transitions. Word has length 27 [2023-11-21 22:08:15,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:15,528 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 618 transitions. [2023-11-21 22:08:15,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 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) [2023-11-21 22:08:15,529 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 618 transitions. [2023-11-21 22:08:15,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-21 22:08:15,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:15,530 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:15,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:15,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:15,753 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:15,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:15,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1308039949, now seen corresponding path program 1 times [2023-11-21 22:08:15,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:15,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673160508] [2023-11-21 22:08:15,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:15,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:16,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:08:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:16,060 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-21 22:08:16,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:16,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673160508] [2023-11-21 22:08:16,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673160508] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:16,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:16,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:08:16,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490098601] [2023-11-21 22:08:16,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:16,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:08:16,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:16,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:08:16,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:08:16,062 INFO L87 Difference]: Start difference. First operand 469 states and 618 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-21 22:08:16,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:16,363 INFO L93 Difference]: Finished difference Result 483 states and 636 transitions. [2023-11-21 22:08:16,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:08:16,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 45 [2023-11-21 22:08:16,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:16,371 INFO L225 Difference]: With dead ends: 483 [2023-11-21 22:08:16,371 INFO L226 Difference]: Without dead ends: 481 [2023-11-21 22:08:16,371 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 [2023-11-21 22:08:16,372 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 11 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:16,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 980 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:08:16,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-11-21 22:08:16,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 480. [2023-11-21 22:08:16,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 377 states have (on average 1.5039787798408488) internal successors, (567), 438 states have internal predecessors, (567), 36 states have call successors, (36), 13 states have call predecessors, (36), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-21 22:08:16,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 633 transitions. [2023-11-21 22:08:16,404 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 633 transitions. Word has length 45 [2023-11-21 22:08:16,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:16,405 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 633 transitions. [2023-11-21 22:08:16,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-21 22:08:16,405 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 633 transitions. [2023-11-21 22:08:16,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-21 22:08:16,407 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:16,407 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:16,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:08:16,407 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:16,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:16,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1728415912, now seen corresponding path program 1 times [2023-11-21 22:08:16,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:16,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523110520] [2023-11-21 22:08:16,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:16,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:16,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:08:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:16,695 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-21 22:08:16,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:16,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523110520] [2023-11-21 22:08:16,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523110520] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:16,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:16,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:08:16,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015971807] [2023-11-21 22:08:16,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:16,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:08:16,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:16,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:08:16,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:08:16,699 INFO L87 Difference]: Start difference. First operand 480 states and 633 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) [2023-11-21 22:08:17,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:17,046 INFO L93 Difference]: Finished difference Result 480 states and 633 transitions. [2023-11-21 22:08:17,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:08:17,047 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 46 [2023-11-21 22:08:17,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:17,051 INFO L225 Difference]: With dead ends: 480 [2023-11-21 22:08:17,052 INFO L226 Difference]: Without dead ends: 479 [2023-11-21 22:08:17,052 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 [2023-11-21 22:08:17,053 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 0 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:17,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 983 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:08:17,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2023-11-21 22:08:17,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 475. [2023-11-21 22:08:17,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 373 states have (on average 1.5040214477211795) internal successors, (561), 433 states have internal predecessors, (561), 36 states have call successors, (36), 13 states have call predecessors, (36), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-21 22:08:17,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 627 transitions. [2023-11-21 22:08:17,086 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 627 transitions. Word has length 46 [2023-11-21 22:08:17,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:17,087 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 627 transitions. [2023-11-21 22:08:17,087 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) [2023-11-21 22:08:17,087 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 627 transitions. [2023-11-21 22:08:17,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-21 22:08:17,089 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:17,089 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] [2023-11-21 22:08:17,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 22:08:17,090 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:17,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:17,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1350072135, now seen corresponding path program 1 times [2023-11-21 22:08:17,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:17,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974711898] [2023-11-21 22:08:17,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:17,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:17,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:08:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:17,399 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-21 22:08:17,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:17,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974711898] [2023-11-21 22:08:17,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974711898] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:17,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:17,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:08:17,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072330084] [2023-11-21 22:08:17,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:17,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:08:17,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:17,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:08:17,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:08:17,403 INFO L87 Difference]: Start difference. First operand 475 states and 627 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2023-11-21 22:08:17,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:17,785 INFO L93 Difference]: Finished difference Result 654 states and 876 transitions. [2023-11-21 