./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e7e1d85f63f5db62c0766d87dec12398108cf8053838b2df867ce8148d55e54 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 22:07:42,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 22:07:42,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 22:07:42,749 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 22:07:42,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 22:07:42,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 22:07:42,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 22:07:42,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 22:07:42,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 22:07:42,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 22:07:42,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 22:07:42,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 22:07:42,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 22:07:42,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 22:07:42,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 22:07:42,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 22:07:42,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 22:07:42,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 22:07:42,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 22:07:42,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 22:07:42,790 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 22:07:42,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 22:07:42,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 22:07:42,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 22:07:42,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 22:07:42,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 22:07:42,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 22:07:42,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 22:07:42,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 22:07:42,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 22:07:42,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 22:07:42,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 22:07:42,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 22:07:42,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 22:07:42,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 22:07:42,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 22:07:42,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 22:07:42,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 22:07:42,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 22:07:42,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 22:07:42,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 22:07:42,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 22:07:42,814 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 22:07:42,842 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 22:07:42,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 22:07:42,843 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 22:07:42,843 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 22:07:42,844 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 22:07:42,844 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 22:07:42,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 22:07:42,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 22:07:42,845 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 22:07:42,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 22:07:42,846 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 22:07:42,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 22:07:42,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 22:07:42,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 22:07:42,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 22:07:42,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 22:07:42,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 22:07:42,847 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 22:07:42,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 22:07:42,849 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 22:07:42,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 22:07:42,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 22:07:42,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 22:07:42,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 22:07:42,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:07:42,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 22:07:42,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 22:07:42,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 22:07:42,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 22:07:42,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 22:07:42,851 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 22:07:42,851 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 22:07:42,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 22:07:42,852 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e7e1d85f63f5db62c0766d87dec12398108cf8053838b2df867ce8148d55e54 [2022-07-13 22:07:43,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 22:07:43,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 22:07:43,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 22:07:43,119 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 22:07:43,120 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 22:07:43,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2022-07-13 22:07:43,174 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb7507944/f4c33738bd5644a5aae91f66e4611468/FLAGabfb5dac0 [2022-07-13 22:07:43,635 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 22:07:43,635 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2022-07-13 22:07:43,642 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb7507944/f4c33738bd5644a5aae91f66e4611468/FLAGabfb5dac0 [2022-07-13 22:07:43,668 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb7507944/f4c33738bd5644a5aae91f66e4611468 [2022-07-13 22:07:43,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 22:07:43,673 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 22:07:43,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 22:07:43,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 22:07:43,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 22:07:43,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:07:43" (1/1) ... [2022-07-13 22:07:43,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@749ba7ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:43, skipping insertion in model container [2022-07-13 22:07:43,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:07:43" (1/1) ... [2022-07-13 22:07:43,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 22:07:43,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 22:07:43,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c[3057,3070] [2022-07-13 22:07:43,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 22:07:43,923 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 22:07:43,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c[3057,3070] [2022-07-13 22:07:43,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 22:07:43,986 INFO L208 MainTranslator]: Completed translation [2022-07-13 22:07:43,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:43 WrapperNode [2022-07-13 22:07:43,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 22:07:43,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 22:07:43,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 22:07:43,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 22:07:43,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:43" (1/1) ... [2022-07-13 22:07:44,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:43" (1/1) ... [2022-07-13 22:07:44,041 INFO L137 Inliner]: procedures = 25, calls = 53, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 122 [2022-07-13 22:07:44,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 22:07:44,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 22:07:44,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 22:07:44,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 22:07:44,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:43" (1/1) ... [2022-07-13 22:07:44,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:43" (1/1) ... [2022-07-13 22:07:44,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:43" (1/1) ... [2022-07-13 22:07:44,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:43" (1/1) ... [2022-07-13 22:07:44,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:43" (1/1) ... [2022-07-13 22:07:44,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:43" (1/1) ... [2022-07-13 22:07:44,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:43" (1/1) ... [2022-07-13 22:07:44,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 22:07:44,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 22:07:44,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 22:07:44,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 22:07:44,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:43" (1/1) ... [2022-07-13 22:07:44,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:07:44,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:07:44,124 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 22:07:44,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 22:07:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 22:07:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 22:07:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 22:07:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 22:07:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-13 22:07:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-13 22:07:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-13 22:07:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-13 22:07:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-07-13 22:07:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-07-13 22:07:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 22:07:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-13 22:07:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-13 22:07:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 22:07:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 22:07:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 22:07:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 22:07:44,172 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 22:07:44,294 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 22:07:44,295 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 22:07:44,613 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 22:07:44,691 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 22:07:44,695 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-13 22:07:44,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:07:44 BoogieIcfgContainer [2022-07-13 22:07:44,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 22:07:44,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 22:07:44,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 22:07:44,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 22:07:44,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 10:07:43" (1/3) ... [2022-07-13 22:07:44,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7956b6e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:07:44, skipping insertion in model container [2022-07-13 22:07:44,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:07:43" (2/3) ... [2022-07-13 22:07:44,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7956b6e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:07:44, skipping insertion in model container [2022-07-13 22:07:44,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:07:44" (3/3) ... [2022-07-13 22:07:44,708 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-min-max-1.wvr.c [2022-07-13 22:07:44,715 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 22:07:44,724 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 22:07:44,724 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 22:07:44,725 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 22:07:44,820 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-13 22:07:44,869 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 174 places, 176 transitions, 376 flow [2022-07-13 22:07:44,952 INFO L129 PetriNetUnfolder]: 12/173 cut-off events. [2022-07-13 22:07:44,953 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-13 22:07:44,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 173 events. 12/173 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 0 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 142. Up to 2 conditions per place. [2022-07-13 22:07:44,957 INFO L82 GeneralOperation]: Start removeDead. Operand has 174 places, 176 transitions, 376 flow [2022-07-13 22:07:44,964 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 162 transitions, 342 flow [2022-07-13 22:07:44,979 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 22:07:44,985 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5b9bce4a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@137989d6 [2022-07-13 22:07:44,985 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-13 22:07:45,022 INFO L129 PetriNetUnfolder]: 12/161 cut-off events. [2022-07-13 22:07:45,027 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-13 22:07:45,027 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:07:45,028 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:07:45,028 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 22:07:45,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:07:45,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1201893929, now seen corresponding path program 1 times [2022-07-13 22:07:45,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:07:45,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278334711] [2022-07-13 22:07:45,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:07:45,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:07:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:07:45,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 22:07:45,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:07:45,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278334711] [2022-07-13 22:07:45,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278334711] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:07:45,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:07:45,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 22:07:45,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047114556] [2022-07-13 22:07:45,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:07:45,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 22:07:45,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:07:45,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 22:07:45,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-07-13 22:07:45,690 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 176 [2022-07-13 22:07:45,696 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 162 transitions, 342 flow. Second operand has 8 states, 8 states have (on average 120.75) internal successors, (966), 8 states have internal predecessors, (966), 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) [2022-07-13 22:07:45,697 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:07:45,697 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 176 [2022-07-13 22:07:45,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 22:07:45,896 INFO L129 PetriNetUnfolder]: 80/356 cut-off events. [2022-07-13 22:07:45,896 INFO L130 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2022-07-13 22:07:45,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 597 conditions, 356 events. 80/356 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1249 event pairs, 64 based on Foata normal form. 5/313 useless extension candidates. Maximal degree in co-relation 395. Up to 154 conditions per place. [2022-07-13 22:07:45,908 INFO L132 encePairwiseOnDemand]: 160/176 looper letters, 43 selfloop transitions, 7 changer transitions 5/158 dead transitions. [2022-07-13 22:07:45,909 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 158 transitions, 444 flow [2022-07-13 22:07:45,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 22:07:45,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-07-13 22:07:45,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 993 transitions. [2022-07-13 22:07:45,931 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7052556818181818 [2022-07-13 22:07:45,932 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 993 transitions. [2022-07-13 22:07:45,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 993 transitions. [2022-07-13 22:07:45,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 22:07:45,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 993 transitions. [2022-07-13 22:07:45,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 124.125) internal successors, (993), 8 states have internal predecessors, (993), 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) [2022-07-13 22:07:45,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 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) [2022-07-13 22:07:45,961 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 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) [2022-07-13 22:07:45,963 INFO L186 Difference]: Start difference. First operand has 160 places, 162 transitions, 342 flow. Second operand 8 states and 993 transitions. [2022-07-13 22:07:45,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 158 transitions, 444 flow [2022-07-13 22:07:45,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 158 transitions, 432 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-07-13 22:07:45,974 INFO L242 Difference]: Finished difference. Result has 162 places, 150 transitions, 326 flow [2022-07-13 22:07:45,976 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=326, PETRI_PLACES=162, PETRI_TRANSITIONS=150} [2022-07-13 22:07:45,980 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 2 predicate places. [2022-07-13 22:07:45,981 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 150 transitions, 326 flow [2022-07-13 22:07:45,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 120.75) internal successors, (966), 8 states have internal predecessors, (966), 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) [2022-07-13 22:07:45,982 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:07:45,983 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:07:45,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 22:07:45,984 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 22:07:45,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:07:45,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1093274316, now seen corresponding path program 1 times [2022-07-13 22:07:45,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:07:45,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220551919] [2022-07-13 22:07:45,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:07:45,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:07:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:07:46,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 22:07:46,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:07:46,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220551919] [2022-07-13 22:07:46,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220551919] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:07:46,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880962899] [2022-07-13 22:07:46,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:07:46,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:07:46,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:07:46,214 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:07:46,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 22:07:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:07:46,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 22:07:46,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:07:46,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 22:07:46,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:07:46,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 22:07:46,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880962899] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-13 22:07:46,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-13 22:07:46,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-07-13 22:07:46,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613514153] [2022-07-13 22:07:46,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:07:46,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 22:07:46,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:07:46,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 22:07:46,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-07-13 22:07:46,743 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 176 [2022-07-13 22:07:46,744 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 150 transitions, 326 flow. Second operand has 7 states, 7 states have (on average 138.71428571428572) internal successors, (971), 7 states have internal predecessors, (971), 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) [2022-07-13 22:07:46,745 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:07:46,745 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 176 [2022-07-13 22:07:46,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 22:07:46,936 INFO L129 PetriNetUnfolder]: 134/508 cut-off events. [2022-07-13 22:07:46,936 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-07-13 22:07:46,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 802 conditions, 508 events. 134/508 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2222 event pairs, 85 based on Foata normal form. 0/456 useless extension candidates. Maximal degree in co-relation 706. Up to 111 conditions per place. [2022-07-13 22:07:46,940 INFO L132 encePairwiseOnDemand]: 168/176 looper letters, 34 selfloop transitions, 7 changer transitions 0/158 dead transitions. [2022-07-13 22:07:46,941 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 158 transitions, 426 flow [2022-07-13 22:07:46,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 22:07:46,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-13 22:07:46,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 986 transitions. [2022-07-13 22:07:46,944 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8003246753246753 [2022-07-13 22:07:46,944 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 986 transitions. [2022-07-13 22:07:46,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 986 transitions. [2022-07-13 22:07:46,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 22:07:46,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 986 transitions. [2022-07-13 22:07:46,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 140.85714285714286) internal successors, (986), 7 states have internal predecessors, (986), 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) [2022-07-13 22:07:46,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 176.0) internal successors, (1408), 8 states have internal predecessors, (1408), 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) [2022-07-13 22:07:46,952 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 176.0) internal successors, (1408), 8 states have internal predecessors, (1408), 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) [2022-07-13 22:07:46,952 INFO L186 Difference]: Start difference. First operand has 162 places, 150 transitions, 326 flow. Second operand 7 states and 986 transitions. [2022-07-13 22:07:46,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 158 transitions, 426 flow [2022-07-13 22:07:46,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 158 transitions, 414 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-07-13 22:07:46,960 INFO L242 Difference]: Finished difference. Result has 160 places, 152 transitions, 347 flow [2022-07-13 22:07:46,961 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=347, PETRI_PLACES=160, PETRI_TRANSITIONS=152} [2022-07-13 22:07:46,961 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 0 predicate places. [2022-07-13 22:07:46,961 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 152 transitions, 347 flow [2022-07-13 22:07:46,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 138.71428571428572) internal successors, (971), 7 states have internal predecessors, (971), 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) [2022-07-13 22:07:46,962 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:07:46,963 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:07:46,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 22:07:47,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:07:47,177 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 22:07:47,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:07:47,177 INFO L85 PathProgramCache]: Analyzing trace with hash 6752642, now seen corresponding path program 1 times [2022-07-13 22:07:47,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:07:47,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529125270] [2022-07-13 22:07:47,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:07:47,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:07:47,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:07:47,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 22:07:47,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:07:47,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529125270] [2022-07-13 22:07:47,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529125270] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:07:47,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040990500] [2022-07-13 22:07:47,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:07:47,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:07:47,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:07:47,303 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:07:47,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 22:07:47,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:07:47,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 22:07:47,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:07:47,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 22:07:47,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:07:47,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 22:07:47,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040990500] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-13 22:07:47,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-13 22:07:47,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-07-13 22:07:47,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178401573] [2022-07-13 22:07:47,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:07:47,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 22:07:47,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:07:47,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 22:07:47,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-07-13 22:07:47,708 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 176 [2022-07-13 22:07:47,710 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 152 transitions, 347 flow. Second operand has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 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) [2022-07-13 22:07:47,710 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:07:47,710 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 176 [2022-07-13 22:07:47,711 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 22:07:47,854 INFO L129 PetriNetUnfolder]: 136/494 cut-off events. [2022-07-13 22:07:47,854 INFO L130 PetriNetUnfolder]: For 105/141 co-relation queries the response was YES. [2022-07-13 22:07:47,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 885 conditions, 494 events. 136/494 cut-off events. For 105/141 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2093 event pairs, 57 based on Foata normal form. 36/498 useless extension candidates. Maximal degree in co-relation 784. Up to 119 conditions per place. [2022-07-13 22:07:47,861 INFO L132 encePairwiseOnDemand]: 168/176 looper letters, 36 selfloop transitions, 7 changer transitions 0/160 dead transitions. [2022-07-13 22:07:47,861 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 160 transitions, 459 flow [2022-07-13 22:07:47,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 22:07:47,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-13 22:07:47,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 986 transitions. [2022-07-13 22:07:47,865 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8003246753246753 [2022-07-13 22:07:47,865 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 986 transitions. [2022-07-13 22:07:47,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 986 transitions. [2022-07-13 22:07:47,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 22:07:47,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 986 transitions. [2022-07-13 22:07:47,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 140.85714285714286) internal successors, (986), 7 states have internal predecessors, (986), 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) [2022-07-13 22:07:47,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 176.0) internal successors, (1408), 8 states have internal predecessors, (1408), 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) [2022-07-13 22:07:47,873 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 176.0) internal successors, (1408), 8 states have internal predecessors, (1408), 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) [2022-07-13 22:07:47,874 INFO L186 Difference]: Start difference. First operand has 160 places, 152 transitions, 347 flow. Second operand 7 states and 986 transitions. [2022-07-13 22:07:47,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 160 transitions, 459 flow [2022-07-13 22:07:47,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 160 transitions, 450 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-13 22:07:47,882 INFO L242 Difference]: Finished difference. Result has 164 places, 153 transitions, 366 flow [2022-07-13 22:07:47,882 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=339, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=366, PETRI_PLACES=164, PETRI_TRANSITIONS=153} [2022-07-13 22:07:47,884 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 4 predicate places. [2022-07-13 22:07:47,885 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 153 transitions, 366 flow [2022-07-13 22:07:47,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 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) [2022-07-13 22:07:47,886 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:07:47,886 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:07:47,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 22:07:48,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-13 22:07:48,100 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 22:07:48,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:07:48,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1616648338, now seen corresponding path program 1 times [2022-07-13 22:07:48,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:07:48,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703853784] [2022-07-13 22:07:48,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:07:48,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:07:48,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:07:48,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 22:07:48,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:07:48,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703853784] [2022-07-13 22:07:48,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703853784] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:07:48,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:07:48,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 22:07:48,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446476819] [2022-07-13 22:07:48,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:07:48,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 22:07:48,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:07:48,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 22:07:48,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 22:07:48,267 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 176 [2022-07-13 22:07:48,268 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 153 transitions, 366 flow. Second operand has 5 states, 5 states have (on average 125.6) internal successors, (628), 5 states have internal predecessors, (628), 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) [2022-07-13 22:07:48,268 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:07:48,268 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 176 [2022-07-13 22:07:48,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 22:07:48,412 INFO L129 PetriNetUnfolder]: 94/428 cut-off events. [2022-07-13 22:07:48,412 INFO L130 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-07-13 22:07:48,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 728 conditions, 428 events. 94/428 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1549 event pairs, 45 based on Foata normal form. 1/399 useless extension candidates. Maximal degree in co-relation 619. Up to 137 conditions per place. [2022-07-13 22:07:48,416 INFO L132 encePairwiseOnDemand]: 169/176 looper letters, 48 selfloop transitions, 3 changer transitions 4/163 dead transitions. [2022-07-13 22:07:48,416 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 163 transitions, 498 flow [2022-07-13 22:07:48,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 22:07:48,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-13 22:07:48,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 641 transitions. [2022-07-13 22:07:48,418 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7284090909090909 [2022-07-13 22:07:48,418 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 641 transitions. [2022-07-13 22:07:48,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 641 transitions. [2022-07-13 22:07:48,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 22:07:48,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 641 transitions. [2022-07-13 22:07:48,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.2) internal successors, (641), 5 states have internal predecessors, (641), 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) [2022-07-13 22:07:48,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 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) [2022-07-13 22:07:48,423 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 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) [2022-07-13 22:07:48,423 INFO L186 Difference]: Start difference. First operand has 164 places, 153 transitions, 366 flow. Second operand 5 states and 641 transitions. [2022-07-13 22:07:48,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 163 transitions, 498 flow [2022-07-13 22:07:48,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 163 transitions, 488 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-07-13 22:07:48,427 INFO L242 Difference]: Finished difference. Result has 167 places, 155 transitions, 384 flow [2022-07-13 22:07:48,428 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=384, PETRI_PLACES=167, PETRI_TRANSITIONS=155} [2022-07-13 22:07:48,429 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 7 predicate places. [2022-07-13 22:07:48,429 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 155 transitions, 384 flow [2022-07-13 22:07:48,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 125.6) internal successors, (628), 5 states have internal predecessors, (628), 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) [2022-07-13 22:07:48,430 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:07:48,430 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:07:48,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 22:07:48,430 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 22:07:48,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:07:48,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1309242489, now seen corresponding path program 1 times [2022-07-13 22:07:48,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:07:48,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759229600] [2022-07-13 22:07:48,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:07:48,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:07:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:07:48,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 22:07:48,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:07:48,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759229600] [2022-07-13 22:07:48,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759229600] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:07:48,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071791397] [2022-07-13 22:07:48,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:07:48,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:07:48,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:07:48,828 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:07:48,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 22:07:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:07:48,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 44 conjunts are in the unsatisfiable core [2022-07-13 22:07:48,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:07:49,368 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-13 22:07:49,631 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-13 22:07:49,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:07:49,746 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 16 [2022-07-13 22:07:49,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:07:49,814 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 16 [2022-07-13 22:07:50,060 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-07-13 22:07:50,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 22:07:50,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:07:50,479 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 22:07:50,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071791397] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-13 22:07:50,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-13 22:07:50,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [16, 23] total 39 [2022-07-13 22:07:50,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356806380] [2022-07-13 22:07:50,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:07:50,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 22:07:50,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:07:50,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 22:07:50,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1347, Unknown=0, NotChecked=0, Total=1482 [2022-07-13 22:07:50,485 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 176 [2022-07-13 22:07:50,486 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 155 transitions, 384 flow. Second operand has 10 states, 10 states have (on average 107.1) internal successors, (1071), 10 states have internal predecessors, (1071), 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) [2022-07-13 22:07:50,486 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:07:50,486 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 176 [2022-07-13 22:07:50,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 22:07:51,850 INFO L129 PetriNetUnfolder]: 3759/7565 cut-off events. [2022-07-13 22:07:51,851 INFO L130 PetriNetUnfolder]: For 4577/4579 co-relation queries the response was YES. [2022-07-13 22:07:51,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17439 conditions, 7565 events. 3759/7565 cut-off events. For 4577/4579 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 61607 event pairs, 502 based on Foata normal form. 3/7341 useless extension candidates. Maximal degree in co-relation 17327. Up to 1402 conditions per place. [2022-07-13 22:07:51,909 INFO L132 encePairwiseOnDemand]: 164/176 looper letters, 149 selfloop transitions, 11 changer transitions 83/334 dead transitions. [2022-07-13 22:07:51,909 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 334 transitions, 1465 flow [2022-07-13 22:07:51,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 22:07:51,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-07-13 22:07:51,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1740 transitions. [2022-07-13 22:07:51,915 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6590909090909091 [2022-07-13 22:07:51,915 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1740 transitions. [2022-07-13 22:07:51,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1740 transitions. [2022-07-13 22:07:51,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 22:07:51,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1740 transitions. [2022-07-13 22:07:51,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 116.0) internal successors, (1740), 15 states have internal predecessors, (1740), 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) [2022-07-13 22:07:51,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 176.0) internal successors, (2816), 16 states have internal predecessors, (2816), 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) [2022-07-13 22:07:51,927 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 176.0) internal successors, (2816), 16 states have internal predecessors, (2816), 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) [2022-07-13 22:07:51,927 INFO L186 Difference]: Start difference. First operand has 167 places, 155 transitions, 384 flow. Second operand 15 states and 1740 transitions. [2022-07-13 22:07:51,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 334 transitions, 1465 flow [2022-07-13 22:07:51,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 334 transitions, 1453 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-07-13 22:07:51,966 INFO L242 Difference]: Finished difference. Result has 190 places, 165 transitions, 489 flow [2022-07-13 22:07:51,967 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=489, PETRI_PLACES=190, PETRI_TRANSITIONS=165} [2022-07-13 22:07:51,968 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 30 predicate places. [2022-07-13 22:07:51,968 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 165 transitions, 489 flow [2022-07-13 22:07:51,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 107.1) internal successors, (1071), 10 states have internal predecessors, (1071), 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) [2022-07-13 22:07:51,969 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:07:51,969 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:07:51,991 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-13 22:07:52,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:07:52,182 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 22:07:52,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:07:52,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1173872667, now seen corresponding path program 2 times [2022-07-13 22:07:52,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:07:52,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304134524] [2022-07-13 22:07:52,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:07:52,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:07:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:07:52,490 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 22:07:52,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:07:52,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304134524] [2022-07-13 22:07:52,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304134524] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:07:52,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125527551] [2022-07-13 22:07:52,494 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 22:07:52,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:07:52,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:07:52,496 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:07:52,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 22:07:52,712 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 22:07:52,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:07:52,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-13 22:07:52,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:07:53,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:07:53,099 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 16 [2022-07-13 22:07:53,192 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 22:07:53,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 63 [2022-07-13 22:07:53,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 22:07:53,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:07:53,603 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_164 (Array Int Int))) (<= c_~min~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_164) c_~A~0.base) c_~A~0.offset))) is different from false [2022-07-13 22:07:53,672 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((thread1Thread1of1ForFork0_~i~0 Int) (v_ArrVal_164 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset (* thread1Thread1of1ForFork0_~i~0 4))))) (or (< c_~min~0 .cse0) (<= .cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_164) c_~A~0.base) c_~A~0.offset))))) (or (forall ((v_ArrVal_164 (Array Int Int))) (<= c_~min~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_164) c_~A~0.base) c_~A~0.offset))) (forall ((thread1Thread1of1ForFork0_~i~0 Int)) (not (< c_~min~0 (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset (* thread1Thread1of1ForFork0_~i~0 4)))))))) is different from false [2022-07-13 22:07:53,728 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 22:07:53,729 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 93 treesize of output 89 [2022-07-13 22:07:53,737 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 5 treesize of output 3 [2022-07-13 22:07:53,750 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 5 treesize of output 3 [2022-07-13 22:07:54,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2022-07-13 22:07:54,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125527551] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 22:07:54,011 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 22:07:54,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 16] total 34 [2022-07-13 22:07:54,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996957659] [2022-07-13 22:07:54,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 22:07:54,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-07-13 22:07:54,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:07:54,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-07-13 22:07:54,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=901, Unknown=2, NotChecked=122, Total=1122 [2022-07-13 22:07:54,016 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 176 [2022-07-13 22:07:54,019 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 165 transitions, 489 flow. Second operand has 34 states, 34 states have (on average 89.97058823529412) internal successors, (3059), 34 states have internal predecessors, (3059), 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) [2022-07-13 22:07:54,022 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 22:07:54,022 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 176 [2022-07-13 22:07:54,022 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 22:07:55,402 INFO L129 PetriNetUnfolder]: 1281/4211 cut-off events. [2022-07-13 22:07:55,402 INFO L130 PetriNetUnfolder]: For 6143/6586 co-relation queries the response was YES. [2022-07-13 22:07:55,430 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10855 conditions, 4211 events. 1281/4211 cut-off events. For 6143/6586 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 39608 event pairs, 311 based on Foata normal form. 111/4133 useless extension candidates. Maximal degree in co-relation 10778. Up to 635 conditions per place. [2022-07-13 22:07:55,448 INFO L132 encePairwiseOnDemand]: 158/176 looper letters, 121 selfloop transitions, 21 changer transitions 31/254 dead transitions. [2022-07-13 22:07:55,448 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 254 transitions, 1260 flow [2022-07-13 22:07:55,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-13 22:07:55,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-07-13 22:07:55,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1845 transitions. [2022-07-13 22:07:55,454 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5241477272727273 [2022-07-13 22:07:55,454 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1845 transitions. [2022-07-13 22:07:55,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1845 transitions. [2022-07-13 22:07:55,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 22:07:55,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1845 transitions. [2022-07-13 22:07:55,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 92.25) internal successors, (1845), 20 states have internal predecessors, (1845), 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) [2022-07-13 22:07:55,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 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) [2022-07-13 22:07:55,468 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 176.0) internal successors, (3696), 21 states have internal predecessors, (3696), 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) [2022-07-13 22:07:55,468 INFO L186 Difference]: Start difference. First operand has 190 places, 165 transitions, 489 flow. Second operand 20 states and 1845 transitions. [2022-07-13 22:07:55,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 254 transitions, 1260 flow [2022-07-13 22:07:55,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 254 transitions, 1200 flow, removed 30 selfloop flow, removed 7 redundant places. [2022-07-13 22:07:55,493 INFO L242 Difference]: Finished difference. Result has 201 places, 173 transitions, 597 flow [2022-07-13 22:07:55,494 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=597, PETRI_PLACES=201, PETRI_TRANSITIONS=173} [2022-07-13 22:07:55,494 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 41 predicate places. [2022-07-13 22:07:55,495 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 173 transitions, 597 flow [2022-07-13 22:07:55,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 89.97058823529412) internal successors, (3059), 34 states have internal predecessors, (3059), 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) [2022-07-13 22:07:55,496 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 22:07:55,497 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:07:55,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 22:07:55,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:07:55,723 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-13 22:07:55,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:07:55,723 INFO L85 PathProgramCache]: Analyzing trace with hash 2123503417, now seen corresponding path program 3 times [2022-07-13 22:07:55,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:07:55,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123919196] [2022-07-13 22:07:55,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:07:55,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:07:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:07:55,876 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 22:07:55,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:07:55,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123919196] [2022-07-13 22:07:55,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123919196] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:07:55,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973672403] [2022-07-13 22:07:55,877 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 22:07:55,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:07:55,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:07:55,880 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:07:55,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 22:07:55,992 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-13 22:07:55,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:07:55,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 43 conjunts are in the unsatisfiable core [2022-07-13 22:07:55,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:07:56,302 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-13 22:07:56,547 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-13 22:07:56,605 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-13 22:07:56,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:07:56,762 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-07-13 22:07:56,875 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-07-13 22:07:56,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 22:07:56,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:07:57,380 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_201 (Array Int Int))) (<= (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) c_~A~0.base) c_~A~0.offset) 1))) (forall ((v_ArrVal_201 (Array Int Int))) (<= (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) c_~A~0.base) c_~A~0.offset)))) is different from false [2022-07-13 22:07:57,396 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_201 (Array Int Int)) (v_ArrVal_200 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_200))) (<= (select (select .cse0 c_~A~0.base) c_~A~0.offset) (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) c_~A~0.base) c_~A~0.offset) 1)))) (forall ((v_ArrVal_201 (Array Int Int)) (v_ArrVal_200 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_200))) (<= (select (select .cse1 c_~A~0.base) c_~A~0.offset) (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) c_~A~0.base) c_~A~0.offset))))) is different from false [2022-07-13 22:07:57,441 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_199 (Array Int Int)) (v_ArrVal_201 (Array Int Int)) (v_ArrVal_200 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_199) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_200))) (<= (select (select .cse0 c_~A~0.base) c_~A~0.offset) (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) c_~A~0.base) c_~A~0.offset) 1)))) (forall ((v_ArrVal_199 (Array Int Int)) (v_ArrVal_201 (Array Int Int)) (v_ArrVal_200 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_199) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_200))) (<= (select (select .cse1 c_~A~0.base) c_~A~0.offset) (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) c_~A~0.base) c_~A~0.offset))))) is different from false [2022-07-13 22:07:57,538 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_199 (Array Int Int)) (v_ArrVal_201 (Array Int Int)) (v_ArrVal_200 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_199) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_200))) (<= (select (select .cse0 |c_ULTIMATE.start_main_#t~ret17#1.base|) |c_ULTIMATE.start_main_#t~ret17#1.offset|) (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) |c_ULTIMATE.start_main_#t~ret17#1.base|) |c_ULTIMATE.start_main_#t~ret17#1.offset|) 1)))) (forall ((v_ArrVal_199 (Array Int Int)) (v_ArrVal_201 (Array Int Int)) (v_ArrVal_200 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_199) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_200))) (<= (select (select .cse1 |c_ULTIMATE.start_main_#t~ret17#1.base|) |c_ULTIMATE.start_main_#t~ret17#1.offset|) (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) |c_ULTIMATE.start_main_#t~ret17#1.base|) |c_ULTIMATE.start_main_#t~ret17#1.offset|))))) is different from false [2022-07-13 22:07:57,552 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_199 (Array Int Int)) (v_ArrVal_201 (Array Int Int)) (v_ArrVal_200 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_199) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_200))) (<= (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) 1)))) (forall ((v_ArrVal_199 (Array Int Int)) (v_ArrVal_201 (Array Int Int)) (v_ArrVal_200 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_199) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_200))) (<= (select (select .cse1 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|))))) is different from false [2022-07-13 22:07:57,562 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_199 (Array Int Int)) (v_ArrVal_201 (Array Int Int)) (v_ArrVal_200 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_199) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_200))) (<= (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)))) (forall ((v_ArrVal_199 (Array Int Int)) (v_ArrVal_201 (Array Int Int)) (v_ArrVal_200 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_199) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_200))) (<= (select (select .cse1 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) (+ (select (select (store .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_201) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) 1))))) is different from false [2022-07-13 22:07:57,597 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 22:07:57,598 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 41 [2022-07-13 22:07:57,604 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2226 treesize of output 2066 [2022-07-13 22:07:57,708 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1790 treesize of output 1718 [2022-07-13 22:07:57,722 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1718 treesize of output 1590 [2022-07-13 22:07:57,735 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1590 treesize of output 1478