./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/mkdir-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/mkdir-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5850608342e71c73a2884a3b8842eef7b76900542057309a801f65a1038c0448 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 08:28:50,452 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 08:28:50,517 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 08:28:50,521 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 08:28:50,521 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 08:28:50,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 08:28:50,543 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 08:28:50,543 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 08:28:50,544 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 08:28:50,544 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 08:28:50,545 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 08:28:50,545 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 08:28:50,546 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 08:28:50,546 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 08:28:50,547 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 08:28:50,547 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 08:28:50,548 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 08:28:50,548 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 08:28:50,549 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 08:28:50,550 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 08:28:50,550 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 08:28:50,551 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 08:28:50,552 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 08:28:50,552 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 08:28:50,553 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 08:28:50,553 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 08:28:50,553 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 08:28:50,554 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 08:28:50,554 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 08:28:50,554 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 08:28:50,555 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 08:28:50,555 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 08:28:50,555 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 08:28:50,556 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 08:28:50,556 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 08:28:50,556 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 08:28:50,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:28:50,557 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 08:28:50,557 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 08:28:50,557 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 08:28:50,557 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 08:28:50,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 08:28:50,558 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 08:28:50,558 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 08:28:50,558 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 08:28:50,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 08:28:50,558 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5850608342e71c73a2884a3b8842eef7b76900542057309a801f65a1038c0448 [2023-12-02 08:28:50,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 08:28:50,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 08:28:50,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 08:28:50,790 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 08:28:50,791 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 08:28:50,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/busybox-1.22.0/mkdir-1.i [2023-12-02 08:28:53,674 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 08:28:54,051 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 08:28:54,051 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/sv-benchmarks/c/busybox-1.22.0/mkdir-1.i [2023-12-02 08:28:54,081 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/data/f60249134/f23f6339167549689f831ec06bbef88c/FLAGac6095481 [2023-12-02 08:28:54,094 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/data/f60249134/f23f6339167549689f831ec06bbef88c [2023-12-02 08:28:54,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 08:28:54,099 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 08:28:54,100 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 08:28:54,100 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 08:28:54,106 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 08:28:54,107 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:28:54" (1/1) ... [2023-12-02 08:28:54,108 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b1e79e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:54, skipping insertion in model container [2023-12-02 08:28:54,108 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:28:54" (1/1) ... [2023-12-02 08:28:54,207 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 08:28:55,732 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:28:55,765 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 08:28:55,937 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:28:56,112 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:28:56,113 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:28:56,113 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:28:56,119 INFO L206 MainTranslator]: Completed translation [2023-12-02 08:28:56,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:56 WrapperNode [2023-12-02 08:28:56,119 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 08:28:56,120 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 08:28:56,120 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 08:28:56,120 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 08:28:56,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:56" (1/1) ... [2023-12-02 08:28:56,174 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:56" (1/1) ... [2023-12-02 08:28:56,266 INFO L138 Inliner]: procedures = 639, calls = 510, calls flagged for inlining = 27, calls inlined = 26, statements flattened = 2283 [2023-12-02 08:28:56,266 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 08:28:56,267 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 08:28:56,267 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 08:28:56,267 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 08:28:56,276 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:56" (1/1) ... [2023-12-02 08:28:56,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:56" (1/1) ... [2023-12-02 08:28:56,292 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:56" (1/1) ... [2023-12-02 08:28:56,292 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:56" (1/1) ... [2023-12-02 08:28:56,341 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:56" (1/1) ... [2023-12-02 08:28:56,358 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:56" (1/1) ... [2023-12-02 08:28:56,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:56" (1/1) ... [2023-12-02 08:28:56,380 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:56" (1/1) ... [2023-12-02 08:28:56,395 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 08:28:56,396 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 08:28:56,396 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 08:28:56,396 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 08:28:56,397 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:56" (1/1) ... [2023-12-02 08:28:56,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:28:56,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:28:56,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 08:28:56,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 08:28:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-12-02 08:28:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 08:28:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 08:28:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-12-02 08:28:56,474 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-12-02 08:28:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 08:28:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 08:28:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 08:28:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-12-02 08:28:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 08:28:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 08:28:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 08:28:56,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 08:28:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-12-02 08:28:56,475 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-12-02 08:28:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-12-02 08:28:56,475 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-12-02 08:28:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 08:28:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 08:28:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure umask [2023-12-02 08:28:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure umask [2023-12-02 08:28:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2023-12-02 08:28:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure stat [2023-12-02 08:28:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 08:28:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 08:28:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 08:28:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 08:28:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 08:28:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 08:28:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 08:28:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2023-12-02 08:28:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2023-12-02 08:28:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 08:28:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-12-02 08:28:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-12-02 08:28:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-12-02 08:28:56,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 08:28:56,907 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 08:28:56,909 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 08:28:59,014 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 08:28:59,656 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 08:28:59,656 INFO L309 CfgBuilder]: Removed 36 assume(true) statements. [2023-12-02 08:28:59,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:28:59 BoogieIcfgContainer [2023-12-02 08:28:59,658 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 08:28:59,661 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 08:28:59,661 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 08:28:59,664 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 08:28:59,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:28:54" (1/3) ... [2023-12-02 08:28:59,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4035256a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:28:59, skipping insertion in model container [2023-12-02 08:28:59,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:28:56" (2/3) ... [2023-12-02 08:28:59,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4035256a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:28:59, skipping insertion in model container [2023-12-02 08:28:59,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:28:59" (3/3) ... [2023-12-02 08:28:59,667 INFO L112 eAbstractionObserver]: Analyzing ICFG mkdir-1.i [2023-12-02 08:28:59,684 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 08:28:59,684 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 72 error locations. [2023-12-02 08:28:59,768 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 08:28:59,774 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=FINITE_AUTOMATA, 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;@601b4b08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 08:28:59,774 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2023-12-02 08:28:59,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 480 states, 365 states have (on average 1.6931506849315068) internal successors, (618), 439 states have internal predecessors, (618), 33 states have call successors, (33), 9 states have call predecessors, (33), 9 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-02 08:28:59,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 08:28:59,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:28:59,789 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-12-02 08:28:59,789 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:28:59,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:28:59,795 INFO L85 PathProgramCache]: Analyzing trace with hash 2195972, now seen corresponding path program 1 times [2023-12-02 08:28:59,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:28:59,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182330672] [2023-12-02 08:28:59,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:28:59,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:00,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 08:29:00,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:00,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182330672] [2023-12-02 08:29:00,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182330672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:00,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:29:00,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 08:29:00,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735370657] [2023-12-02 08:29:00,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:00,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:29:00,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:00,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:29:00,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:29:00,229 INFO L87 Difference]: Start difference. First operand has 480 states, 365 states have (on average 1.6931506849315068) internal successors, (618), 439 states have internal predecessors, (618), 33 states have call successors, (33), 9 states have call predecessors, (33), 9 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) 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) [2023-12-02 08:29:00,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:00,633 INFO L93 Difference]: Finished difference Result 951 states and 1371 transitions. [2023-12-02 08:29:00,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:29:00,636 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 [2023-12-02 08:29:00,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:00,651 INFO L225 Difference]: With dead ends: 951 [2023-12-02 08:29:00,651 INFO L226 Difference]: Without dead ends: 473 [2023-12-02 08:29:00,657 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 [2023-12-02 08:29:00,661 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 1 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 08:29:00,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1104 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 08:29:00,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2023-12-02 08:29:00,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2023-12-02 08:29:00,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 362 states have (on average 1.5939226519337018) internal successors, (577), 438 states have internal predecessors, (577), 33 states have call successors, (33), 9 states have call predecessors, (33), 8 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 08:29:00,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 637 transitions. [2023-12-02 08:29:00,738 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 637 transitions. Word has length 3 [2023-12-02 08:29:00,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:29:00,739 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 637 transitions. [2023-12-02 08:29:00,739 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) [2023-12-02 08:29:00,739 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 637 transitions. [2023-12-02 08:29:00,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 08:29:00,741 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:00,741 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-12-02 08:29:00,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 08:29:00,742 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:29:00,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:00,743 INFO L85 PathProgramCache]: Analyzing trace with hash 996057679, now seen corresponding path program 1 times [2023-12-02 08:29:00,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:00,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851920573] [2023-12-02 08:29:00,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:00,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:00,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 08:29:00,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:00,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851920573] [2023-12-02 08:29:00,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851920573] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:29:00,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765423506] [2023-12-02 08:29:00,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:00,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:00,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:29:00,951 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:29:00,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 08:29:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:01,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 08:29:01,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:29:01,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 08:29:01,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 08:29:01,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765423506] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:01,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 08:29:01,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-12-02 08:29:01,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627697129] [2023-12-02 08:29:01,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:01,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 08:29:01,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:01,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 08:29:01,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 08:29:01,312 INFO L87 Difference]: Start difference. First operand 473 states and 637 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) [2023-12-02 08:29:01,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:01,758 INFO L93 Difference]: Finished difference Result 473 states and 637 transitions. [2023-12-02 08:29:01,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 08:29:01,760 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 [2023-12-02 08:29:01,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:01,764 INFO L225 Difference]: With dead ends: 473 [2023-12-02 08:29:01,764 INFO L226 Difference]: Without dead ends: 472 [2023-12-02 08:29:01,765 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 [2023-12-02 08:29:01,766 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 2 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1650 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 [2023-12-02 08:29:01,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1650 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 08:29:01,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2023-12-02 08:29:01,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2023-12-02 08:29:01,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 362 states have (on average 1.591160220994475) internal successors, (576), 437 states have internal predecessors, (576), 33 states have call successors, (33), 9 states have call predecessors, (33), 8 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 08:29:01,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 636 transitions. [2023-12-02 08:29:01,795 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 636 transitions. Word has length 6 [2023-12-02 08:29:01,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:29:01,796 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 636 transitions. [2023-12-02 08:29:01,796 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) [2023-12-02 08:29:01,796 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 636 transitions. [2023-12-02 08:29:01,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 08:29:01,797 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:01,797 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-12-02 08:29:01,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 08:29:02,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:02,002 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:29:02,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:02,003 INFO L85 PathProgramCache]: Analyzing trace with hash 813017345, now seen corresponding path program 1 times [2023-12-02 08:29:02,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:02,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692964605] [2023-12-02 08:29:02,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:02,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:02,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 08:29:02,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:02,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692964605] [2023-12-02 08:29:02,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692964605] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:02,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:29:02,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 08:29:02,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322445711] [2023-12-02 08:29:02,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:02,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:29:02,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:02,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:29:02,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:29:02,135 INFO L87 Difference]: Start difference. First operand 472 states and 636 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) [2023-12-02 08:29:02,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:02,506 INFO L93 Difference]: Finished difference Result 472 states and 636 transitions. [2023-12-02 08:29:02,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:29:02,507 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 [2023-12-02 08:29:02,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:02,511 INFO L225 Difference]: With dead ends: 472 [2023-12-02 08:29:02,512 INFO L226 Difference]: Without dead ends: 471 [2023-12-02 08:29:02,512 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 [2023-12-02 08:29:02,514 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 0 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1100 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 [2023-12-02 08:29:02,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1100 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 08:29:02,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-12-02 08:29:02,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 469. [2023-12-02 08:29:02,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 360 states have (on average 1.5916666666666666) internal successors, (573), 434 states have internal predecessors, (573), 33 states have call successors, (33), 9 states have call predecessors, (33), 8 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 08:29:02,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 633 transitions. [2023-12-02 08:29:02,541 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 633 transitions. Word has length 7 [2023-12-02 08:29:02,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:29:02,542 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 633 transitions. [2023-12-02 08:29:02,542 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) [2023-12-02 08:29:02,542 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 633 transitions. [2023-12-02 08:29:02,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 08:29:02,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:02,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:29:02,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 08:29:02,544 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:29:02,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:02,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1671800693, now seen corresponding path program 1 times [2023-12-02 08:29:02,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:02,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061602071] [2023-12-02 08:29:02,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:02,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:02,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 08:29:02,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:02,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061602071] [2023-12-02 08:29:02,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061602071] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:29:02,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746888491] [2023-12-02 08:29:02,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:02,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:02,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:29:02,734 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:29:02,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 08:29:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:03,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 08:29:03,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:29:03,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 08:29:03,050 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 08:29:03,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746888491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:03,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 08:29:03,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 08:29:03,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275597587] [2023-12-02 08:29:03,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:03,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:29:03,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:03,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:29:03,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 08:29:03,052 INFO L87 Difference]: Start difference. First operand 469 states and 633 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) [2023-12-02 08:29:03,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:03,319 INFO L93 Difference]: Finished difference Result 469 states and 633 transitions. [2023-12-02 08:29:03,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:29:03,320 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 [2023-12-02 08:29:03,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:03,324 INFO L225 Difference]: With dead ends: 469 [2023-12-02 08:29:03,324 INFO L226 Difference]: Without dead ends: 467 [2023-12-02 08:29:03,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 08:29:03,325 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 436 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 08:29:03,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 696 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 08:29:03,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-12-02 08:29:03,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2023-12-02 08:29:03,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 360 states have (on average 1.586111111111111) internal successors, (571), 432 states have internal predecessors, (571), 33 states have call successors, (33), 9 states have call predecessors, (33), 8 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 08:29:03,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 631 transitions. [2023-12-02 08:29:03,345 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 631 transitions. Word has length 9 [2023-12-02 08:29:03,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:29:03,346 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 631 transitions. [2023-12-02 08:29:03,347 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) [2023-12-02 08:29:03,347 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 631 transitions. [2023-12-02 08:29:03,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 08:29:03,347 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:03,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:29:03,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-02 08:29:03,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:03,548 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:29:03,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:03,549 INFO L85 PathProgramCache]: Analyzing trace with hash 286214308, now seen corresponding path program 1 times [2023-12-02 08:29:03,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:03,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374270038] [2023-12-02 08:29:03,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:03,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:03,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 08:29:03,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:03,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374270038] [2023-12-02 08:29:03,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374270038] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:29:03,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294784282] [2023-12-02 08:29:03,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:03,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:03,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:29:03,683 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:29:03,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 08:29:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:03,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 08:29:03,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:29:03,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 08:29:03,988 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:29:04,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 08:29:04,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294784282] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:29:04,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1305282784] [2023-12-02 08:29:04,039 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2023-12-02 08:29:04,039 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:29:04,043 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:29:04,049 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:29:04,049 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:29:12,649 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 134 for LOIs [2023-12-02 08:29:12,686 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:29:14,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1305282784] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:14,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:29:14,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 3, 4] total 13 [2023-12-02 08:29:14,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693561959] [2023-12-02 08:29:14,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:14,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 08:29:14,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:14,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 08:29:14,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-12-02 08:29:14,307 INFO L87 Difference]: Start difference. First operand 467 states and 631 transitions. Second operand has 8 states, 5 states have (on average 1.6) internal successors, (8), 6 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) [2023-12-02 08:29:18,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 08:29:20,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:20,504 INFO L93 Difference]: Finished difference Result 469 states and 632 transitions. [2023-12-02 08:29:20,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 08:29:20,505 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 1.6) internal successors, (8), 6 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 10 [2023-12-02 08:29:20,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:20,509 INFO L225 Difference]: With dead ends: 469 [2023-12-02 08:29:20,509 INFO L226 Difference]: Without dead ends: 467 [2023-12-02 08:29:20,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-12-02 08:29:20,511 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 4 mSDsluCounter, 2234 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2775 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-12-02 08:29:20,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2775 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-12-02 08:29:20,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-12-02 08:29:20,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2023-12-02 08:29:20,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 361 states have (on average 1.5789473684210527) internal successors, (570), 431 states have internal predecessors, (570), 33 states have call successors, (33), 10 states have call predecessors, (33), 9 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 08:29:20,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 630 transitions. [2023-12-02 08:29:20,539 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 630 transitions. Word has length 10 [2023-12-02 08:29:20,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:29:20,539 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 630 transitions. [2023-12-02 08:29:20,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 1.6) internal successors, (8), 6 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) [2023-12-02 08:29:20,539 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 630 transitions. [2023-12-02 08:29:20,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 08:29:20,540 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:20,540 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:29:20,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 08:29:20,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:20,742 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:29:20,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:20,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1252612829, now seen corresponding path program 1 times [2023-12-02 08:29:20,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:20,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989778914] [2023-12-02 08:29:20,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:20,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:20,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 08:29:20,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:20,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989778914] [2023-12-02 08:29:20,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989778914] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:29:20,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846758244] [2023-12-02 08:29:20,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:20,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:20,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:29:20,936 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:29:20,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 08:29:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:21,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 08:29:21,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:29:21,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 08:29:21,255 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 08:29:21,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846758244] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:21,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 08:29:21,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 08:29:21,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245082900] [2023-12-02 08:29:21,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:21,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:29:21,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:21,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:29:21,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 08:29:21,257 INFO L87 Difference]: Start difference. First operand 467 states and 630 transitions. Second operand has 3 states, 2 states have (on average 6.5) 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) [2023-12-02 08:29:21,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:21,578 INFO L93 Difference]: Finished difference Result 467 states and 630 transitions. [2023-12-02 08:29:21,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:29:21,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 15 [2023-12-02 08:29:21,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:21,584 INFO L225 Difference]: With dead ends: 467 [2023-12-02 08:29:21,584 INFO L226 Difference]: Without dead ends: 466 [2023-12-02 08:29:21,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 08:29:21,585 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 7 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1081 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 [2023-12-02 08:29:21,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1081 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 08:29:21,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2023-12-02 08:29:21,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2023-12-02 08:29:21,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 361 states have (on average 1.5761772853185596) internal successors, (569), 430 states have internal predecessors, (569), 33 states have call successors, (33), 10 states have call predecessors, (33), 9 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 08:29:21,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 629 transitions. [2023-12-02 08:29:21,615 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 629 transitions. Word has length 15 [2023-12-02 08:29:21,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:29:21,615 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 629 transitions. [2023-12-02 08:29:21,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) 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) [2023-12-02 08:29:21,616 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 629 transitions. [2023-12-02 08:29:21,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 08:29:21,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:21,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:29:21,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 08:29:21,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:21,822 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:29:21,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:21,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1252548898, now seen corresponding path program 1 times [2023-12-02 08:29:21,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:21,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066819829] [2023-12-02 08:29:21,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:21,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:21,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 08:29:21,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:21,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066819829] [2023-12-02 08:29:21,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066819829] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:29:21,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447759435] [2023-12-02 08:29:21,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:21,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:21,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:29:21,998 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:29:22,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 08:29:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:22,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 08:29:22,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:29:22,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 08:29:22,380 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 08:29:22,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447759435] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:22,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 08:29:22,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 08:29:22,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380950115] [2023-12-02 08:29:22,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:22,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:29:22,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:22,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:29:22,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 08:29:22,382 INFO L87 Difference]: Start difference. First operand 466 states and 629 transitions. Second operand has 3 states, 2 states have (on average 6.5) 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) [2023-12-02 08:29:22,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:22,712 INFO L93 Difference]: Finished difference Result 466 states and 629 transitions. [2023-12-02 08:29:22,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:29:22,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 15 [2023-12-02 08:29:22,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:22,717 INFO L225 Difference]: With dead ends: 466 [2023-12-02 08:29:22,717 INFO L226 Difference]: Without dead ends: 465 [2023-12-02 08:29:22,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 08:29:22,719 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 2 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1085 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 [2023-12-02 08:29:22,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1085 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 08:29:22,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2023-12-02 08:29:22,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 465. [2023-12-02 08:29:22,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 361 states have (on average 1.5734072022160666) internal successors, (568), 429 states have internal predecessors, (568), 33 states have call successors, (33), 10 states have call predecessors, (33), 9 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 08:29:22,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 628 transitions. [2023-12-02 08:29:22,745 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 628 transitions. Word has length 15 [2023-12-02 08:29:22,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:29:22,745 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 628 transitions. [2023-12-02 08:29:22,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) 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) [2023-12-02 08:29:22,745 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 628 transitions. [2023-12-02 08:29:22,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 08:29:22,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:22,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:29:22,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 08:29:22,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:22,948 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:29:22,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:22,948 INFO L85 PathProgramCache]: Analyzing trace with hash 237995854, now seen corresponding path program 1 times [2023-12-02 08:29:22,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:22,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168417446] [2023-12-02 08:29:22,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:22,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:23,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 08:29:23,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:23,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168417446] [2023-12-02 08:29:23,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168417446] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:29:23,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265740295] [2023-12-02 08:29:23,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:23,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:23,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:29:23,112 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:29:23,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 08:29:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:23,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 08:29:23,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:29:23,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 08:29:23,481 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 08:29:23,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265740295] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:23,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 08:29:23,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 08:29:23,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876048990] [2023-12-02 08:29:23,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:23,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:29:23,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:23,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:29:23,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 08:29:23,483 INFO L87 Difference]: Start difference. First operand 465 states and 628 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-12-02 08:29:23,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:23,784 INFO L93 Difference]: Finished difference Result 469 states and 634 transitions. [2023-12-02 08:29:23,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:29:23,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 16 [2023-12-02 08:29:23,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:23,789 INFO L225 Difference]: With dead ends: 469 [2023-12-02 08:29:23,789 INFO L226 Difference]: Without dead ends: 468 [2023-12-02 08:29:23,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 08:29:23,790 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 260 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 08:29:23,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 848 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 08:29:23,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2023-12-02 08:29:23,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 464. [2023-12-02 08:29:23,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 361 states have (on average 1.5706371191135735) internal successors, (567), 428 states have internal predecessors, (567), 33 states have call successors, (33), 10 states have call predecessors, (33), 9 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 08:29:23,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 627 transitions. [2023-12-02 08:29:23,818 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 627 transitions. Word has length 16 [2023-12-02 08:29:23,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:29:23,818 INFO L495 AbstractCegarLoop]: Abstraction has 464 states and 627 transitions. [2023-12-02 08:29:23,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-12-02 08:29:23,818 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 627 transitions. [2023-12-02 08:29:23,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 08:29:23,819 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:23,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:29:23,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 08:29:24,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:24,020 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:29:24,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:24,020 INFO L85 PathProgramCache]: Analyzing trace with hash 176292446, now seen corresponding path program 1 times [2023-12-02 08:29:24,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:24,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396334611] [2023-12-02 08:29:24,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:24,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:24,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 08:29:24,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:24,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396334611] [2023-12-02 08:29:24,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396334611] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:29:24,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349561229] [2023-12-02 08:29:24,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:24,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:24,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:29:24,168 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:29:24,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 08:29:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:24,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 08:29:24,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:29:24,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 08:29:24,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 08:29:24,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349561229] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:24,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 08:29:24,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 08:29:24,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067524059] [2023-12-02 08:29:24,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:24,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:29:24,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:24,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:29:24,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 08:29:24,530 INFO L87 Difference]: Start difference. First operand 464 states and 627 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-12-02 08:29:24,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:24,870 INFO L93 Difference]: Finished difference Result 472 states and 637 transitions. [2023-12-02 08:29:24,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:29:24,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 16 [2023-12-02 08:29:24,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:24,873 INFO L225 Difference]: With dead ends: 472 [2023-12-02 08:29:24,874 INFO L226 Difference]: Without dead ends: 471 [2023-12-02 08:29:24,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 08:29:24,874 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 4 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 08:29:24,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1082 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 08:29:24,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-12-02 08:29:24,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 470. [2023-12-02 08:29:24,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 367 states have (on average 1.569482288828338) internal successors, (576), 434 states have internal predecessors, (576), 33 states have call successors, (33), 10 states have call predecessors, (33), 9 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 08:29:24,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 636 transitions. [2023-12-02 08:29:24,899 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 636 transitions. Word has length 16 [2023-12-02 08:29:24,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:29:24,899 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 636 transitions. [2023-12-02 08:29:24,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-12-02 08:29:24,899 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 636 transitions. [2023-12-02 08:29:24,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 08:29:24,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:24,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:29:24,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 08:29:25,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:25,101 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:29:25,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:25,101 INFO L85 PathProgramCache]: Analyzing trace with hash 174310576, now seen corresponding path program 1 times [2023-12-02 08:29:25,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:25,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520506272] [2023-12-02 08:29:25,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:25,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:25,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 08:29:25,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:25,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520506272] [2023-12-02 08:29:25,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520506272] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:29:25,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694211331] [2023-12-02 08:29:25,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:25,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:25,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:29:25,261 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:29:25,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 08:29:25,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:25,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 08:29:25,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:29:25,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 08:29:25,624 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 08:29:25,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694211331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:25,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 08:29:25,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 08:29:25,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184687049] [2023-12-02 08:29:25,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:25,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:29:25,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:25,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:29:25,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 08:29:25,626 INFO L87 Difference]: Start difference. First operand 470 states and 636 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-12-02 08:29:25,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:25,948 INFO L93 Difference]: Finished difference Result 930 states and 1262 transitions. [2023-12-02 08:29:25,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:29:25,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 16 [2023-12-02 08:29:25,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:25,952 INFO L225 Difference]: With dead ends: 930 [2023-12-02 08:29:25,953 INFO L226 Difference]: Without dead ends: 476 [2023-12-02 08:29:25,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 08:29:25,955 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 0 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 08:29:25,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1084 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 08:29:25,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2023-12-02 08:29:25,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2023-12-02 08:29:25,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 373 states have (on average 1.5603217158176943) internal successors, (582), 440 states have internal predecessors, (582), 33 states have call successors, (33), 10 states have call predecessors, (33), 9 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 08:29:25,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 642 transitions. [2023-12-02 08:29:25,981 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 642 transitions. Word has length 16 [2023-12-02 08:29:25,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:29:25,981 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 642 transitions. [2023-12-02 08:29:25,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-12-02 08:29:25,982 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 642 transitions. [2023-12-02 08:29:25,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 08:29:25,982 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:25,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:29:25,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-02 08:29:26,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-02 08:29:26,186 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:29:26,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:26,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1212062689, now seen corresponding path program 1 times [2023-12-02 08:29:26,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:26,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635713354] [2023-12-02 08:29:26,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:26,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:26,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 08:29:26,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:26,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635713354] [2023-12-02 08:29:26,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635713354] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:29:26,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681553912] [2023-12-02 08:29:26,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:26,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:26,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:29:26,338 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:29:26,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 08:29:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:26,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 08:29:26,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:29:26,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 08:29:26,719 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 08:29:26,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681553912] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:26,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 08:29:26,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 08:29:26,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224582400] [2023-12-02 08:29:26,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:26,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:29:26,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:26,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:29:26,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 08:29:26,721 INFO L87 Difference]: Start difference. First operand 476 states and 642 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-12-02 08:29:27,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:27,055 INFO L93 Difference]: Finished difference Result 678 states and 926 transitions. [2023-12-02 08:29:27,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:29:27,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 17 [2023-12-02 08:29:27,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:27,060 INFO L225 Difference]: With dead ends: 678 [2023-12-02 08:29:27,060 INFO L226 Difference]: Without dead ends: 677 [2023-12-02 08:29:27,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 08:29:27,061 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 258 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 08:29:27,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 1072 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 08:29:27,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2023-12-02 08:29:27,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 480. [2023-12-02 08:29:27,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 377 states have (on average 1.557029177718833) internal successors, (587), 444 states have internal predecessors, (587), 33 states have call successors, (33), 10 states have call predecessors, (33), 9 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 08:29:27,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 647 transitions. [2023-12-02 08:29:27,080 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 647 transitions. Word has length 17 [2023-12-02 08:29:27,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:29:27,081 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 647 transitions. [2023-12-02 08:29:27,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-12-02 08:29:27,081 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 647 transitions. [2023-12-02 08:29:27,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 08:29:27,082 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:27,082 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:29:27,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-02 08:29:27,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:27,282 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:29:27,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:27,283 INFO L85 PathProgramCache]: Analyzing trace with hash 271303071, now seen corresponding path program 1 times [2023-12-02 08:29:27,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:27,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947536328] [2023-12-02 08:29:27,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:27,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:27,428 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 08:29:27,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:27,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947536328] [2023-12-02 08:29:27,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947536328] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:29:27,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691061285] [2023-12-02 08:29:27,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:27,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:27,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:29:27,431 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:29:27,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 08:29:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:27,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 08:29:27,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:29:27,777 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 08:29:27,777 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 08:29:27,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691061285] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:27,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 08:29:27,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 08:29:27,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367633370] [2023-12-02 08:29:27,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:27,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:29:27,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:27,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:29:27,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 08:29:27,779 INFO L87 Difference]: Start difference. First operand 480 states and 647 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) [2023-12-02 08:29:28,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:28,088 INFO L93 Difference]: Finished difference Result 480 states and 647 transitions. [2023-12-02 08:29:28,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:29:28,089 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 19 [2023-12-02 08:29:28,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:28,092 INFO L225 Difference]: With dead ends: 480 [2023-12-02 08:29:28,092 INFO L226 Difference]: Without dead ends: 479 [2023-12-02 08:29:28,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 08:29:28,093 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 0 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1083 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 [2023-12-02 08:29:28,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1083 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 08:29:28,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2023-12-02 08:29:28,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 475. [2023-12-02 08:29:28,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 373 states have (on average 1.5576407506702412) internal successors, (581), 439 states have internal predecessors, (581), 33 states have call successors, (33), 10 states have call predecessors, (33), 9 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 08:29:28,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 641 transitions. [2023-12-02 08:29:28,114 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 641 transitions. Word has length 19 [2023-12-02 08:29:28,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:29:28,114 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 641 transitions. [2023-12-02 08:29:28,114 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) [2023-12-02 08:29:28,114 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 641 transitions. [2023-12-02 08:29:28,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 08:29:28,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:28,115 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:29:28,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-02 08:29:28,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-02 08:29:28,318 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:29:28,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:28,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1927880998, now seen corresponding path program 1 times [2023-12-02 08:29:28,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:28,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621609124] [2023-12-02 08:29:28,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:28,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:28,448 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 08:29:28,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:28,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621609124] [2023-12-02 08:29:28,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621609124] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:29:28,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730759996] [2023-12-02 08:29:28,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:28,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:28,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:29:28,450 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:29:28,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 08:29:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:28,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 08:29:28,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:29:28,796 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 08:29:28,796 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:29:28,815 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 08:29:28,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730759996] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:29:28,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [821093408] [2023-12-02 08:29:28,817 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2023-12-02 08:29:28,818 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:29:28,818 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:29:28,818 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:29:28,818 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:29:35,894 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 134 for LOIs [2023-12-02 08:29:35,928 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:29:38,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [821093408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:29:38,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:29:38,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 3, 4] total 15 [2023-12-02 08:29:38,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757143307] [2023-12-02 08:29:38,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:29:38,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 08:29:38,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:29:38,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 08:29:38,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=164, Unknown=1, NotChecked=0, Total=210 [2023-12-02 08:29:38,912 INFO L87 Difference]: Start difference. First operand 475 states and 641 transitions. Second operand has 10 states, 8 states have (on average 2.0) internal successors, (16), 8 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) [2023-12-02 08:29:44,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:29:44,758 INFO L93 Difference]: Finished difference Result 923 states and 1250 transitions. [2023-12-02 08:29:44,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 08:29:44,759 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.0) internal successors, (16), 8 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 21 [2023-12-02 08:29:44,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:29:44,762 INFO L225 Difference]: With dead ends: 923 [2023-12-02 08:29:44,762 INFO L226 Difference]: Without dead ends: 475 [2023-12-02 08:29:44,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=45, Invalid=164, Unknown=1, NotChecked=0, Total=210 [2023-12-02 08:29:44,764 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 0 mSDsluCounter, 1704 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2240 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-12-02 08:29:44,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2240 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 879 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2023-12-02 08:29:44,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2023-12-02 08:29:44,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 475. [2023-12-02 08:29:44,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 373 states have (on average 1.5549597855227881) internal successors, (580), 439 states have internal predecessors, (580), 33 states have call successors, (33), 10 states have call predecessors, (33), 9 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 08:29:44,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 640 transitions. [2023-12-02 08:29:44,787 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 640 transitions. Word has length 21 [2023-12-02 08:29:44,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:29:44,788 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 640 transitions. [2023-12-02 08:29:44,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.0) internal successors, (16), 8 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) [2023-12-02 08:29:44,788 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 640 transitions. [2023-12-02 08:29:44,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 08:29:44,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:29:44,789 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:29:44,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-02 08:29:44,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-02 08:29:44,990 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:29:44,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:29:44,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1680822566, now seen corresponding path program 1 times [2023-12-02 08:29:44,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:29:44,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530766220] [2023-12-02 08:29:44,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:44,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:29:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:45,140 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 08:29:45,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:29:45,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530766220] [2023-12-02 08:29:45,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530766220] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:29:45,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196669326] [2023-12-02 08:29:45,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:29:45,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:29:45,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:29:45,143 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:29:45,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 08:29:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:29:45,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 08:29:45,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:29:45,516 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 08:29:45,516 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:29:45,534 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 08:29:45,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196669326] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:29:45,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1208431789] [2023-12-02 08:29:45,536 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2023-12-02 08:29:45,537 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:29:45,537 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:29:45,537 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:29:45,537 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:30:09,612 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 134 for LOIs [2023-12-02 08:30:09,647 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:30:13,670 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17548#(<= 2147483647 |ULTIMATE.start_main_~i~6#1|)' at error location [2023-12-02 08:30:13,670 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 08:30:13,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:30:13,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2023-12-02 08:30:13,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700808883] [2023-12-02 08:30:13,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 08:30:13,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 08:30:13,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:30:13,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 08:30:13,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2023-12-02 08:30:13,672 INFO L87 Difference]: Start difference. First operand 475 states and 640 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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) [2023-12-02 08:30:14,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:30:14,119 INFO L93 Difference]: Finished difference Result 954 states and 1286 transitions. [2023-12-02 08:30:14,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 08:30:14,120 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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 26 [2023-12-02 08:30:14,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:30:14,123 INFO L225 Difference]: With dead ends: 954 [2023-12-02 08:30:14,123 INFO L226 Difference]: Without dead ends: 484 [2023-12-02 08:30:14,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2023-12-02 08:30:14,125 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 4 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2168 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 08:30:14,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2168 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 08:30:14,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2023-12-02 08:30:14,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2023-12-02 08:30:14,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 382 states have (on average 1.5418848167539267) internal successors, (589), 448 states have internal predecessors, (589), 33 states have call successors, (33), 10 states have call predecessors, (33), 9 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 08:30:14,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 649 transitions. [2023-12-02 08:30:14,147 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 649 transitions. Word has length 26 [2023-12-02 08:30:14,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:30:14,147 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 649 transitions. [2023-12-02 08:30:14,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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) [2023-12-02 08:30:14,147 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 649 transitions. [2023-12-02 08:30:14,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 08:30:14,148 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:30:14,148 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:30:14,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-02 08:30:14,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-02 08:30:14,349 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:30:14,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:30:14,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1838859109, now seen corresponding path program 2 times [2023-12-02 08:30:14,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:30:14,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557484752] [2023-12-02 08:30:14,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:30:14,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:30:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:30:14,545 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-02 08:30:14,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:30:14,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557484752] [2023-12-02 08:30:14,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557484752] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:30:14,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256128365] [2023-12-02 08:30:14,546 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 08:30:14,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:30:14,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:30:14,547 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:30:14,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-02 08:30:14,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-12-02 08:30:14,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 08:30:14,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 08:30:14,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:30:14,916 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-02 08:30:14,916 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:30:14,954 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-02 08:30:14,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256128365] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:30:14,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1678396293] [2023-12-02 08:30:14,957 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2023-12-02 08:30:14,957 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:30:14,958 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:30:14,958 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:30:14,958 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:30:39,173 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 134 for LOIs [2023-12-02 08:30:39,217 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:30:43,500 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19478#(<= 2147483647 |ULTIMATE.start_main_~i~6#1|)' at error location [2023-12-02 08:30:43,501 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 08:30:43,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:30:43,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-12-02 08:30:43,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107967222] [2023-12-02 08:30:43,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 08:30:43,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 08:30:43,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:30:43,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 08:30:43,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2023-12-02 08:30:43,503 INFO L87 Difference]: Start difference. First operand 484 states and 649 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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) [2023-12-02 08:30:44,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:30:44,114 INFO L93 Difference]: Finished difference Result 951 states and 1282 transitions. [2023-12-02 08:30:44,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 08:30:44,115 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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 35 [2023-12-02 08:30:44,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:30:44,118 INFO L225 Difference]: With dead ends: 951 [2023-12-02 08:30:44,118 INFO L226 Difference]: Without dead ends: 493 [2023-12-02 08:30:44,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 86 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2023-12-02 08:30:44,121 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 421 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 2438 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 08:30:44,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 2438 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 08:30:44,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2023-12-02 08:30:44,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 480. [2023-12-02 08:30:44,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 379 states have (on average 1.5408970976253298) internal successors, (584), 444 states have internal predecessors, (584), 33 states have call successors, (33), 10 states have call predecessors, (33), 9 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 08:30:44,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 644 transitions. [2023-12-02 08:30:44,151 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 644 transitions. Word has length 35 [2023-12-02 08:30:44,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:30:44,151 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 644 transitions. [2023-12-02 08:30:44,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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) [2023-12-02 08:30:44,152 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 644 transitions. [2023-12-02 08:30:44,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 08:30:44,153 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:30:44,153 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:30:44,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-12-02 08:30:44,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-02 08:30:44,358 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:30:44,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:30:44,359 INFO L85 PathProgramCache]: Analyzing trace with hash -768711463, now seen corresponding path program 1 times [2023-12-02 08:30:44,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:30:44,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233854788] [2023-12-02 08:30:44,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:30:44,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:30:44,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:30:44,540 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 08:30:44,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:30:44,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233854788] [2023-12-02 08:30:44,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233854788] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:30:44,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972903774] [2023-12-02 08:30:44,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:30:44,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:30:44,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:30:44,542 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:30:44,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-02 08:30:44,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:30:44,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 08:30:44,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:30:44,977 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 08:30:44,977 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:30:45,065 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 08:30:45,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972903774] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:30:45,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [332388560] [2023-12-02 08:30:45,068 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2023-12-02 08:30:45,068 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:30:45,068 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:30:45,069 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:30:45,069 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:31:10,173 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 134 for LOIs [2023-12-02 08:31:10,208 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:31:15,564 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21442#(and (= |ULTIMATE.start___main_~#smode~0#1.offset| 0) (= (+ |ULTIMATE.start___main_~mode~0#1| 1) 0) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (= |ULTIMATE.start_getopt32_~spec_flgs~0#1| 0) (= |ULTIMATE.start___main_~status~0#1| 0) (= |ULTIMATE.start___main_#t~varargs250#1.offset| 0) (= |ULTIMATE.start_getopt32_~flags~0#1| 0) (<= 2147483647 |ULTIMATE.start_getopt32_~argc~0#1|) (= |ULTIMATE.start_getopt32_~applet_opts#1.base| 10) (= |ULTIMATE.start_getopt32_#varArgs#1.offset| 0) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (= |ULTIMATE.start_getopt32_~applet_opts#1.offset| 0) (= 0 |ULTIMATE.start_getopt32_#in~applet_opts#1.offset|) (= |ULTIMATE.start___main_~flags~1#1| 0) (= |ULTIMATE.start_getopt32_~#complementary~0#1.offset| 0) (= |ULTIMATE.start_getopt32_#in~applet_opts#1.base| 10) (= |ULTIMATE.start_getopt32_~requires~0#1| 0))' at error location [2023-12-02 08:31:15,564 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 08:31:15,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:31:15,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 7] total 14 [2023-12-02 08:31:15,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274930152] [2023-12-02 08:31:15,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 08:31:15,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 08:31:15,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:31:15,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 08:31:15,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2023-12-02 08:31:15,566 INFO L87 Difference]: Start difference. First operand 480 states and 644 transitions. Second operand has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 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) [2023-12-02 08:31:16,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:31:16,505 INFO L93 Difference]: Finished difference Result 1362 states and 1859 transitions. [2023-12-02 08:31:16,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 08:31:16,506 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 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 40 [2023-12-02 08:31:16,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:31:16,510 INFO L225 Difference]: With dead ends: 1362 [2023-12-02 08:31:16,510 INFO L226 Difference]: Without dead ends: 896 [2023-12-02 08:31:16,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 91 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2023-12-02 08:31:16,512 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 778 mSDsluCounter, 2883 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 3417 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 08:31:16,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 3417 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 08:31:16,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-12-02 08:31:16,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 502. [2023-12-02 08:31:16,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 401 states have (on average 1.513715710723192) internal successors, (607), 466 states have internal predecessors, (607), 33 states have call successors, (33), 10 states have call predecessors, (33), 9 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 08:31:16,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 667 transitions. [2023-12-02 08:31:16,544 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 667 transitions. Word has length 40 [2023-12-02 08:31:16,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:31:16,544 INFO L495 AbstractCegarLoop]: Abstraction has 502 states and 667 transitions. [2023-12-02 08:31:16,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 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) [2023-12-02 08:31:16,545 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 667 transitions. [2023-12-02 08:31:16,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 08:31:16,546 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:31:16,546 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:31:16,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-12-02 08:31:16,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-02 08:31:16,747 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:31:16,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:31:16,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1279655691, now seen corresponding path program 1 times [2023-12-02 08:31:16,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:31:16,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265977535] [2023-12-02 08:31:16,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:31:16,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:31:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:31:16,992 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-12-02 08:31:16,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:31:16,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265977535] [2023-12-02 08:31:16,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265977535] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:31:16,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:31:16,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 08:31:16,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055179545] [2023-12-02 08:31:16,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:31:16,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 08:31:16,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:31:16,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 08:31:16,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 08:31:16,995 INFO L87 Difference]: Start difference. First operand 502 states and 667 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 08:31:17,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:31:17,469 INFO L93 Difference]: Finished difference Result 1003 states and 1353 transitions. [2023-12-02 08:31:17,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 08:31:17,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 1 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 62 [2023-12-02 08:31:17,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:31:17,473 INFO L225 Difference]: With dead ends: 1003 [2023-12-02 08:31:17,473 INFO L226 Difference]: Without dead ends: 582 [2023-12-02 08:31:17,474 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 [2023-12-02 08:31:17,474 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 91 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 08:31:17,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1056 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 08:31:17,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-12-02 08:31:17,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 539. [2023-12-02 08:31:17,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 437 states have (on average 1.5034324942791761) internal successors, (657), 502 states have internal predecessors, (657), 34 states have call successors, (34), 10 states have call predecessors, (34), 9 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-02 08:31:17,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 719 transitions. [2023-12-02 08:31:17,513 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 719 transitions. Word has length 62 [2023-12-02 08:31:17,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:31:17,513 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 719 transitions. [2023-12-02 08:31:17,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 08:31:17,514 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 719 transitions. [2023-12-02 08:31:17,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 08:31:17,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:31:17,515 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:31:17,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-02 08:31:17,515 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:31:17,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:31:17,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1014563085, now seen corresponding path program 1 times [2023-12-02 08:31:17,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:31:17,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284744772] [2023-12-02 08:31:17,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:31:17,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:31:17,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:31:17,793 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-12-02 08:31:17,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:31:17,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284744772] [2023-12-02 08:31:17,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284744772] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:31:17,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:31:17,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 08:31:17,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198422671] [2023-12-02 08:31:17,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:31:17,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 08:31:17,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:31:17,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 08:31:17,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 08:31:17,796 INFO L87 Difference]: Start difference. First operand 539 states and 719 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 08:31:18,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:31:18,337 INFO L93 Difference]: Finished difference Result 581 states and 773 transitions. [2023-12-02 08:31:18,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 08:31:18,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 1 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 63 [2023-12-02 08:31:18,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:31:18,342 INFO L225 Difference]: With dead ends: 581 [2023-12-02 08:31:18,342 INFO L226 Difference]: Without dead ends: 580 [2023-12-02 08:31:18,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 08:31:18,344 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 94 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 08:31:18,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1605 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 08:31:18,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2023-12-02 08:31:18,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 538. [2023-12-02 08:31:18,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 437 states have (on average 1.4988558352402745) internal successors, (655), 501 states have internal predecessors, (655), 34 states have call successors, (34), 10 states have call predecessors, (34), 9 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-02 08:31:18,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 717 transitions. [2023-12-02 08:31:18,384 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 717 transitions. Word has length 63 [2023-12-02 08:31:18,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:31:18,384 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 717 transitions. [2023-12-02 08:31:18,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 08:31:18,385 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 717 transitions. [2023-12-02 08:31:18,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 08:31:18,386 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:31:18,386 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:31:18,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-02 08:31:18,386 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:31:18,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:31:18,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1956290688, now seen corresponding path program 2 times [2023-12-02 08:31:18,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:31:18,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153583278] [2023-12-02 08:31:18,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:31:18,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:31:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:31:18,649 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-12-02 08:31:18,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:31:18,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153583278] [2023-12-02 08:31:18,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153583278] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:31:18,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119155087] [2023-12-02 08:31:18,650 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 08:31:18,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:31:18,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:31:18,651 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:31:18,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-02 08:31:19,386 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-02 08:31:19,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 08:31:19,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 08:31:19,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:31:19,419 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-12-02 08:31:19,419 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:31:19,456 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-12-02 08:31:19,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119155087] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:31:19,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [885652431] [2023-12-02 08:31:19,458 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2023-12-02 08:31:19,459 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:31:19,459 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:31:19,459 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:31:19,459 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:31:44,409 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 134 for LOIs [2023-12-02 08:31:44,442 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:31:49,486 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '27199#(and (= |ULTIMATE.start___main_~#smode~0#1.offset| 0) (= (+ |ULTIMATE.start___main_~mode~0#1| 1) 0) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (= |ULTIMATE.start_getopt32_~spec_flgs~0#1| 0) (= |ULTIMATE.start___main_~status~0#1| 0) (= |ULTIMATE.start___main_#t~varargs250#1.offset| 0) (= |ULTIMATE.start_getopt32_~flags~0#1| 0) (<= 2147483647 |ULTIMATE.start_getopt32_~argc~0#1|) (= |ULTIMATE.start_getopt32_~applet_opts#1.base| 10) (= |ULTIMATE.start_getopt32_#varArgs#1.offset| 0) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (= |ULTIMATE.start_getopt32_~applet_opts#1.offset| 0) (= 0 |ULTIMATE.start_getopt32_#in~applet_opts#1.offset|) (= |ULTIMATE.start___main_~flags~1#1| 0) (= |ULTIMATE.start_getopt32_~#complementary~0#1.offset| 0) (= |ULTIMATE.start_getopt32_#in~applet_opts#1.base| 10) (= |ULTIMATE.start_getopt32_~requires~0#1| 0))' at error location [2023-12-02 08:31:49,487 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 08:31:49,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:31:49,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-12-02 08:31:49,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209756771] [2023-12-02 08:31:49,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 08:31:49,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 08:31:49,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:31:49,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 08:31:49,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2023-12-02 08:31:49,489 INFO L87 Difference]: Start difference. First operand 538 states and 717 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 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) [2023-12-02 08:31:50,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:31:50,795 INFO L93 Difference]: Finished difference Result 1953 states and 2709 transitions. [2023-12-02 08:31:50,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 08:31:50,796 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 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 62 [2023-12-02 08:31:50,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:31:50,805 INFO L225 Difference]: With dead ends: 1953 [2023-12-02 08:31:50,805 INFO L226 Difference]: Without dead ends: 1952 [2023-12-02 08:31:50,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 157 SyntacticMatches, 10 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2023-12-02 08:31:50,807 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 1816 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1864 SdHoareTripleChecker+Valid, 4493 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-02 08:31:50,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1864 Valid, 4493 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-02 08:31:50,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1952 states. [2023-12-02 08:31:50,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1952 to 554. [2023-12-02 08:31:50,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 453 states have (on average 1.490066225165563) internal successors, (675), 517 states have internal predecessors, (675), 34 states have call successors, (34), 10 states have call predecessors, (34), 9 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-02 08:31:50,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 737 transitions. [2023-12-02 08:31:50,857 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 737 transitions. Word has length 62 [2023-12-02 08:31:50,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:31:50,857 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 737 transitions. [2023-12-02 08:31:50,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 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) [2023-12-02 08:31:50,857 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 737 transitions. [2023-12-02 08:31:50,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 08:31:50,858 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:31:50,858 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:31:50,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-12-02 08:31:51,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:31:51,059 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:31:51,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:31:51,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1386684084, now seen corresponding path program 1 times [2023-12-02 08:31:51,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:31:51,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207058468] [2023-12-02 08:31:51,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:31:51,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:31:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:31:51,311 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-12-02 08:31:51,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:31:51,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207058468] [2023-12-02 08:31:51,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207058468] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:31:51,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:31:51,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 08:31:51,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78106962] [2023-12-02 08:31:51,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:31:51,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 08:31:51,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:31:51,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 08:31:51,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 08:31:51,313 INFO L87 Difference]: Start difference. First operand 554 states and 737 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 08:31:51,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:31:51,873 INFO L93 Difference]: Finished difference Result 596 states and 791 transitions. [2023-12-02 08:31:51,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 08:31:51,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (2), 1 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 64 [2023-12-02 08:31:51,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:31:51,878 INFO L225 Difference]: With dead ends: 596 [2023-12-02 08:31:51,878 INFO L226 Difference]: Without dead ends: 595 [2023-12-02 08:31:51,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 08:31:51,879 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 89 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1609 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 08:31:51,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 1609 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 08:31:51,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2023-12-02 08:31:51,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 554. [2023-12-02 08:31:51,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 453 states have (on average 1.4878587196467992) internal successors, (674), 517 states have internal predecessors, (674), 34 states have call successors, (34), 10 states have call predecessors, (34), 9 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-02 08:31:51,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 736 transitions. [2023-12-02 08:31:51,907 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 736 transitions. Word has length 64 [2023-12-02 08:31:51,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:31:51,907 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 736 transitions. [2023-12-02 08:31:51,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 08:31:51,907 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 736 transitions. [2023-12-02 08:31:51,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 08:31:51,908 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:31:51,908 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:31:51,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-02 08:31:51,908 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:31:51,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:31:51,909 INFO L85 PathProgramCache]: Analyzing trace with hash -2082384726, now seen corresponding path program 1 times [2023-12-02 08:31:51,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:31:51,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894761723] [2023-12-02 08:31:51,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:31:51,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:31:51,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:31:52,279 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-12-02 08:31:52,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:31:52,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894761723] [2023-12-02 08:31:52,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894761723] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:31:52,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 08:31:52,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 08:31:52,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756676430] [2023-12-02 08:31:52,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:31:52,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 08:31:52,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:31:52,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 08:31:52,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 08:31:52,281 INFO L87 Difference]: Start difference. First operand 554 states and 736 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 08:31:52,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:31:52,667 INFO L93 Difference]: Finished difference Result 945 states and 1272 transitions. [2023-12-02 08:31:52,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 08:31:52,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (2), 1 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 70 [2023-12-02 08:31:52,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:31:52,672 INFO L225 Difference]: With dead ends: 945 [2023-12-02 08:31:52,672 INFO L226 Difference]: Without dead ends: 557 [2023-12-02 08:31:52,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 08:31:52,674 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 663 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 08:31:52,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 1018 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 08:31:52,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2023-12-02 08:31:52,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2023-12-02 08:31:52,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 455 states have (on average 1.4835164835164836) internal successors, (675), 519 states have internal predecessors, (675), 34 states have call successors, (34), 11 states have call predecessors, (34), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-02 08:31:52,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 737 transitions. [2023-12-02 08:31:52,709 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 737 transitions. Word has length 70 [2023-12-02 08:31:52,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:31:52,709 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 737 transitions. [2023-12-02 08:31:52,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 08:31:52,710 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 737 transitions. [2023-12-02 08:31:52,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 08:31:52,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:31:52,711 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:31:52,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-02 08:31:52,711 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:31:52,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:31:52,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1443886903, now seen corresponding path program 1 times [2023-12-02 08:31:52,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:31:52,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177743066] [2023-12-02 08:31:52,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:31:52,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:31:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:31:52,992 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-12-02 08:31:52,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:31:52,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177743066] [2023-12-02 08:31:52,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177743066] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:31:52,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657196711] [2023-12-02 08:31:52,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:31:52,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:31:52,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:31:52,994 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:31:52,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-02 08:31:53,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:31:53,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 942 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 08:31:53,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:31:53,579 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-12-02 08:31:53,579 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:31:53,627 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-12-02 08:31:53,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657196711] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:31:53,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [757285296] [2023-12-02 08:31:53,630 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 08:31:53,631 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:31:53,631 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:31:53,631 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:31:53,632 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:32:19,512 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 134 for LOIs [2023-12-02 08:32:19,544 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 265 for LOIs [2023-12-02 08:32:19,685 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:32:27,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [757285296] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:32:27,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:32:27,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [4, 5, 5] total 28 [2023-12-02 08:32:27,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710654211] [2023-12-02 08:32:27,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:32:27,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-02 08:32:27,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:32:27,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-02 08:32:27,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=661, Unknown=7, NotChecked=0, Total=756 [2023-12-02 08:32:27,899 INFO L87 Difference]: Start difference. First operand 557 states and 737 transitions. Second operand has 19 states, 16 states have (on average 2.1875) internal successors, (35), 17 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 08:32:30,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 08:32:33,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 08:32:35,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 08:32:44,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 08:32:47,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:32:47,748 INFO L93 Difference]: Finished difference Result 1037 states and 1389 transitions. [2023-12-02 08:32:47,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-02 08:32:47,749 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 2.1875) internal successors, (35), 17 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 72 [2023-12-02 08:32:47,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:32:47,754 INFO L225 Difference]: With dead ends: 1037 [2023-12-02 08:32:47,754 INFO L226 Difference]: Without dead ends: 561 [2023-12-02 08:32:47,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 184 SyntacticMatches, 10 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=107, Invalid=816, Unknown=7, NotChecked=0, Total=930 [2023-12-02 08:32:47,756 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 12 mSDsluCounter, 4342 mSDsCounter, 0 mSdLazyCounter, 1950 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4863 SdHoareTripleChecker+Invalid, 1956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1950 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2023-12-02 08:32:47,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4863 Invalid, 1956 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1950 Invalid, 4 Unknown, 0 Unchecked, 19.2s Time] [2023-12-02 08:32:47,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-02 08:32:47,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-12-02 08:32:47,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 458 states have (on average 1.480349344978166) internal successors, (678), 522 states have internal predecessors, (678), 35 states have call successors, (35), 12 states have call predecessors, (35), 10 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 08:32:47,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 742 transitions. [2023-12-02 08:32:47,792 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 742 transitions. Word has length 72 [2023-12-02 08:32:47,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:32:47,792 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 742 transitions. [2023-12-02 08:32:47,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 2.1875) internal successors, (35), 17 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 08:32:47,792 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 742 transitions. [2023-12-02 08:32:47,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 08:32:47,793 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:32:47,793 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:32:47,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-12-02 08:32:47,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:32:47,993 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:32:47,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:32:47,994 INFO L85 PathProgramCache]: Analyzing trace with hash -581175768, now seen corresponding path program 1 times [2023-12-02 08:32:47,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:32:47,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439605959] [2023-12-02 08:32:47,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:32:47,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:32:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:32:48,200 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-12-02 08:32:48,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:32:48,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439605959] [2023-12-02 08:32:48,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439605959] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:32:48,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165080521] [2023-12-02 08:32:48,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:32:48,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:32:48,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:32:48,202 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:32:48,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-02 08:32:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:32:48,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 08:32:48,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:32:48,778 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-12-02 08:32:48,778 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:32:48,821 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-12-02 08:32:48,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165080521] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:32:48,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [40255334] [2023-12-02 08:32:48,824 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 08:32:48,824 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:32:48,824 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:32:48,824 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:32:48,824 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:33:26,274 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 134 for LOIs [2023-12-02 08:33:26,307 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 265 for LOIs [2023-12-02 08:33:27,407 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:33:43,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [40255334] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:33:43,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:33:43,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 5, 5] total 38 [2023-12-02 08:33:43,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010940373] [2023-12-02 08:33:43,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:33:43,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-02 08:33:43,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:33:43,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-02 08:33:43,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1276, Unknown=10, NotChecked=0, Total=1406 [2023-12-02 08:33:43,012 INFO L87 Difference]: Start difference. First operand 561 states and 742 transitions. Second operand has 29 states, 24 states have (on average 1.5) internal successors, (36), 26 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 08:33:47,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 08:34:10,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 08:34:12,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 08:34:15,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 08:34:18,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:34:18,881 INFO L93 Difference]: Finished difference Result 637 states and 840 transitions. [2023-12-02 08:34:18,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-02 08:34:18,881 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 24 states have (on average 1.5) internal successors, (36), 26 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 73 [2023-12-02 08:34:18,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:34:18,885 INFO L225 Difference]: With dead ends: 637 [2023-12-02 08:34:18,885 INFO L226 Difference]: Without dead ends: 634 [2023-12-02 08:34:18,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 177 SyntacticMatches, 11 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=143, Invalid=1569, Unknown=10, NotChecked=0, Total=1722 [2023-12-02 08:34:18,886 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 45 mSDsluCounter, 8187 mSDsCounter, 0 mSdLazyCounter, 4491 mSolverCounterSat, 5 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 8690 SdHoareTripleChecker+Invalid, 4503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 4491 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.8s IncrementalHoareTripleChecker+Time [2023-12-02 08:34:18,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 8690 Invalid, 4503 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 4491 Invalid, 7 Unknown, 0 Unchecked, 34.8s Time] [2023-12-02 08:34:18,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2023-12-02 08:34:18,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 581. [2023-12-02 08:34:18,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 477 states have (on average 1.4758909853249476) internal successors, (704), 541 states have internal predecessors, (704), 35 states have call successors, (35), 12 states have call predecessors, (35), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 08:34:18,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 768 transitions. [2023-12-02 08:34:18,931 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 768 transitions. Word has length 73 [2023-12-02 08:34:18,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:34:18,932 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 768 transitions. [2023-12-02 08:34:18,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 24 states have (on average 1.5) internal successors, (36), 26 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 08:34:18,932 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 768 transitions. [2023-12-02 08:34:18,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 08:34:18,932 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:34:18,932 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:34:18,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-12-02 08:34:19,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-12-02 08:34:19,133 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:34:19,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:34:19,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1966754777, now seen corresponding path program 1 times [2023-12-02 08:34:19,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:34:19,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759211647] [2023-12-02 08:34:19,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:34:19,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:34:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:34:19,349 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-12-02 08:34:19,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:34:19,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759211647] [2023-12-02 08:34:19,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759211647] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:34:19,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893136832] [2023-12-02 08:34:19,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:34:19,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:34:19,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:34:19,351 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:34:19,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-02 08:34:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:34:19,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 981 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 08:34:19,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:34:19,871 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-12-02 08:34:19,871 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:34:19,922 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-12-02 08:34:19,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893136832] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:34:19,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [977641550] [2023-12-02 08:34:19,925 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2023-12-02 08:34:19,925 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:34:19,926 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:34:19,926 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:34:19,926 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:34:57,658 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 134 for LOIs [2023-12-02 08:34:57,691 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 265 for LOIs [2023-12-02 08:34:59,672 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:35:21,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [977641550] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:35:21,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:35:21,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [4, 5, 5] total 40 [2023-12-02 08:35:21,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988057671] [2023-12-02 08:35:21,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:35:21,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-02 08:35:21,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:35:21,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-02 08:35:21,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1421, Unknown=7, NotChecked=0, Total=1560 [2023-12-02 08:35:21,440 INFO L87 Difference]: Start difference. First operand 581 states and 768 transitions. Second operand has 31 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 08:35:26,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 08:35:29,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 08:35:31,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 08:35:52,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 08:35:54,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 08:35:57,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 08:35:59,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 08:36:01,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:36:01,932 INFO L93 Difference]: Finished difference Result 693 states and 916 transitions. [2023-12-02 08:36:01,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 08:36:01,933 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 75 [2023-12-02 08:36:01,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:36:01,936 INFO L225 Difference]: With dead ends: 693 [2023-12-02 08:36:01,936 INFO L226 Difference]: Without dead ends: 688 [2023-12-02 08:36:01,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 179 SyntacticMatches, 11 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 22.6s TimeCoverageRelationStatistics Valid=155, Invalid=1730, Unknown=7, NotChecked=0, Total=1892 [2023-12-02 08:36:01,938 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 85 mSDsluCounter, 7738 mSDsCounter, 0 mSdLazyCounter, 4369 mSolverCounterSat, 15 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 8259 SdHoareTripleChecker+Invalid, 4391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 4369 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.5s IncrementalHoareTripleChecker+Time [2023-12-02 08:36:01,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 8259 Invalid, 4391 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 4369 Invalid, 7 Unknown, 0 Unchecked, 39.5s Time] [2023-12-02 08:36:01,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2023-12-02 08:36:01,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 627. [2023-12-02 08:36:01,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 521 states have (on average 1.4664107485604607) internal successors, (764), 585 states have internal predecessors, (764), 37 states have call successors, (37), 12 states have call predecessors, (37), 11 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-02 08:36:01,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 832 transitions. [2023-12-02 08:36:01,988 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 832 transitions. Word has length 75 [2023-12-02 08:36:01,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:36:01,988 INFO L495 AbstractCegarLoop]: Abstraction has 627 states and 832 transitions. [2023-12-02 08:36:01,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 08:36:01,988 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 832 transitions. [2023-12-02 08:36:01,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 08:36:01,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:36:01,989 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:36:01,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-12-02 08:36:02,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-12-02 08:36:02,190 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:36:02,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:36:02,190 INFO L85 PathProgramCache]: Analyzing trace with hash -162376257, now seen corresponding path program 1 times [2023-12-02 08:36:02,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:36:02,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546762695] [2023-12-02 08:36:02,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:36:02,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:36:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:36:02,432 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-12-02 08:36:02,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:36:02,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546762695] [2023-12-02 08:36:02,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546762695] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:36:02,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353766238] [2023-12-02 08:36:02,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:36:02,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:36:02,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:36:02,434 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:36:02,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-02 08:36:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:36:02,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 08:36:02,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:36:02,972 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-12-02 08:36:02,972 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:36:03,013 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-12-02 08:36:03,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353766238] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:36:03,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [127965965] [2023-12-02 08:36:03,016 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 08:36:03,017 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:36:03,017 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:36:03,017 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:36:03,018 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:36:39,983 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 134 for LOIs [2023-12-02 08:36:40,031 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 265 for LOIs [2023-12-02 08:36:41,165 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:36:59,802 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '40156#(and (= |ULTIMATE.start___main_~#smode~0#1.offset| 0) (= (+ |ULTIMATE.start___main_~mode~0#1| 1) 0) (= |ULTIMATE.start_getopt32_~p~3#1.offset| 0) (<= 0 |ULTIMATE.start_getopt32_~s~1#1.offset|) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (exists ((|v_#memory_$Pointer$.base_619| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.base_619| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.base_619| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))) |#memory_$Pointer$.base|)) (<= 0 |ULTIMATE.start_getopt32_~applet_opts#1.offset|) (<= 2147483648 |ULTIMATE.start_getopt32_#t~nondet143#1|) (= |ULTIMATE.start_getopt32_~spec_flgs~0#1| 0) (= |ULTIMATE.start___main_~status~0#1| 0) (= |ULTIMATE.start___main_#t~varargs250#1.offset| 0) (= |ULTIMATE.start_getopt32_~flags~0#1| 0) (exists ((|v_#memory_$Pointer$.offset_615| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_615| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.offset_615| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))))) (= |ULTIMATE.start_getopt32_~applet_opts#1.base| 10) (= |ULTIMATE.start_getopt32_#varArgs#1.offset| 0) (<= |ULTIMATE.start_getopt32_~c~1#1| 31) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (= 0 |ULTIMATE.start_getopt32_#in~applet_opts#1.offset|) (exists ((|v_#memory_int_833| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_833| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_int_833| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |v_#memory_int_833| 10) |ULTIMATE.start_getopt32_~s~1#1.offset|))))) (<= 0 |ULTIMATE.start_getopt32_~c~1#1|) (<= 0 |ULTIMATE.start_getopt32_~on_off~0#1.offset|) (= |ULTIMATE.start___main_~flags~1#1| 0) (<= |ULTIMATE.start_getopt32_~applet_opts#1.offset| 1) (= |ULTIMATE.start_getopt32_~#complementary~0#1.offset| 0) (= |ULTIMATE.start_getopt32_~s~1#1.base| 10) (= |ULTIMATE.start_getopt32_~argc~0#1| 1) (= |ULTIMATE.start_getopt32_#in~applet_opts#1.base| 10) (= |ULTIMATE.start_getopt32_~requires~0#1| 0) (not (= |ULTIMATE.start_getopt32_~c~1#1| 0)))' at error location [2023-12-02 08:36:59,802 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 08:36:59,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:36:59,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-12-02 08:36:59,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840663387] [2023-12-02 08:36:59,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 08:36:59,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 08:36:59,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:36:59,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 08:36:59,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1194, Unknown=8, NotChecked=0, Total=1332 [2023-12-02 08:36:59,804 INFO L87 Difference]: Start difference. First operand 627 states and 832 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 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) [2023-12-02 08:37:00,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:37:00,465 INFO L93 Difference]: Finished difference Result 1226 states and 1639 transitions. [2023-12-02 08:37:00,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 08:37:00,465 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 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 75 [2023-12-02 08:37:00,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:37:00,469 INFO L225 Difference]: With dead ends: 1226 [2023-12-02 08:37:00,469 INFO L226 Difference]: Without dead ends: 639 [2023-12-02 08:37:00,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 181 SyntacticMatches, 12 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=130, Invalid=1194, Unknown=8, NotChecked=0, Total=1332 [2023-12-02 08:37:00,471 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 4 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 08:37:00,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2153 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 08:37:00,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2023-12-02 08:37:00,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 639. [2023-12-02 08:37:00,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 533 states have (on average 1.4559099437148217) internal successors, (776), 597 states have internal predecessors, (776), 37 states have call successors, (37), 12 states have call predecessors, (37), 11 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-02 08:37:00,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 844 transitions. [2023-12-02 08:37:00,524 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 844 transitions. Word has length 75 [2023-12-02 08:37:00,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:37:00,525 INFO L495 AbstractCegarLoop]: Abstraction has 639 states and 844 transitions. [2023-12-02 08:37:00,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 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) [2023-12-02 08:37:00,525 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 844 transitions. [2023-12-02 08:37:00,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 08:37:00,532 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:37:00,532 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:37:00,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-12-02 08:37:00,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-12-02 08:37:00,733 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:37:00,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:37:00,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1911852673, now seen corresponding path program 2 times [2023-12-02 08:37:00,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:37:00,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675184542] [2023-12-02 08:37:00,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:37:00,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:37:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:37:01,090 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 1 proven. 51 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-12-02 08:37:01,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:37:01,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675184542] [2023-12-02 08:37:01,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675184542] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:37:01,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103559887] [2023-12-02 08:37:01,090 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 08:37:01,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:37:01,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:37:01,092 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:37:01,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-02 08:37:01,997 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-02 08:37:01,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 08:37:02,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 08:37:02,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:37:02,048 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2023-12-02 08:37:02,048 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:37:02,146 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2023-12-02 08:37:02,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103559887] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:37:02,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2120252682] [2023-12-02 08:37:02,149 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 08:37:02,149 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:37:02,149 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:37:02,149 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:37:02,149 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:37:39,062 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 134 for LOIs [2023-12-02 08:37:39,098 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 265 for LOIs [2023-12-02 08:37:40,649 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:37:59,267 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '42955#(and (exists ((|v_#memory_int_878| (Array Int (Array Int Int)))) (= (store |v_#memory_int_878| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_int_878| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |v_#memory_int_878| 10) |ULTIMATE.start_getopt32_~s~1#1.offset|))) |#memory_int|)) (= |ULTIMATE.start___main_~#smode~0#1.offset| 0) (= (+ |ULTIMATE.start___main_~mode~0#1| 1) 0) (= |ULTIMATE.start_getopt32_~p~3#1.offset| 0) (<= 0 |ULTIMATE.start_getopt32_~s~1#1.offset|) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (<= 0 |ULTIMATE.start_getopt32_~applet_opts#1.offset|) (<= 2147483648 |ULTIMATE.start_getopt32_#t~nondet143#1|) (= |ULTIMATE.start_getopt32_~spec_flgs~0#1| 0) (= |ULTIMATE.start___main_~status~0#1| 0) (= |ULTIMATE.start___main_#t~varargs250#1.offset| 0) (= |ULTIMATE.start_getopt32_~flags~0#1| 0) (= |ULTIMATE.start_getopt32_~applet_opts#1.base| 10) (= |ULTIMATE.start_getopt32_#varArgs#1.offset| 0) (<= |ULTIMATE.start_getopt32_~c~1#1| 31) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (exists ((|v_#memory_$Pointer$.offset_656| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_656| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.offset_656| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))))) (exists ((|v_#memory_$Pointer$.base_660| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_660| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.base_660| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))))) (= 0 |ULTIMATE.start_getopt32_#in~applet_opts#1.offset|) (<= 0 |ULTIMATE.start_getopt32_~c~1#1|) (<= 0 |ULTIMATE.start_getopt32_~on_off~0#1.offset|) (= |ULTIMATE.start___main_~flags~1#1| 0) (<= |ULTIMATE.start_getopt32_~applet_opts#1.offset| 1) (= |ULTIMATE.start_getopt32_~#complementary~0#1.offset| 0) (= |ULTIMATE.start_getopt32_~s~1#1.base| 10) (= |ULTIMATE.start_getopt32_~argc~0#1| 1) (= |ULTIMATE.start_getopt32_#in~applet_opts#1.base| 10) (= |ULTIMATE.start_getopt32_~requires~0#1| 0) (not (= |ULTIMATE.start_getopt32_~c~1#1| 0)))' at error location [2023-12-02 08:37:59,267 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 08:37:59,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:37:59,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 15 [2023-12-02 08:37:59,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355607965] [2023-12-02 08:37:59,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 08:37:59,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 08:37:59,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:37:59,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 08:37:59,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1649, Unknown=11, NotChecked=0, Total=1806 [2023-12-02 08:37:59,272 INFO L87 Difference]: Start difference. First operand 639 states and 844 transitions. Second operand has 15 states, 13 states have (on average 5.230769230769231) internal successors, (68), 15 states have internal predecessors, (68), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 08:38:00,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:38:00,677 INFO L93 Difference]: Finished difference Result 1266 states and 1698 transitions. [2023-12-02 08:38:00,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 08:38:00,678 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 5.230769230769231) internal successors, (68), 15 states have internal predecessors, (68), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 87 [2023-12-02 08:38:00,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:38:00,683 INFO L225 Difference]: With dead ends: 1266 [2023-12-02 08:38:00,683 INFO L226 Difference]: Without dead ends: 665 [2023-12-02 08:38:00,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 215 SyntacticMatches, 12 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 643 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=186, Invalid=2059, Unknown=11, NotChecked=0, Total=2256 [2023-12-02 08:38:00,687 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 9 mSDsluCounter, 2677 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3214 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-02 08:38:00,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3214 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-02 08:38:00,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2023-12-02 08:38:00,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 652. [2023-12-02 08:38:00,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 545 states have (on average 1.455045871559633) internal successors, (793), 609 states have internal predecessors, (793), 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) [2023-12-02 08:38:00,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 861 transitions. [2023-12-02 08:38:00,769 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 861 transitions. Word has length 87 [2023-12-02 08:38:00,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:38:00,769 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 861 transitions. [2023-12-02 08:38:00,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 5.230769230769231) internal successors, (68), 15 states have internal predecessors, (68), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 08:38:00,769 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 861 transitions. [2023-12-02 08:38:00,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 08:38:00,771 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:38:00,771 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 7, 7, 7, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:38:00,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-12-02 08:38:00,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-12-02 08:38:00,971 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:38:00,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:38:00,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1841057865, now seen corresponding path program 3 times [2023-12-02 08:38:00,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:38:00,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706374119] [2023-12-02 08:38:00,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:38:00,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:38:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:38:01,355 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 1 proven. 70 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2023-12-02 08:38:01,355 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:38:01,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706374119] [2023-12-02 08:38:01,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706374119] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:38:01,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597930471] [2023-12-02 08:38:01,355 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 08:38:01,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:38:01,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:38:01,357 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:38:01,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-02 08:38:01,846 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 08:38:01,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 08:38:01,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 1101 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 08:38:01,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:38:01,898 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 1 proven. 70 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2023-12-02 08:38:01,899 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:38:02,009 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 1 proven. 70 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2023-12-02 08:38:02,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597930471] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:38:02,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1398891464] [2023-12-02 08:38:02,012 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 08:38:02,012 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:38:02,012 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:38:02,012 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:38:02,013 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:38:39,057 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 134 for LOIs [2023-12-02 08:38:39,090 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 265 for LOIs [2023-12-02 08:38:40,114 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:38:58,191 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '45881#(and (exists ((|v_#memory_$Pointer$.base_712| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.base_712| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.base_712| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))) |#memory_$Pointer$.base|)) (= |ULTIMATE.start___main_~#smode~0#1.offset| 0) (= (+ |ULTIMATE.start___main_~mode~0#1| 1) 0) (= |ULTIMATE.start_getopt32_~p~3#1.offset| 0) (<= 0 |ULTIMATE.start_getopt32_~s~1#1.offset|) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (<= 0 |ULTIMATE.start_getopt32_~applet_opts#1.offset|) (<= 2147483648 |ULTIMATE.start_getopt32_#t~nondet143#1|) (= |ULTIMATE.start_getopt32_~spec_flgs~0#1| 0) (= |ULTIMATE.start___main_~status~0#1| 0) (= |ULTIMATE.start___main_#t~varargs250#1.offset| 0) (= |ULTIMATE.start_getopt32_~flags~0#1| 0) (= |ULTIMATE.start_getopt32_~applet_opts#1.base| 10) (= |ULTIMATE.start_getopt32_#varArgs#1.offset| 0) (<= |ULTIMATE.start_getopt32_~c~1#1| 31) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (exists ((|v_#memory_$Pointer$.offset_708| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_708| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.offset_708| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))))) (= 0 |ULTIMATE.start_getopt32_#in~applet_opts#1.offset|) (<= 0 |ULTIMATE.start_getopt32_~c~1#1|) (<= 0 |ULTIMATE.start_getopt32_~on_off~0#1.offset|) (= |ULTIMATE.start___main_~flags~1#1| 0) (<= |ULTIMATE.start_getopt32_~applet_opts#1.offset| 1) (= |ULTIMATE.start_getopt32_~#complementary~0#1.offset| 0) (= |ULTIMATE.start_getopt32_~s~1#1.base| 10) (exists ((|v_#memory_int_934| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_934| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_int_934| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |v_#memory_int_934| 10) |ULTIMATE.start_getopt32_~s~1#1.offset|))))) (= |ULTIMATE.start_getopt32_~argc~0#1| 1) (= |ULTIMATE.start_getopt32_#in~applet_opts#1.base| 10) (= |ULTIMATE.start_getopt32_~requires~0#1| 0) (not (= |ULTIMATE.start_getopt32_~c~1#1| 0)))' at error location [2023-12-02 08:38:58,192 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 08:38:58,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:38:58,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 13 [2023-12-02 08:38:58,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167835047] [2023-12-02 08:38:58,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 08:38:58,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 08:38:58,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:38:58,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 08:38:58,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1452, Unknown=12, NotChecked=0, Total=1640 [2023-12-02 08:38:58,194 INFO L87 Difference]: Start difference. First operand 652 states and 861 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 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) [2023-12-02 08:38:58,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:38:58,894 INFO L93 Difference]: Finished difference Result 1273 states and 1693 transitions. [2023-12-02 08:38:58,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 08:38:58,894 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 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 93 [2023-12-02 08:38:58,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:38:58,898 INFO L225 Difference]: With dead ends: 1273 [2023-12-02 08:38:58,898 INFO L226 Difference]: Without dead ends: 661 [2023-12-02 08:38:58,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 230 SyntacticMatches, 18 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 18.2s TimeCoverageRelationStatistics Valid=176, Invalid=1452, Unknown=12, NotChecked=0, Total=1640 [2023-12-02 08:38:58,901 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 2 mSDsluCounter, 2152 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2691 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 08:38:58,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2691 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 08:38:58,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2023-12-02 08:38:58,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 661. [2023-12-02 08:38:58,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 554 states have (on average 1.447653429602888) internal successors, (802), 618 states have internal predecessors, (802), 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) [2023-12-02 08:38:58,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 870 transitions. [2023-12-02 08:38:58,951 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 870 transitions. Word has length 93 [2023-12-02 08:38:58,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:38:58,951 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 870 transitions. [2023-12-02 08:38:58,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 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) [2023-12-02 08:38:58,951 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 870 transitions. [2023-12-02 08:38:58,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 08:38:58,952 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:38:58,952 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:38:58,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-12-02 08:38:59,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-12-02 08:38:59,153 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:38:59,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:38:59,153 INFO L85 PathProgramCache]: Analyzing trace with hash -2073613362, now seen corresponding path program 4 times [2023-12-02 08:38:59,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:38:59,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773879410] [2023-12-02 08:38:59,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:38:59,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:38:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:38:59,925 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-02 08:38:59,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:38:59,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773879410] [2023-12-02 08:38:59,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773879410] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:38:59,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532983662] [2023-12-02 08:38:59,925 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 08:38:59,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:38:59,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:38:59,927 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:38:59,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-02 08:39:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:39:00,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 129 conjunts are in the unsatisfiable core [2023-12-02 08:39:00,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:39:00,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:39:00,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 08:39:00,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:39:01,031 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 08:39:01,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2023-12-02 08:39:01,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:39:01,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2023-12-02 08:39:01,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 08:39:01,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:39:01,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2023-12-02 08:39:01,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:39:01,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:39:01,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 16 [2023-12-02 08:39:01,176 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-12-02 08:39:01,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-12-02 08:39:01,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 08:39:01,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 08:39:01,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 08:39:01,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 08:39:01,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 08:39:01,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 08:39:01,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 08:39:01,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 08:39:01,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 08:39:01,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 08:39:01,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:39:01,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 08:39:01,944 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-12-02 08:39:01,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-12-02 08:39:02,078 INFO L349 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-12-02 08:39:02,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-12-02 08:39:02,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 08:39:02,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:39:02,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 51 [2023-12-02 08:39:02,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:39:02,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 57 [2023-12-02 08:39:02,271 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2023-12-02 08:39:02,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 132 [2023-12-02 08:39:02,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:39:02,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 16 [2023-12-02 08:39:02,326 INFO L349 Elim1Store]: treesize reduction 34, result has 34.6 percent of original size [2023-12-02 08:39:02,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 53 [2023-12-02 08:39:02,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:39:02,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 45 [2023-12-02 08:39:02,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:39:02,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 51 [2023-12-02 08:39:02,425 INFO L349 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2023-12-02 08:39:02,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 136 treesize of output 116 [2023-12-02 08:39:02,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 46 [2023-12-02 08:39:02,627 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2023-12-02 08:39:02,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 130 treesize of output 120 [2023-12-02 08:39:02,695 INFO L349 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2023-12-02 08:39:02,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 28 [2023-12-02 08:39:02,982 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2023-12-02 08:39:02,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 130 treesize of output 120 [2023-12-02 08:39:03,007 INFO L349 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2023-12-02 08:39:03,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 28 [2023-12-02 08:39:03,368 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2023-12-02 08:39:03,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 130 treesize of output 120 [2023-12-02 08:39:03,438 INFO L349 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2023-12-02 08:39:03,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 28 [2023-12-02 08:39:03,704 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2023-12-02 08:39:03,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 130 treesize of output 120 [2023-12-02 08:39:03,769 INFO L349 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2023-12-02 08:39:03,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 28 [2023-12-02 08:39:04,039 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2023-12-02 08:39:04,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 130 treesize of output 120 [2023-12-02 08:39:04,110 INFO L349 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2023-12-02 08:39:04,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 28 [2023-12-02 08:39:04,437 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2023-12-02 08:39:04,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 130 treesize of output 120 [2023-12-02 08:39:04,463 INFO L349 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2023-12-02 08:39:04,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 28 [2023-12-02 08:39:04,780 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2023-12-02 08:39:04,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 130 treesize of output 120 [2023-12-02 08:39:04,802 INFO L349 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2023-12-02 08:39:04,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 28 [2023-12-02 08:39:05,114 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2023-12-02 08:39:05,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 130 treesize of output 120 [2023-12-02 08:39:05,135 INFO L349 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2023-12-02 08:39:05,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 28 [2023-12-02 08:39:05,438 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2023-12-02 08:39:05,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 130 treesize of output 120 [2023-12-02 08:39:05,458 INFO L349 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2023-12-02 08:39:05,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 28 [2023-12-02 08:39:05,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 34 [2023-12-02 08:39:05,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 08:39:06,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:39:06,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:39:06,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:39:06,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:39:06,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 08:39:06,345 INFO L349 Elim1Store]: treesize reduction 46, result has 48.3 percent of original size [2023-12-02 08:39:06,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 62 treesize of output 90 [2023-12-02 08:39:06,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 08:39:06,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 08:39:06,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 08:39:06,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-12-02 08:39:06,745 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 6 proven. 61 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-12-02 08:39:06,745 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:39:07,868 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (forall ((v_ArrVal_4846 (Array Int Int))) (let ((.cse11 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_getopt32_~on_off~0#1.base| v_ArrVal_4846) |c_ULTIMATE.start_getopt32_~applet_opts#1.base|) (+ 2 |c_ULTIMATE.start_getopt32_~applet_opts#1.offset|)) 256))) (or (= .cse11 58) (= .cse11 0))))) (.cse1 (+ |c_ULTIMATE.start_getopt32_~applet_opts#1.offset| 1)) (.cse7 (forall ((v_ArrVal_4846 (Array Int Int))) (let ((.cse10 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_getopt32_~on_off~0#1.base| v_ArrVal_4846) |c_ULTIMATE.start_getopt32_~applet_opts#1.base|) (+ 3 |c_ULTIMATE.start_getopt32_~applet_opts#1.offset|)) 256))) (or (= .cse10 58) (= .cse10 0)))))) (and (or (forall ((v_ArrVal_4846 (Array Int Int))) (let ((.cse0 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_getopt32_~on_off~0#1.base| v_ArrVal_4846) |c_ULTIMATE.start_getopt32_~applet_opts#1.base|) .cse1) 256))) (or (= .cse0 58) (= .cse0 0)))) (forall ((v_ArrVal_4852 (Array Int Int))) (let ((.cse3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_getopt32_~on_off~0#1.base| v_ArrVal_4852) |c_ULTIMATE.start_getopt32_~applet_opts#1.base|) |c_ULTIMATE.start_getopt32_~applet_opts#1.offset|))) (let ((.cse2 (mod .cse3 256))) (or (= 43 .cse2) (= 45 .cse2) (= 33 .cse3)))))) (or (forall ((v_ArrVal_4852 (Array Int Int))) (not (= 45 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_getopt32_~on_off~0#1.base| v_ArrVal_4852) |c_ULTIMATE.start_getopt32_~applet_opts#1.base|) |c_ULTIMATE.start_getopt32_~applet_opts#1.offset|) 256)))) .cse4) (or .cse4 (forall ((v_ArrVal_4852 (Array Int Int))) (not (= 43 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_getopt32_~on_off~0#1.base| v_ArrVal_4852) |c_ULTIMATE.start_getopt32_~applet_opts#1.base|) |c_ULTIMATE.start_getopt32_~applet_opts#1.offset|) 256))))) (or (forall ((v_ArrVal_4852 (Array Int Int))) (let ((.cse5 (select (store |c_#memory_int| |c_ULTIMATE.start_getopt32_~on_off~0#1.base| v_ArrVal_4852) |c_ULTIMATE.start_getopt32_~applet_opts#1.base|))) (let ((.cse6 (mod (select .cse5 .cse1) 256))) (or (not (= 33 (select .cse5 |c_ULTIMATE.start_getopt32_~applet_opts#1.offset|))) (= .cse6 45) (= .cse6 43))))) .cse4) (or .cse7 (forall ((v_ArrVal_4852 (Array Int Int))) (let ((.cse8 (select (store |c_#memory_int| |c_ULTIMATE.start_getopt32_~on_off~0#1.base| v_ArrVal_4852) |c_ULTIMATE.start_getopt32_~applet_opts#1.base|))) (or (not (= 33 (select .cse8 |c_ULTIMATE.start_getopt32_~applet_opts#1.offset|))) (not (= (mod (select .cse8 .cse1) 256) 43)))))) (or (forall ((v_ArrVal_4852 (Array Int Int))) (let ((.cse9 (select (store |c_#memory_int| |c_ULTIMATE.start_getopt32_~on_off~0#1.base| v_ArrVal_4852) |c_ULTIMATE.start_getopt32_~applet_opts#1.base|))) (or (not (= 33 (select .cse9 |c_ULTIMATE.start_getopt32_~applet_opts#1.offset|))) (not (= (mod (select .cse9 .cse1) 256) 45))))) .cse7))) is different from false [2023-12-02 08:39:07,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532983662] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:39:07,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1183187639] [2023-12-02 08:39:07,878 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2023-12-02 08:39:07,878 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:39:07,879 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:39:07,879 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:39:07,879 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:39:44,413 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 134 for LOIs [2023-12-02 08:39:44,447 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 265 for LOIs [2023-12-02 08:39:46,302 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:40:07,652 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '48642#(and (= |ULTIMATE.start___main_~#smode~0#1.offset| 0) (= (+ |ULTIMATE.start___main_~mode~0#1| 1) 0) (= |ULTIMATE.start_getopt32_~p~3#1.offset| 0) (<= 0 |ULTIMATE.start_getopt32_~s~1#1.offset|) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (exists ((|v_#memory_$Pointer$.offset_751| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_751| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.offset_751| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))))) (<= 0 |ULTIMATE.start_getopt32_~applet_opts#1.offset|) (<= 2147483648 |ULTIMATE.start_getopt32_#t~nondet143#1|) (= |ULTIMATE.start_getopt32_~spec_flgs~0#1| 0) (= |ULTIMATE.start___main_~status~0#1| 0) (= |ULTIMATE.start___main_#t~varargs250#1.offset| 0) (= |ULTIMATE.start_getopt32_~flags~0#1| 0) (exists ((|v_#memory_int_1016| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_1016| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_int_1016| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |v_#memory_int_1016| 10) |ULTIMATE.start_getopt32_~s~1#1.offset|))))) (= |ULTIMATE.start_getopt32_~applet_opts#1.base| 10) (= |ULTIMATE.start_getopt32_#varArgs#1.offset| 0) (<= |ULTIMATE.start_getopt32_~c~1#1| 31) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (= 0 |ULTIMATE.start_getopt32_#in~applet_opts#1.offset|) (<= 0 |ULTIMATE.start_getopt32_~c~1#1|) (<= 0 |ULTIMATE.start_getopt32_~on_off~0#1.offset|) (= |ULTIMATE.start___main_~flags~1#1| 0) (<= |ULTIMATE.start_getopt32_~applet_opts#1.offset| 1) (= |ULTIMATE.start_getopt32_~#complementary~0#1.offset| 0) (= |ULTIMATE.start_getopt32_~s~1#1.base| 10) (= |ULTIMATE.start_getopt32_~argc~0#1| 1) (exists ((|v_#memory_$Pointer$.base_766| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_766| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.base_766| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))))) (= |ULTIMATE.start_getopt32_#in~applet_opts#1.base| 10) (= |ULTIMATE.start_getopt32_~requires~0#1| 0) (not (= |ULTIMATE.start_getopt32_~c~1#1| 0)))' at error location [2023-12-02 08:40:07,653 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 08:40:07,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-02 08:40:07,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 14] total 21 [2023-12-02 08:40:07,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582225900] [2023-12-02 08:40:07,653 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-02 08:40:07,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-02 08:40:07,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:40:07,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-02 08:40:07,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=2691, Unknown=16, NotChecked=104, Total=2970 [2023-12-02 08:40:07,655 INFO L87 Difference]: Start difference. First operand 661 states and 870 transitions. Second operand has 21 states, 20 states have (on average 3.9) internal successors, (78), 21 states have internal predecessors, (78), 3 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-02 08:40:18,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:40:20,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 08:40:25,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:40:25,180 INFO L93 Difference]: Finished difference Result 1480 states and 2001 transitions. [2023-12-02 08:40:25,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 08:40:25,181 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.9) internal successors, (78), 21 states have internal predecessors, (78), 3 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 102 [2023-12-02 08:40:25,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:40:25,187 INFO L225 Difference]: With dead ends: 1480 [2023-12-02 08:40:25,187 INFO L226 Difference]: Without dead ends: 938 [2023-12-02 08:40:25,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 157 SyntacticMatches, 21 SemanticMatches, 75 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1411 ImplicationChecksByTransitivity, 26.1s TimeCoverageRelationStatistics Valid=405, Invalid=5282, Unknown=17, NotChecked=148, Total=5852 [2023-12-02 08:40:25,192 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 774 mSDsluCounter, 5950 mSDsCounter, 0 mSdLazyCounter, 3168 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 6593 SdHoareTripleChecker+Invalid, 3338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 3168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2023-12-02 08:40:25,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 6593 Invalid, 3338 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [170 Valid, 3168 Invalid, 0 Unknown, 0 Unchecked, 14.3s Time] [2023-12-02 08:40:25,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2023-12-02 08:40:25,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 693. [2023-12-02 08:40:25,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 582 states have (on average 1.4398625429553265) internal successors, (838), 649 states have internal predecessors, (838), 39 states have call successors, (39), 14 states have call predecessors, (39), 14 states have return successors, (39), 31 states have call predecessors, (39), 33 states have call successors, (39) [2023-12-02 08:40:25,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 916 transitions. [2023-12-02 08:40:25,295 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 916 transitions. Word has length 102 [2023-12-02 08:40:25,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:40:25,295 INFO L495 AbstractCegarLoop]: Abstraction has 693 states and 916 transitions. [2023-12-02 08:40:25,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.9) internal successors, (78), 21 states have internal predecessors, (78), 3 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-02 08:40:25,295 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 916 transitions. [2023-12-02 08:40:25,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 08:40:25,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:40:25,296 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:40:25,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-12-02 08:40:25,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-12-02 08:40:25,497 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:40:25,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:40:25,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1153877532, now seen corresponding path program 3 times [2023-12-02 08:40:25,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:40:25,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115519782] [2023-12-02 08:40:25,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:40:25,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:40:25,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:40:25,967 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-12-02 08:40:25,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:40:25,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115519782] [2023-12-02 08:40:25,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115519782] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:40:25,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350726744] [2023-12-02 08:40:25,967 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 08:40:25,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:40:25,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:40:25,969 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:40:25,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-02 08:40:26,530 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 08:40:26,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 08:40:26,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 08:40:26,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:40:26,612 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-12-02 08:40:26,613 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:40:26,777 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-12-02 08:40:26,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350726744] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:40:26,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [822850470] [2023-12-02 08:40:26,779 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2023-12-02 08:40:26,779 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:40:26,780 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:40:26,780 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:40:26,780 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:40:52,526 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 134 for LOIs [2023-12-02 08:40:52,560 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:40:59,282 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '51956#(and (= |ULTIMATE.start___main_~#smode~0#1.offset| 0) (= (+ |ULTIMATE.start___main_~mode~0#1| 1) 0) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (= |ULTIMATE.start_getopt32_~spec_flgs~0#1| 0) (= |ULTIMATE.start___main_~status~0#1| 0) (= |ULTIMATE.start___main_#t~varargs250#1.offset| 0) (= |ULTIMATE.start_getopt32_~flags~0#1| 0) (<= 2147483647 |ULTIMATE.start_getopt32_~argc~0#1|) (= |ULTIMATE.start_getopt32_~applet_opts#1.base| 10) (= |ULTIMATE.start_getopt32_#varArgs#1.offset| 0) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (= |ULTIMATE.start_getopt32_~applet_opts#1.offset| 0) (= 0 |ULTIMATE.start_getopt32_#in~applet_opts#1.offset|) (= |ULTIMATE.start___main_~flags~1#1| 0) (= |ULTIMATE.start_getopt32_~#complementary~0#1.offset| 0) (= |ULTIMATE.start_getopt32_#in~applet_opts#1.base| 10) (= |ULTIMATE.start_getopt32_~requires~0#1| 0))' at error location [2023-12-02 08:40:59,283 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 08:40:59,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:40:59,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2023-12-02 08:40:59,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733111757] [2023-12-02 08:40:59,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 08:40:59,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-02 08:40:59,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:40:59,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-02 08:40:59,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=757, Unknown=0, NotChecked=0, Total=930 [2023-12-02 08:40:59,285 INFO L87 Difference]: Start difference. First operand 693 states and 916 transitions. Second operand has 17 states, 16 states have (on average 5.0) internal successors, (80), 17 states have internal predecessors, (80), 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) [2023-12-02 08:41:02,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:41:02,492 INFO L93 Difference]: Finished difference Result 4023 states and 5598 transitions. [2023-12-02 08:41:02,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 08:41:02,493 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.0) internal successors, (80), 17 states have internal predecessors, (80), 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 102 [2023-12-02 08:41:02,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:41:02,512 INFO L225 Difference]: With dead ends: 4023 [2023-12-02 08:41:02,512 INFO L226 Difference]: Without dead ends: 4022 [2023-12-02 08:41:02,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 273 SyntacticMatches, 10 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=173, Invalid=757, Unknown=0, NotChecked=0, Total=930 [2023-12-02 08:41:02,514 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 6102 mSDsluCounter, 4974 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6214 SdHoareTripleChecker+Valid, 5509 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-02 08:41:02,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6214 Valid, 5509 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-02 08:41:02,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4022 states. [2023-12-02 08:41:02,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4022 to 725. [2023-12-02 08:41:02,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 614 states have (on average 1.4299674267100977) internal successors, (878), 681 states have internal predecessors, (878), 39 states have call successors, (39), 14 states have call predecessors, (39), 14 states have return successors, (39), 31 states have call predecessors, (39), 33 states have call successors, (39) [2023-12-02 08:41:02,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 956 transitions. [2023-12-02 08:41:02,634 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 956 transitions. Word has length 102 [2023-12-02 08:41:02,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:41:02,634 INFO L495 AbstractCegarLoop]: Abstraction has 725 states and 956 transitions. [2023-12-02 08:41:02,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.0) internal successors, (80), 17 states have internal predecessors, (80), 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) [2023-12-02 08:41:02,634 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 956 transitions. [2023-12-02 08:41:02,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 08:41:02,635 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:41:02,635 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:41:02,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-12-02 08:41:02,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:41:02,835 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:41:02,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:41:02,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1804669328, now seen corresponding path program 1 times [2023-12-02 08:41:02,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:41:02,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739864629] [2023-12-02 08:41:02,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:41:02,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:41:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:41:03,610 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-02 08:41:03,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:41:03,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739864629] [2023-12-02 08:41:03,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739864629] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:41:03,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033618246] [2023-12-02 08:41:03,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:41:03,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:41:03,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:41:03,612 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:41:03,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-12-02 08:41:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:41:05,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 08:41:05,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:41:05,444 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-02 08:41:05,445 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:41:05,722 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-02 08:41:05,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033618246] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:41:05,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1215885214] [2023-12-02 08:41:05,724 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2023-12-02 08:41:05,725 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:41:05,725 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:41:05,725 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:41:05,725 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:41:44,490 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 134 for LOIs [2023-12-02 08:41:44,524 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 265 for LOIs [2023-12-02 08:41:45,749 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 08:42:10,323 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '58191#(and (= |ULTIMATE.start___main_~#smode~0#1.offset| 0) (= (+ |ULTIMATE.start___main_~mode~0#1| 1) 0) (<= 0 |ULTIMATE.start_getopt32_~s~1#1.offset|) (= 0 (+ |ULTIMATE.start_getopt32_~max_arg~0#1| 1)) (<= 0 |ULTIMATE.start_getopt32_~applet_opts#1.offset|) (<= 2147483648 |ULTIMATE.start_getopt32_#t~nondet143#1|) (= |ULTIMATE.start_getopt32_~spec_flgs~0#1| 0) (= |ULTIMATE.start___main_~status~0#1| 0) (= |ULTIMATE.start___main_#t~varargs250#1.offset| 0) (= |ULTIMATE.start_getopt32_~flags~0#1| 0) (= |ULTIMATE.start_getopt32_~applet_opts#1.base| 10) (exists ((|v_#memory_int_1097| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_1097| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_int_1097| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |v_#memory_int_1097| 10) |ULTIMATE.start_getopt32_~s~1#1.offset|))))) (= |ULTIMATE.start_getopt32_#varArgs#1.offset| 0) (exists ((|v_#memory_$Pointer$.base_839| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_839| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.base_839| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))))) (<= |ULTIMATE.start_getopt32_~c~1#1| 31) (<= 0 |ULTIMATE.start_getopt32_~p~3#1.offset|) (= |ULTIMATE.start_getopt32_~min_arg~0#1| 0) (= 0 |ULTIMATE.start_getopt32_#in~applet_opts#1.offset|) (<= 0 |ULTIMATE.start_getopt32_~c~1#1|) (<= 0 |ULTIMATE.start_getopt32_~on_off~0#1.offset|) (= |ULTIMATE.start___main_~flags~1#1| 0) (<= |ULTIMATE.start_getopt32_~applet_opts#1.offset| 1) (= |ULTIMATE.start_getopt32_~#complementary~0#1.offset| 0) (= |ULTIMATE.start_getopt32_~s~1#1.base| 10) (= |ULTIMATE.start_getopt32_~argc~0#1| 1) (= |ULTIMATE.start_getopt32_#in~applet_opts#1.base| 10) (exists ((|v_#memory_$Pointer$.offset_824| (Array Int (Array Int Int)))) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_824| |ULTIMATE.start_getopt32_~on_off~0#1.base| (store (select |v_#memory_$Pointer$.offset_824| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_getopt32_~on_off~0#1.base|) |ULTIMATE.start_getopt32_~on_off~0#1.offset|))))) (= |ULTIMATE.start_getopt32_~requires~0#1| 0) (not (= |ULTIMATE.start_getopt32_~c~1#1| 0)))' at error location [2023-12-02 08:42:10,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 08:42:10,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 08:42:10,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2023-12-02 08:42:10,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391710945] [2023-12-02 08:42:10,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 08:42:10,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-02 08:42:10,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:42:10,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-02 08:42:10,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=2314, Unknown=4, NotChecked=0, Total=2550 [2023-12-02 08:42:10,326 INFO L87 Difference]: Start difference. First operand 725 states and 956 transitions. Second operand has 21 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 21 states have internal predecessors, (55), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 08:42:13,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:42:13,918 INFO L93 Difference]: Finished difference Result 1342 states and 1836 transitions. [2023-12-02 08:42:13,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-02 08:42:13,919 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 21 states have internal predecessors, (55), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 105 [2023-12-02 08:42:13,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:42:13,922 INFO L225 Difference]: With dead ends: 1342 [2023-12-02 08:42:13,922 INFO L226 Difference]: Without dead ends: 768 [2023-12-02 08:42:13,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 261 SyntacticMatches, 12 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1327 ImplicationChecksByTransitivity, 26.7s TimeCoverageRelationStatistics Valid=589, Invalid=3963, Unknown=4, NotChecked=0, Total=4556 [2023-12-02 08:42:13,926 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 20 mSDsluCounter, 4289 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 4829 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-02 08:42:13,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 4829 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-02 08:42:13,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2023-12-02 08:42:14,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 739. [2023-12-02 08:42:14,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 628 states have (on average 1.4203821656050954) internal successors, (892), 695 states have internal predecessors, (892), 39 states have call successors, (39), 14 states have call predecessors, (39), 14 states have return successors, (39), 31 states have call predecessors, (39), 33 states have call successors, (39) [2023-12-02 08:42:14,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 970 transitions. [2023-12-02 08:42:14,041 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 970 transitions. Word has length 105 [2023-12-02 08:42:14,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:42:14,041 INFO L495 AbstractCegarLoop]: Abstraction has 739 states and 970 transitions. [2023-12-02 08:42:14,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 21 states have internal predecessors, (55), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 08:42:14,042 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 970 transitions. [2023-12-02 08:42:14,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-02 08:42:14,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:42:14,042 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:42:14,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-12-02 08:42:14,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:42:14,243 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-12-02 08:42:14,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:42:14,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1035609601, now seen corresponding path program 2 times [2023-12-02 08:42:14,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:42:14,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805923234] [2023-12-02 08:42:14,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:42:14,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:42:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:42:15,602 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-02 08:42:15,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:42:15,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805923234] [2023-12-02 08:42:15,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805923234] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:42:15,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222058524] [2023-12-02 08:42:15,603 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 08:42:15,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:42:15,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:42:15,604 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:42:15,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9e2457f-f5c2-4588-b016-e011bf45e55a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process