22:08:17,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:08:17,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 49 [2023-11-21 22:08:17,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:17,790 INFO L225 Difference]: With dead ends: 654 [2023-11-21 22:08:17,790 INFO L226 Difference]: Without dead ends: 652 [2023-11-21 22:08:17,791 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 [2023-11-21 22:08:17,792 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 225 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:17,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 968 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:08:17,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2023-11-21 22:08:17,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 479. [2023-11-21 22:08:17,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 377 states have (on average 1.5013262599469497) internal successors, (566), 437 states have internal predecessors, (566), 36 states have call successors, (36), 13 states have call predecessors, (36), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-21 22:08:17,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 632 transitions. [2023-11-21 22:08:17,818 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 632 transitions. Word has length 49 [2023-11-21 22:08:17,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:17,818 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 632 transitions. [2023-11-21 22:08:17,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2023-11-21 22:08:17,819 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 632 transitions. [2023-11-21 22:08:17,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-21 22:08:17,820 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:17,820 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] [2023-11-21 22:08:17,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 22:08:17,821 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:17,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:17,821 INFO L85 PathProgramCache]: Analyzing trace with hash 590133588, now seen corresponding path program 1 times [2023-11-21 22:08:17,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:17,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734334830] [2023-11-21 22:08:17,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:17,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:18,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:08:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:18,157 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-21 22:08:18,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:18,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734334830] [2023-11-21 22:08:18,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734334830] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:18,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161662895] [2023-11-21 22:08:18,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:18,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:18,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:18,159 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:18,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-21 22:08:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:18,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:08:18,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:18,688 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-21 22:08:18,689 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:18,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161662895] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:18,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:08:18,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-21 22:08:18,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865547769] [2023-11-21 22:08:18,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:18,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:08:18,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:18,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:08:18,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:08:18,693 INFO L87 Difference]: Start difference. First operand 479 states and 632 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 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) [2023-11-21 22:08:19,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:19,001 INFO L93 Difference]: Finished difference Result 480 states and 633 transitions. [2023-11-21 22:08:19,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:08:19,002 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 [2023-11-21 22:08:19,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:19,005 INFO L225 Difference]: With dead ends: 480 [2023-11-21 22:08:19,005 INFO L226 Difference]: Without dead ends: 479 [2023-11-21 22:08:19,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:08:19,006 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 23 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:19,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 988 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:08:19,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2023-11-21 22:08:19,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 478. [2023-11-21 22:08:19,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 377 states have (on average 1.4986737400530503) internal successors, (565), 436 states have internal predecessors, (565), 36 states have call successors, (36), 13 states have call predecessors, (36), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-21 22:08:19,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 631 transitions. [2023-11-21 22:08:19,029 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 631 transitions. Word has length 50 [2023-11-21 22:08:19,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:19,030 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 631 transitions. [2023-11-21 22:08:19,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 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) [2023-11-21 22:08:19,030 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 631 transitions. [2023-11-21 22:08:19,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-21 22:08:19,031 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:19,031 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:19,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:19,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:19,241 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:19,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:19,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1114272619, now seen corresponding path program 1 times [2023-11-21 22:08:19,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:19,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457821869] [2023-11-21 22:08:19,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:19,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:19,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:08:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:19,504 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-21 22:08:19,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:19,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457821869] [2023-11-21 22:08:19,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457821869] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:19,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633890159] [2023-11-21 22:08:19,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:19,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:19,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:19,506 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:19,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-21 22:08:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:08:20,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:20,108 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-21 22:08:20,108 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:08:20,149 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-21 22:08:20,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633890159] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:08:20,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:08:20,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-21 22:08:20,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281472914] [2023-11-21 22:08:20,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:08:20,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:08:20,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:20,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:08:20,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:08:20,151 INFO L87 Difference]: Start difference. First operand 478 states and 631 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 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) [2023-11-21 22:08:20,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:20,711 INFO L93 Difference]: Finished difference Result 516 states and 683 transitions. [2023-11-21 22:08:20,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:08:20,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 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 [2023-11-21 22:08:20,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:20,715 INFO L225 Difference]: With dead ends: 516 [2023-11-21 22:08:20,715 INFO L226 Difference]: Without dead ends: 515 [2023-11-21 22:08:20,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:08:20,716 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 50 mSDsluCounter, 1959 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 2449 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:20,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 2449 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 22:08:20,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-11-21 22:08:20,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 511. [2023-11-21 22:08:20,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 410 states have (on average 1.4878048780487805) internal successors, (610), 469 states have internal predecessors, (610), 36 states have call successors, (36), 13 states have call predecessors, (36), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-21 22:08:20,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 676 transitions. [2023-11-21 22:08:20,771 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 676 transitions. Word has length 51 [2023-11-21 22:08:20,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:20,771 INFO L495 AbstractCegarLoop]: Abstraction has 511 states and 676 transitions. [2023-11-21 22:08:20,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 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) [2023-11-21 22:08:20,772 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 676 transitions. [2023-11-21 22:08:20,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-21 22:08:20,772 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:20,773 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:20,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:20,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:20,991 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:20,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:20,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1723287038, now seen corresponding path program 1 times [2023-11-21 22:08:20,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:20,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510841729] [2023-11-21 22:08:20,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:20,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:21,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:08:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:21,297 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-21 22:08:21,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:21,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510841729] [2023-11-21 22:08:21,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510841729] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:21,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [384360255] [2023-11-21 22:08:21,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:21,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:21,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:21,299 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:21,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-21 22:08:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:21,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:08:21,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:21,837 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-21 22:08:21,837 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:08:21,863 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-21 22:08:21,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [384360255] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:08:21,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:08:21,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-21 22:08:21,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912440401] [2023-11-21 22:08:21,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:08:21,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:08:21,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:21,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:08:21,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:08:21,866 INFO L87 Difference]: Start difference. First operand 511 states and 676 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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) [2023-11-21 22:08:22,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:22,263 INFO L93 Difference]: Finished difference Result 998 states and 1330 transitions. [2023-11-21 22:08:22,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:08:22,264 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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 [2023-11-21 22:08:22,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:22,268 INFO L225 Difference]: With dead ends: 998 [2023-11-21 22:08:22,269 INFO L226 Difference]: Without dead ends: 529 [2023-11-21 22:08:22,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:08:22,274 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 4 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1471 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:22,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1471 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-21 22:08:22,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-11-21 22:08:22,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2023-11-21 22:08:22,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 428 states have (on average 1.4672897196261683) internal successors, (628), 487 states have internal predecessors, (628), 36 states have call successors, (36), 13 states have call predecessors, (36), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-21 22:08:22,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 694 transitions. [2023-11-21 22:08:22,303 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 694 transitions. Word has length 52 [2023-11-21 22:08:22,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:22,304 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 694 transitions. [2023-11-21 22:08:22,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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) [2023-11-21 22:08:22,304 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 694 transitions. [2023-11-21 22:08:22,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-21 22:08:22,305 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:22,305 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] [2023-11-21 22:08:22,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:22,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-21 22:08:22,526 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:22,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:22,526 INFO L85 PathProgramCache]: Analyzing trace with hash 466429074, now seen corresponding path program 1 times [2023-11-21 22:08:22,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:22,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551818037] [2023-11-21 22:08:22,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:22,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:08:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:22,835 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-21 22:08:22,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:22,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551818037] [2023-11-21 22:08:22,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551818037] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:22,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528161194] [2023-11-21 22:08:22,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:22,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:22,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:22,854 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:22,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-21 22:08:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:23,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:08:23,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:23,443 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-21 22:08:23,443 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:23,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528161194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:23,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:08:23,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-21 22:08:23,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590378672] [2023-11-21 22:08:23,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:23,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:08:23,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:23,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:08:23,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:08:23,446 INFO L87 Difference]: Start difference. First operand 529 states and 694 transitions. Second operand has 4 states, 3 states have (on average 8.0) 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) [2023-11-21 22:08:23,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:23,963 INFO L93 Difference]: Finished difference Result 704 states and 938 transitions. [2023-11-21 22:08:23,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:08:23,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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 53 [2023-11-21 22:08:23,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:23,968 INFO L225 Difference]: With dead ends: 704 [2023-11-21 22:08:23,969 INFO L226 Difference]: Without dead ends: 703 [2023-11-21 22:08:23,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:08:23,970 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 450 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:23,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 1463 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 22:08:23,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2023-11-21 22:08:23,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 528. [2023-11-21 22:08:23,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 428 states have (on average 1.4649532710280373) internal successors, (627), 486 states have internal predecessors, (627), 36 states have call successors, (36), 13 states have call predecessors, (36), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-21 22:08:23,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 693 transitions. [2023-11-21 22:08:24,000 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 693 transitions. Word has length 53 [2023-11-21 22:08:24,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:24,000 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 693 transitions. [2023-11-21 22:08:24,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) 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) [2023-11-21 22:08:24,000 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 693 transitions. [2023-11-21 22:08:24,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-21 22:08:24,001 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:24,001 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] [2023-11-21 22:08:24,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:24,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-21 22:08:24,220 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:24,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:24,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1574400008, now seen corresponding path program 1 times [2023-11-21 22:08:24,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:24,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184316655] [2023-11-21 22:08:24,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:24,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:24,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:08:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:24,646 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-21 22:08:24,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:24,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184316655] [2023-11-21 22:08:24,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184316655] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:24,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186071071] [2023-11-21 22:08:24,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:24,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:24,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:24,649 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:24,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-21 22:08:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:25,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:08:25,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:25,349 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-21 22:08:25,350 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:08:25,386 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-21 22:08:25,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186071071] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:08:25,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:08:25,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-21 22:08:25,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403726732] [2023-11-21 22:08:25,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:08:25,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:08:25,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:25,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:08:25,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:08:25,390 INFO L87 Difference]: Start difference. First operand 528 states and 693 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 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) [2023-11-21 22:08:26,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:26,195 INFO L93 Difference]: Finished difference Result 1233 states and 1679 transitions. [2023-11-21 22:08:26,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:08:26,195 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 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 [2023-11-21 22:08:26,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:26,203 INFO L225 Difference]: With dead ends: 1233 [2023-11-21 22:08:26,203 INFO L226 Difference]: Without dead ends: 1232 [2023-11-21 22:08:26,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:08:26,208 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 1369 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 1976 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:26,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 1976 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-21 22:08:26,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2023-11-21 22:08:26,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 540. [2023-11-21 22:08:26,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 440 states have (on average 1.459090909090909) internal successors, (642), 498 states have internal predecessors, (642), 36 states have call successors, (36), 13 states have call predecessors, (36), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-21 22:08:26,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 708 transitions. [2023-11-21 22:08:26,245 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 708 transitions. Word has length 54 [2023-11-21 22:08:26,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:26,246 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 708 transitions. [2023-11-21 22:08:26,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 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) [2023-11-21 22:08:26,246 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 708 transitions. [2023-11-21 22:08:26,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-21 22:08:26,247 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:26,247 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] [2023-11-21 22:08:26,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:26,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-21 22:08:26,465 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:26,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:26,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1965092566, now seen corresponding path program 1 times [2023-11-21 22:08:26,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:26,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966090947] [2023-11-21 22:08:26,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:26,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:26,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:08:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:26,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-21 22:08:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:26,835 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-21 22:08:26,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:26,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966090947] [2023-11-21 22:08:26,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966090947] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:26,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:26,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:08:26,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544891536] [2023-11-21 22:08:26,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:26,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:08:26,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:26,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:08:26,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:26,838 INFO L87 Difference]: Start difference. First operand 540 states and 708 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:08:27,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:27,764 INFO L93 Difference]: Finished difference Result 1008 states and 1348 transitions. [2023-11-21 22:08:27,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:08:27,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 58 [2023-11-21 22:08:27,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:27,771 INFO L225 Difference]: With dead ends: 1008 [2023-11-21 22:08:27,771 INFO L226 Difference]: Without dead ends: 638 [2023-11-21 22:08:27,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:27,774 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 151 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:27,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 1212 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-21 22:08:27,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2023-11-21 22:08:27,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 577. [2023-11-21 22:08:27,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 476 states have (on average 1.453781512605042) internal successors, (692), 534 states have internal predecessors, (692), 37 states have call successors, (37), 13 states have call predecessors, (37), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-21 22:08:27,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 760 transitions. [2023-11-21 22:08:27,808 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 760 transitions. Word has length 58 [2023-11-21 22:08:27,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:27,809 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 760 transitions. [2023-11-21 22:08:27,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:08:27,809 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 760 transitions. [2023-11-21 22:08:27,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-21 22:08:27,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:27,810 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] [2023-11-21 22:08:27,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-21 22:08:27,810 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:27,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:27,811 INFO L85 PathProgramCache]: Analyzing trace with hash 788371266, now seen corresponding path program 1 times [2023-11-21 22:08:27,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:27,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673324872] [2023-11-21 22:08:27,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:27,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:28,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:08:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:28,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-21 22:08:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:28,265 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-21 22:08:28,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:28,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673324872] [2023-11-21 22:08:28,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673324872] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:28,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:28,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:08:28,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109372602] [2023-11-21 22:08:28,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:28,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:08:28,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:28,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:08:28,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:08:28,270 INFO L87 Difference]: Start difference. First operand 577 states and 760 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:08:29,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:29,408 INFO L93 Difference]: Finished difference Result 638 states and 841 transitions. [2023-11-21 22:08:29,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:08:29,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 59 [2023-11-21 22:08:29,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:29,413 INFO L225 Difference]: With dead ends: 638 [2023-11-21 22:08:29,413 INFO L226 Difference]: Without dead ends: 636 [2023-11-21 22:08:29,414 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 [2023-11-21 22:08:29,414 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 150 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:29,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1686 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-21 22:08:29,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2023-11-21 22:08:29,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 577. [2023-11-21 22:08:29,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 476 states have (on average 1.449579831932773) internal successors, (690), 534 states have internal predecessors, (690), 37 states have call successors, (37), 13 states have call predecessors, (37), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-21 22:08:29,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 758 transitions. [2023-11-21 22:08:29,448 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 758 transitions. Word has length 59 [2023-11-21 22:08:29,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:29,448 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 758 transitions. [2023-11-21 22:08:29,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:08:29,449 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 758 transitions. [2023-11-21 22:08:29,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-21 22:08:29,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:29,450 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] [2023-11-21 22:08:29,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-21 22:08:29,450 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:29,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:29,451 INFO L85 PathProgramCache]: Analyzing trace with hash -631809021, now seen corresponding path program 1 times [2023-11-21 22:08:29,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:29,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538152454] [2023-11-21 22:08:29,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:29,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:29,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:29,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:08:29,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:29,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-21 22:08:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:29,730 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-21 22:08:29,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:29,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538152454] [2023-11-21 22:08:29,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538152454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:29,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:29,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:08:29,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537298655] [2023-11-21 22:08:29,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:29,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:08:29,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:29,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:08:29,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:29,733 INFO L87 Difference]: Start difference. First operand 577 states and 758 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:08:30,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:30,731 INFO L93 Difference]: Finished difference Result 982 states and 1321 transitions. [2023-11-21 22:08:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:08:30,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 66 [2023-11-21 22:08:30,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:30,736 INFO L225 Difference]: With dead ends: 982 [2023-11-21 22:08:30,736 INFO L226 Difference]: Without dead ends: 646 [2023-11-21 22:08:30,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:30,738 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 136 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:30,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1220 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-21 22:08:30,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-11-21 22:08:30,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 579. [2023-11-21 22:08:30,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 480 states have (on average 1.44375) internal successors, (693), 536 states have internal predecessors, (693), 37 states have call successors, (37), 13 states have call predecessors, (37), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-21 22:08:30,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 761 transitions. [2023-11-21 22:08:30,772 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 761 transitions. Word has length 66 [2023-11-21 22:08:30,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:30,772 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 761 transitions. [2023-11-21 22:08:30,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:08:30,773 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 761 transitions. [2023-11-21 22:08:30,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-21 22:08:30,774 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:30,774 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] [2023-11-21 22:08:30,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-21 22:08:30,774 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:30,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:30,775 INFO L85 PathProgramCache]: Analyzing trace with hash -631176530, now seen corresponding path program 1 times [2023-11-21 22:08:30,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:30,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032363667] [2023-11-21 22:08:30,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:30,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:31,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:08:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:31,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-21 22:08:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:31,116 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-21 22:08:31,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:31,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032363667] [2023-11-21 22:08:31,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032363667] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:31,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:31,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:08:31,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177488621] [2023-11-21 22:08:31,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:31,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:08:31,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:31,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:08:31,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:31,119 INFO L87 Difference]: Start difference. First operand 579 states and 761 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:08:32,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:32,033 INFO L93 Difference]: Finished difference Result 599 states and 790 transitions. [2023-11-21 22:08:32,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:08:32,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 66 [2023-11-21 22:08:32,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:32,039 INFO L225 Difference]: With dead ends: 599 [2023-11-21 22:08:32,040 INFO L226 Difference]: Without dead ends: 596 [2023-11-21 22:08:32,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:32,042 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 249 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:32,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 973 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-21 22:08:32,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2023-11-21 22:08:32,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 576. [2023-11-21 22:08:32,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 480 states have (on average 1.4375) internal successors, (690), 533 states have internal predecessors, (690), 37 states have call successors, (37), 13 states have call predecessors, (37), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-21 22:08:32,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 758 transitions. [2023-11-21 22:08:32,077 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 758 transitions. Word has length 66 [2023-11-21 22:08:32,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:32,077 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 758 transitions. [2023-11-21 22:08:32,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:08:32,079 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 758 transitions. [2023-11-21 22:08:32,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-21 22:08:32,080 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:32,080 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] [2023-11-21 22:08:32,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-21 22:08:32,082 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:32,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:32,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1888757666, now seen corresponding path program 1 times [2023-11-21 22:08:32,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:32,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133839737] [2023-11-21 22:08:32,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:32,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:32,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:08:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:32,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-21 22:08:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:32,379 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-21 22:08:32,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:32,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133839737] [2023-11-21 22:08:32,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133839737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:32,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:32,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:08:32,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465749133] [2023-11-21 22:08:32,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:32,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:08:32,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:32,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:08:32,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:32,382 INFO L87 Difference]: Start difference. First operand 576 states and 758 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:08:33,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:33,370 INFO L93 Difference]: Finished difference Result 985 states and 1325 transitions. [2023-11-21 22:08:33,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:08:33,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 67 [2023-11-21 22:08:33,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:33,381 INFO L225 Difference]: With dead ends: 985 [2023-11-21 22:08:33,381 INFO L226 Difference]: Without dead ends: 646 [2023-11-21 22:08:33,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:33,383 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 210 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:33,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 1190 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-21 22:08:33,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-11-21 22:08:33,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 562. [2023-11-21 22:08:33,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 470 states have (on average 1.4297872340425533) internal successors, (672), 519 states have internal predecessors, (672), 37 states have call successors, (37), 13 states have call predecessors, (37), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-21 22:08:33,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 740 transitions. [2023-11-21 22:08:33,418 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 740 transitions. Word has length 67 [2023-11-21 22:08:33,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:33,419 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 740 transitions. [2023-11-21 22:08:33,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:08:33,419 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 740 transitions. [2023-11-21 22:08:33,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-21 22:08:33,420 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:33,421 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] [2023-11-21 22:08:33,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-21 22:08:33,421 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:33,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:33,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1908364947, now seen corresponding path program 1 times [2023-11-21 22:08:33,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:33,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581189832] [2023-11-21 22:08:33,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:33,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:33,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:08:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:33,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-21 22:08:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:33,717 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-21 22:08:33,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:33,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581189832] [2023-11-21 22:08:33,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581189832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:33,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:33,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:08:33,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289583241] [2023-11-21 22:08:33,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:33,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:08:33,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:33,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:08:33,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:33,720 INFO L87 Difference]: Start difference. First operand 562 states and 740 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:08:34,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:34,714 INFO L93 Difference]: Finished difference Result 618 states and 820 transitions. [2023-11-21 22:08:34,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:08:34,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 67 [2023-11-21 22:08:34,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:34,719 INFO L225 Difference]: With dead ends: 618 [2023-11-21 22:08:34,719 INFO L226 Difference]: Without dead ends: 617 [2023-11-21 22:08:34,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:34,721 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 266 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:34,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 1052 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-21 22:08:34,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2023-11-21 22:08:34,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 561. [2023-11-21 22:08:34,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 470 states have (on average 1.4276595744680851) internal successors, (671), 518 states have internal predecessors, (671), 37 states have call successors, (37), 13 states have call predecessors, (37), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-21 22:08:34,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 739 transitions. [2023-11-21 22:08:34,832 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 739 transitions. Word has length 67 [2023-11-21 22:08:34,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:34,832 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 739 transitions. [2023-11-21 22:08:34,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:08:34,833 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 739 transitions. [2023-11-21 22:08:34,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-21 22:08:34,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:34,834 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:34,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-21 22:08:34,835 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:34,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:34,835 INFO L85 PathProgramCache]: Analyzing trace with hash 187574493, now seen corresponding path program 2 times [2023-11-21 22:08:34,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:34,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966342082] [2023-11-21 22:08:34,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:34,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:35,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:08:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:35,317 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-21 22:08:35,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:35,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966342082] [2023-11-21 22:08:35,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966342082] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:35,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842071727] [2023-11-21 22:08:35,318 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:08:35,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:35,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:35,319 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:35,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-21 22:08:35,973 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-21 22:08:35,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:08:35,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 22:08:35,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:36,058 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2023-11-21 22:08:36,058 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:36,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842071727] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:36,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:08:36,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-11-21 22:08:36,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057797149] [2023-11-21 22:08:36,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:36,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:08:36,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:36,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:08:36,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:08:36,060 INFO L87 Difference]: Start difference. First operand 561 states and 739 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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) [2023-11-21 22:08:36,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:36,578 INFO L93 Difference]: Finished difference Result 1051 states and 1401 transitions. [2023-11-21 22:08:36,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:08:36,578 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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 [2023-11-21 22:08:36,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:36,582 INFO L225 Difference]: With dead ends: 1051 [2023-11-21 22:08:36,582 INFO L226 Difference]: Without dead ends: 561 [2023-11-21 22:08:36,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:08:36,585 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 328 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:36,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1572 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 22:08:36,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-11-21 22:08:36,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-11-21 22:08:36,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 470 states have (on average 1.425531914893617) internal successors, (670), 518 states have internal predecessors, (670), 37 states have call successors, (37), 13 states have call predecessors, (37), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-21 22:08:36,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 738 transitions. [2023-11-21 22:08:36,619 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 738 transitions. Word has length 66 [2023-11-21 22:08:36,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:36,619 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 738 transitions. [2023-11-21 22:08:36,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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) [2023-11-21 22:08:36,620 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 738 transitions. [2023-11-21 22:08:36,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-21 22:08:36,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:36,621 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:36,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:36,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:36,843 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:36,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:36,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1458622036, now seen corresponding path program 2 times [2023-11-21 22:08:36,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:36,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468358799] [2023-11-21 22:08:36,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:36,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:37,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:08:37,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:37,246 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-21 22:08:37,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:37,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468358799] [2023-11-21 22:08:37,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468358799] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:37,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256308385] [2023-11-21 22:08:37,248 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:08:37,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:37,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:37,250 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:37,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-21 22:08:38,214 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 22:08:38,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:08:38,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 875 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:08:38,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:38,281 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-21 22:08:38,281 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:08:38,368 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-21 22:08:38,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256308385] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:08:38,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:08:38,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-21 22:08:38,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45179979] [2023-11-21 22:08:38,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:08:38,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-21 22:08:38,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:38,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-21 22:08:38,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:08:38,371 INFO L87 Difference]: Start difference. First operand 561 states and 738 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 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) [2023-11-21 22:08:39,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:39,387 INFO L93 Difference]: Finished difference Result 1106 states and 1470 transitions. [2023-11-21 22:08:39,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-21 22:08:39,388 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 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 70 [2023-11-21 22:08:39,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:39,391 INFO L225 Difference]: With dead ends: 1106 [2023-11-21 22:08:39,392 INFO L226 Difference]: Without dead ends: 596 [2023-11-21 22:08:39,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=792, Unknown=0, NotChecked=0, Total=1122 [2023-11-21 22:08:39,395 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 10 mSDsluCounter, 3323 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 3798 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:39,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 3798 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-21 22:08:39,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2023-11-21 22:08:39,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2023-11-21 22:08:39,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 506 states have (on average 1.3932806324110671) internal successors, (705), 553 states have internal predecessors, (705), 37 states have call successors, (37), 13 states have call predecessors, (37), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-21 22:08:39,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 773 transitions. [2023-11-21 22:08:39,429 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 773 transitions. Word has length 70 [2023-11-21 22:08:39,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:39,430 INFO L495 AbstractCegarLoop]: Abstraction has 596 states and 773 transitions. [2023-11-21 22:08:39,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 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) [2023-11-21 22:08:39,430 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 773 transitions. [2023-11-21 22:08:39,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-21 22:08:39,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:39,432 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:39,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-21 22:08:39,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23cae88f-3315-4741-8326-b0a97f25a99a/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-21 22:08:39,649 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [vasprintfErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vasprintfErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-21 22:08:39,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:39,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1999980532, now seen corresponding path program 1 times [2023-11-21 22:08:39,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:39,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585623529] [2023-11-21 22:08:39,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:39,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat