./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7cd6aaa75855c8ee03a174376352b142cf57dd56532b968b1b6c916585172927 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:14:14,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:14:14,759 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 17:14:14,767 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:14:14,768 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:14:14,803 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:14:14,804 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:14:14,804 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:14:14,805 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:14:14,806 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:14:14,807 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:14:14,807 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:14:14,809 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:14:14,809 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:14:14,810 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:14:14,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:14:14,811 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:14:14,811 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:14:14,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:14:14,815 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:14:14,816 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:14:14,816 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:14:14,816 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:14:14,817 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:14:14,817 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:14:14,817 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 17:14:14,818 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:14:14,818 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:14:14,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:14:14,818 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:14:14,819 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:14:14,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:14:14,819 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:14:14,822 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:14:14,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:14:14,823 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:14:14,823 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:14:14,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:14:14,824 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:14:14,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:14:14,825 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:14:14,825 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:14:14,826 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:14:14,826 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:14:14,826 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cd6aaa75855c8ee03a174376352b142cf57dd56532b968b1b6c916585172927 [2024-11-08 17:14:15,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:14:15,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:14:15,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:14:15,131 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:14:15,132 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:14:15,133 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.i Unable to find full path for "g++" [2024-11-08 17:14:17,372 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:14:17,735 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:14:17,736 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.i [2024-11-08 17:14:17,759 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/bin/uautomizer-verify-jihMAELWvX/data/a240d2bc7/c49f10404dc149b2a1951c63472258b6/FLAG24ca7d46f [2024-11-08 17:14:17,781 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/bin/uautomizer-verify-jihMAELWvX/data/a240d2bc7/c49f10404dc149b2a1951c63472258b6 [2024-11-08 17:14:17,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:14:17,786 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:14:17,791 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:14:17,792 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:14:17,800 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:14:17,801 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:14:17" (1/1) ... [2024-11-08 17:14:17,802 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@582d59b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:17, skipping insertion in model container [2024-11-08 17:14:17,803 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:14:17" (1/1) ... [2024-11-08 17:14:17,868 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:14:18,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:14:18,462 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:14:18,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:14:18,628 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:14:18,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:18 WrapperNode [2024-11-08 17:14:18,629 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:14:18,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:14:18,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:14:18,631 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:14:18,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:18" (1/1) ... [2024-11-08 17:14:18,669 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:18" (1/1) ... [2024-11-08 17:14:18,708 INFO L138 Inliner]: procedures = 171, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 138 [2024-11-08 17:14:18,709 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:14:18,710 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:14:18,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:14:18,711 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:14:18,725 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:18" (1/1) ... [2024-11-08 17:14:18,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:18" (1/1) ... [2024-11-08 17:14:18,729 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:18" (1/1) ... [2024-11-08 17:14:18,759 INFO L175 MemorySlicer]: Split 20 memory accesses to 5 slices as follows [2, 5, 6, 5, 2]. 30 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 5, 1, 5, 0]. The 3 writes are split as follows [0, 0, 2, 0, 1]. [2024-11-08 17:14:18,760 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:18" (1/1) ... [2024-11-08 17:14:18,760 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:18" (1/1) ... [2024-11-08 17:14:18,779 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:18" (1/1) ... [2024-11-08 17:14:18,785 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:18" (1/1) ... [2024-11-08 17:14:18,788 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:18" (1/1) ... [2024-11-08 17:14:18,790 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:18" (1/1) ... [2024-11-08 17:14:18,793 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:14:18,795 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:14:18,795 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:14:18,796 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:14:18,797 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:18" (1/1) ... [2024-11-08 17:14:18,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:14:18,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:14:18,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:14:18,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:14:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 17:14:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 17:14:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 17:14:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 17:14:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 17:14:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 17:14:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 17:14:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 17:14:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 17:14:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 17:14:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 17:14:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:14:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 17:14:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 17:14:18,910 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 17:14:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:14:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:14:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 17:14:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 17:14:18,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 17:14:18,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 17:14:18,913 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 17:14:18,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:14:18,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:14:18,916 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 17:14:19,200 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:14:19,203 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:14:19,661 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:14:19,661 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:14:20,302 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:14:20,302 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-08 17:14:20,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:14:20 BoogieIcfgContainer [2024-11-08 17:14:20,303 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:14:20,306 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:14:20,307 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:14:20,310 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:14:20,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:14:17" (1/3) ... [2024-11-08 17:14:20,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f857c4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:14:20, skipping insertion in model container [2024-11-08 17:14:20,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:18" (2/3) ... [2024-11-08 17:14:20,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f857c4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:14:20, skipping insertion in model container [2024-11-08 17:14:20,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:14:20" (3/3) ... [2024-11-08 17:14:20,314 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_12-ptr_racefree.i [2024-11-08 17:14:20,337 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:14:20,337 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-08 17:14:20,337 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:14:20,395 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 17:14:20,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 66 transitions, 139 flow [2024-11-08 17:14:20,511 INFO L124 PetriNetUnfolderBase]: 15/87 cut-off events. [2024-11-08 17:14:20,512 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:14:20,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 87 events. 15/87 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 243 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 57. Up to 4 conditions per place. [2024-11-08 17:14:20,517 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 66 transitions, 139 flow [2024-11-08 17:14:20,522 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 65 transitions, 137 flow [2024-11-08 17:14:20,534 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:14:20,542 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3fbe7919, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:14:20,542 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-08 17:14:20,552 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:14:20,553 INFO L124 PetriNetUnfolderBase]: 1/14 cut-off events. [2024-11-08 17:14:20,553 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:14:20,553 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:14:20,554 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 17:14:20,555 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:14:20,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:20,561 INFO L85 PathProgramCache]: Analyzing trace with hash 878803015, now seen corresponding path program 1 times [2024-11-08 17:14:20,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:20,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135735658] [2024-11-08 17:14:20,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:20,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:21,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:14:21,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:14:21,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135735658] [2024-11-08 17:14:21,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135735658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:14:21,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:14:21,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:14:21,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356276356] [2024-11-08 17:14:21,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:14:21,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:14:21,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:14:21,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:14:21,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:14:21,314 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 66 [2024-11-08 17:14:21,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 65 transitions, 137 flow. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:21,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:14:21,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 66 [2024-11-08 17:14:21,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:14:21,696 INFO L124 PetriNetUnfolderBase]: 180/473 cut-off events. [2024-11-08 17:14:21,696 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:14:21,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 833 conditions, 473 events. 180/473 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2206 event pairs, 22 based on Foata normal form. 83/529 useless extension candidates. Maximal degree in co-relation 803. Up to 315 conditions per place. [2024-11-08 17:14:21,707 INFO L140 encePairwiseOnDemand]: 51/66 looper letters, 51 selfloop transitions, 3 changer transitions 0/80 dead transitions. [2024-11-08 17:14:21,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 80 transitions, 275 flow [2024-11-08 17:14:21,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:14:21,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:14:21,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 182 transitions. [2024-11-08 17:14:21,728 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6893939393939394 [2024-11-08 17:14:21,731 INFO L175 Difference]: Start difference. First operand has 58 places, 65 transitions, 137 flow. Second operand 4 states and 182 transitions. [2024-11-08 17:14:21,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 80 transitions, 275 flow [2024-11-08 17:14:21,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 80 transitions, 275 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:14:21,744 INFO L231 Difference]: Finished difference. Result has 60 places, 55 transitions, 129 flow [2024-11-08 17:14:21,747 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=129, PETRI_PLACES=60, PETRI_TRANSITIONS=55} [2024-11-08 17:14:21,751 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 2 predicate places. [2024-11-08 17:14:21,752 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 55 transitions, 129 flow [2024-11-08 17:14:21,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:21,753 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:14:21,753 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 17:14:21,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:14:21,754 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:14:21,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:21,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1146613062, now seen corresponding path program 1 times [2024-11-08 17:14:21,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:21,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645218363] [2024-11-08 17:14:21,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:21,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:14:21,844 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:14:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:14:21,948 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:14:21,948 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:14:21,950 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-08 17:14:21,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-08 17:14:21,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-08 17:14:21,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-08 17:14:21,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-08 17:14:21,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-08 17:14:21,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-08 17:14:21,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-08 17:14:21,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-08 17:14:21,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-08 17:14:21,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-08 17:14:21,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-08 17:14:21,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-08 17:14:21,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:14:21,961 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 17:14:21,966 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:14:21,967 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 17:14:22,022 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 17:14:22,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 99 transitions, 214 flow [2024-11-08 17:14:22,074 INFO L124 PetriNetUnfolderBase]: 28/163 cut-off events. [2024-11-08 17:14:22,074 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 17:14:22,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 163 events. 28/163 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 549 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 100. Up to 8 conditions per place. [2024-11-08 17:14:22,077 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 99 transitions, 214 flow [2024-11-08 17:14:22,081 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 99 transitions, 214 flow [2024-11-08 17:14:22,084 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:14:22,086 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3fbe7919, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:14:22,086 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-08 17:14:22,092 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:14:22,092 INFO L124 PetriNetUnfolderBase]: 1/14 cut-off events. [2024-11-08 17:14:22,093 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:14:22,093 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:14:22,093 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 17:14:22,093 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 17:14:22,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:22,097 INFO L85 PathProgramCache]: Analyzing trace with hash -487372346, now seen corresponding path program 1 times [2024-11-08 17:14:22,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:22,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534171726] [2024-11-08 17:14:22,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:22,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:22,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:14:22,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:14:22,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534171726] [2024-11-08 17:14:22,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534171726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:14:22,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:14:22,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:14:22,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360354196] [2024-11-08 17:14:22,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:14:22,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:14:22,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:14:22,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:14:22,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:14:22,329 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 99 [2024-11-08 17:14:22,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 99 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:22,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:14:22,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 99 [2024-11-08 17:14:22,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:14:24,366 INFO L124 PetriNetUnfolderBase]: 5353/11294 cut-off events. [2024-11-08 17:14:24,367 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2024-11-08 17:14:24,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19572 conditions, 11294 events. 5353/11294 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 94846 event pairs, 2388 based on Foata normal form. 1935/12300 useless extension candidates. Maximal degree in co-relation 1446. Up to 8166 conditions per place. [2024-11-08 17:14:24,541 INFO L140 encePairwiseOnDemand]: 78/99 looper letters, 70 selfloop transitions, 3 changer transitions 0/112 dead transitions. [2024-11-08 17:14:24,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 112 transitions, 386 flow [2024-11-08 17:14:24,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:14:24,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:14:24,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 259 transitions. [2024-11-08 17:14:24,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6540404040404041 [2024-11-08 17:14:24,549 INFO L175 Difference]: Start difference. First operand has 86 places, 99 transitions, 214 flow. Second operand 4 states and 259 transitions. [2024-11-08 17:14:24,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 112 transitions, 386 flow [2024-11-08 17:14:24,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 112 transitions, 386 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:14:24,557 INFO L231 Difference]: Finished difference. Result has 91 places, 87 transitions, 212 flow [2024-11-08 17:14:24,558 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=212, PETRI_PLACES=91, PETRI_TRANSITIONS=87} [2024-11-08 17:14:24,559 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, 5 predicate places. [2024-11-08 17:14:24,559 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 87 transitions, 212 flow [2024-11-08 17:14:24,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:24,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:14:24,560 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:14:24,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:14:24,561 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 17:14:24,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:24,563 INFO L85 PathProgramCache]: Analyzing trace with hash -68210604, now seen corresponding path program 1 times [2024-11-08 17:14:24,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:24,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240186158] [2024-11-08 17:14:24,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:24,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:24,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:24,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:14:24,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:14:24,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240186158] [2024-11-08 17:14:24,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240186158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:14:24,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:14:24,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:14:24,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355728308] [2024-11-08 17:14:24,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:14:24,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:14:24,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:14:24,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:14:24,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:14:24,893 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 99 [2024-11-08 17:14:24,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 87 transitions, 212 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:24,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:14:24,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 99 [2024-11-08 17:14:24,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:14:27,416 INFO L124 PetriNetUnfolderBase]: 6328/13327 cut-off events. [2024-11-08 17:14:27,417 INFO L125 PetriNetUnfolderBase]: For 325/709 co-relation queries the response was YES. [2024-11-08 17:14:27,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23480 conditions, 13327 events. 6328/13327 cut-off events. For 325/709 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 118786 event pairs, 1146 based on Foata normal form. 270/12798 useless extension candidates. Maximal degree in co-relation 23372. Up to 5598 conditions per place. [2024-11-08 17:14:27,541 INFO L140 encePairwiseOnDemand]: 89/99 looper letters, 158 selfloop transitions, 17 changer transitions 0/219 dead transitions. [2024-11-08 17:14:27,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 219 transitions, 876 flow [2024-11-08 17:14:27,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:14:27,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 17:14:27,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 478 transitions. [2024-11-08 17:14:27,546 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6897546897546898 [2024-11-08 17:14:27,546 INFO L175 Difference]: Start difference. First operand has 91 places, 87 transitions, 212 flow. Second operand 7 states and 478 transitions. [2024-11-08 17:14:27,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 219 transitions, 876 flow [2024-11-08 17:14:27,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 219 transitions, 871 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:14:27,555 INFO L231 Difference]: Finished difference. Result has 102 places, 104 transitions, 342 flow [2024-11-08 17:14:27,556 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=342, PETRI_PLACES=102, PETRI_TRANSITIONS=104} [2024-11-08 17:14:27,557 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, 16 predicate places. [2024-11-08 17:14:27,558 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 104 transitions, 342 flow [2024-11-08 17:14:27,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:27,559 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:14:27,559 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 17:14:27,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:14:27,560 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 17:14:27,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:27,561 INFO L85 PathProgramCache]: Analyzing trace with hash 317248046, now seen corresponding path program 1 times [2024-11-08 17:14:27,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:27,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979034389] [2024-11-08 17:14:27,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:27,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:27,769 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:14:27,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:14:27,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979034389] [2024-11-08 17:14:27,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979034389] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:14:27,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296976426] [2024-11-08 17:14:27,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:27,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:14:27,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:14:27,776 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:14:27,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:14:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:28,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:14:28,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:14:28,174 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:14:28,176 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:14:28,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296976426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:14:28,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:14:28,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 17:14:28,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569027784] [2024-11-08 17:14:28,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:14:28,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:14:28,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:14:28,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:14:28,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:14:28,211 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 99 [2024-11-08 17:14:28,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 104 transitions, 342 flow. Second operand has 6 states, 6 states have (on average 40.5) internal successors, (243), 6 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:28,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:14:28,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 99 [2024-11-08 17:14:28,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:14:30,952 INFO L124 PetriNetUnfolderBase]: 7420/14950 cut-off events. [2024-11-08 17:14:30,953 INFO L125 PetriNetUnfolderBase]: For 4900/4900 co-relation queries the response was YES. [2024-11-08 17:14:31,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30911 conditions, 14950 events. 7420/14950 cut-off events. For 4900/4900 co-relation queries the response was YES. Maximal size of possible extension queue 450. Compared 128329 event pairs, 1550 based on Foata normal form. 177/14315 useless extension candidates. Maximal degree in co-relation 30027. Up to 8145 conditions per place. [2024-11-08 17:14:31,252 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 147 selfloop transitions, 6 changer transitions 0/192 dead transitions. [2024-11-08 17:14:31,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 192 transitions, 934 flow [2024-11-08 17:14:31,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:14:31,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:14:31,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 355 transitions. [2024-11-08 17:14:31,258 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5976430976430976 [2024-11-08 17:14:31,258 INFO L175 Difference]: Start difference. First operand has 102 places, 104 transitions, 342 flow. Second operand 6 states and 355 transitions. [2024-11-08 17:14:31,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 192 transitions, 934 flow [2024-11-08 17:14:31,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 192 transitions, 934 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:14:31,298 INFO L231 Difference]: Finished difference. Result has 106 places, 103 transitions, 350 flow [2024-11-08 17:14:31,300 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=350, PETRI_PLACES=106, PETRI_TRANSITIONS=103} [2024-11-08 17:14:31,301 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, 20 predicate places. [2024-11-08 17:14:31,302 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 103 transitions, 350 flow [2024-11-08 17:14:31,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.5) internal successors, (243), 6 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:31,303 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:14:31,303 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-08 17:14:31,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:14:31,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89812401-e880-471c-9965-b2be8929ff3d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:14:31,509 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 17:14:31,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:31,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1244755398, now seen corresponding path program 1 times [2024-11-08 17:14:31,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:31,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146922728] [2024-11-08 17:14:31,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:31,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:31,646 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:14:31,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:14:31,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146922728] [2024-11-08 17:14:31,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146922728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:14:31,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:14:31,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:14:31,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213421209] [2024-11-08 17:14:31,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:14:31,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:14:31,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:14:31,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:14:31,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:14:31,667 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 99 [2024-11-08 17:14:31,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 103 transitions, 350 flow. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:31,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:14:31,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 99 [2024-11-08 17:14:31,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:14:33,972 INFO L124 PetriNetUnfolderBase]: 7242/14643 cut-off events. [2024-11-08 17:14:33,972 INFO L125 PetriNetUnfolderBase]: For 5690/5690 co-relation queries the response was YES. [2024-11-08 17:14:34,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30622 conditions, 14643 events. 7242/14643 cut-off events. For 5690/5690 co-relation queries the response was YES. Maximal size of possible extension queue 447. Compared 125795 event pairs, 1799 based on Foata normal form. 367/14448 useless extension candidates. Maximal degree in co-relation 29777. Up to 9203 conditions per place. [2024-11-08 17:14:34,079 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 122 selfloop transitions, 6 changer transitions 0/166 dead transitions. [2024-11-08 17:14:34,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 166 transitions, 812 flow [2024-11-08 17:14:34,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:14:34,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:14:34,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 247 transitions. [2024-11-08 17:14:34,211 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6237373737373737 [2024-11-08 17:14:34,212 INFO L175 Difference]: Start difference. First operand has 106 places, 103 transitions, 350 flow. Second operand 4 states and 247 transitions. [2024-11-08 17:14:34,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 166 transitions, 812 flow [2024-11-08 17:14:34,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 166 transitions, 802 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 17:14:34,246 INFO L231 Difference]: Finished difference. Result has 105 places, 102 transitions, 352 flow [2024-11-08 17:14:34,246 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=352, PETRI_PLACES=105, PETRI_TRANSITIONS=102} [2024-11-08 17:14:34,247 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, 19 predicate places. [2024-11-08 17:14:34,248 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 102 transitions, 352 flow [2024-11-08 17:14:34,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:34,248 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:14:34,249 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1] [2024-11-08 17:14:34,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:14:34,249 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 17:14:34,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:34,250 INFO L85 PathProgramCache]: Analyzing trace with hash -239033856, now seen corresponding path program 1 times [2024-11-08 17:14:34,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:34,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370840151] [2024-11-08 17:14:34,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:34,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:14:34,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:14:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:14:34,355 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:14:34,355 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:14:34,356 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-08 17:14:34,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2024-11-08 17:14:34,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2024-11-08 17:14:34,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2024-11-08 17:14:34,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2024-11-08 17:14:34,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2024-11-08 17:14:34,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2024-11-08 17:14:34,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2024-11-08 17:14:34,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2024-11-08 17:14:34,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2024-11-08 17:14:34,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2024-11-08 17:14:34,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2024-11-08 17:14:34,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2024-11-08 17:14:34,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2024-11-08 17:14:34,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2024-11-08 17:14:34,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2024-11-08 17:14:34,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2024-11-08 17:14:34,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:14:34,362 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-08 17:14:34,363 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:14:34,363 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-08 17:14:34,426 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-08 17:14:34,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 132 transitions, 291 flow [2024-11-08 17:14:34,500 INFO L124 PetriNetUnfolderBase]: 46/264 cut-off events. [2024-11-08 17:14:34,501 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-08 17:14:34,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 264 events. 46/264 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1014 event pairs, 1 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 178. Up to 16 conditions per place. [2024-11-08 17:14:34,504 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 132 transitions, 291 flow [2024-11-08 17:14:34,509 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 132 transitions, 291 flow [2024-11-08 17:14:34,514 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:14:34,515 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3fbe7919, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:14:34,515 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-08 17:14:34,526 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:14:34,528 INFO L124 PetriNetUnfolderBase]: 1/13 cut-off events. [2024-11-08 17:14:34,528 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:14:34,528 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:14:34,529 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 17:14:34,529 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 17:14:34,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:34,530 INFO L85 PathProgramCache]: Analyzing trace with hash -877293659, now seen corresponding path program 1 times [2024-11-08 17:14:34,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:34,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67944173] [2024-11-08 17:14:34,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:34,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:34,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:14:34,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:14:34,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67944173] [2024-11-08 17:14:34,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67944173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:14:34,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:14:34,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:14:34,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687223607] [2024-11-08 17:14:34,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:14:34,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:14:34,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:14:34,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:14:34,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:14:34,682 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 132 [2024-11-08 17:14:34,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 132 transitions, 291 flow. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:34,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:14:34,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 132 [2024-11-08 17:14:34,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:14:56,209 INFO L124 PetriNetUnfolderBase]: 106594/190653 cut-off events. [2024-11-08 17:14:56,210 INFO L125 PetriNetUnfolderBase]: For 2114/2114 co-relation queries the response was YES. [2024-11-08 17:14:56,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337471 conditions, 190653 events. 106594/190653 cut-off events. For 2114/2114 co-relation queries the response was YES. Maximal size of possible extension queue 3954. Compared 2007051 event pairs, 67345 based on Foata normal form. 37212/214482 useless extension candidates. Maximal degree in co-relation 19979. Up to 145469 conditions per place. [2024-11-08 17:14:57,471 INFO L140 encePairwiseOnDemand]: 105/132 looper letters, 84 selfloop transitions, 3 changer transitions 0/139 dead transitions. [2024-11-08 17:14:57,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 139 transitions, 479 flow [2024-11-08 17:14:57,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:14:57,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:14:57,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2024-11-08 17:14:57,473 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6268939393939394 [2024-11-08 17:14:57,473 INFO L175 Difference]: Start difference. First operand has 114 places, 132 transitions, 291 flow. Second operand 4 states and 331 transitions. [2024-11-08 17:14:57,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 139 transitions, 479 flow [2024-11-08 17:14:57,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 139 transitions, 479 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:14:57,479 INFO L231 Difference]: Finished difference. Result has 119 places, 114 transitions, 277 flow [2024-11-08 17:14:57,480 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=277, PETRI_PLACES=119, PETRI_TRANSITIONS=114} [2024-11-08 17:14:57,480 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 5 predicate places. [2024-11-08 17:14:57,481 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 114 transitions, 277 flow [2024-11-08 17:14:57,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:57,481 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:14:57,482 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:14:57,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:14:57,482 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 17:14:57,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:57,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1141866921, now seen corresponding path program 1 times [2024-11-08 17:14:57,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:57,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948898503] [2024-11-08 17:14:57,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:57,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:57,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:14:57,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:14:57,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948898503] [2024-11-08 17:14:57,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948898503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:14:57,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:14:57,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:14:57,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437546020] [2024-11-08 17:14:57,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:14:57,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:14:57,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:14:57,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:14:57,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:14:57,677 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 132 [2024-11-08 17:14:57,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 114 transitions, 277 flow. Second operand has 5 states, 5 states have (on average 57.6) internal successors, (288), 5 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:57,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:14:57,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 132 [2024-11-08 17:14:57,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand