./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/bin/uautomizer-DrprNOufMa --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 0d984378a3d93078f60e6a73f83b588890817628b7e21c558fe1824f195f48ce --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:42:54,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:42:54,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:42:54,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:42:54,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:42:54,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:42:54,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:42:54,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:42:54,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:42:54,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:42:54,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:42:54,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:42:54,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:42:54,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:42:54,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:42:54,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:42:54,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:42:54,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:42:54,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:42:54,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:42:54,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:42:54,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:42:54,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:42:54,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:42:54,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:42:54,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:42:54,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:42:54,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:42:54,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:42:54,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:42:54,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:42:54,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:42:54,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:42:54,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:42:54,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:42:54,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:42:54,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:42:54,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:42:54,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:42:54,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:42:54,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:42:54,769 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 17:42:54,786 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:42:54,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:42:54,786 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:42:54,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:42:54,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:42:54,787 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:42:54,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:42:54,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:42:54,788 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:42:54,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:42:54,788 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:42:54,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:42:54,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:42:54,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:42:54,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:42:54,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:42:54,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:42:54,789 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:42:54,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:42:54,789 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:42:54,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:42:54,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:42:54,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:42:54,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:42:54,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:42:54,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:42:54,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:42:54,790 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:42:54,790 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:42:54,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:42:54,791 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:42:54,791 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:42:54,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:42:54,791 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:42:54,791 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d984378a3d93078f60e6a73f83b588890817628b7e21c558fe1824f195f48ce [2021-12-06 17:42:54,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:42:54,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:42:54,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:42:54,987 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:42:54,988 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:42:54,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i [2021-12-06 17:42:55,038 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/bin/uautomizer-DrprNOufMa/data/260ba6cd6/3763797364084cc2940d10117a12c554/FLAGe951214b1 [2021-12-06 17:42:55,445 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:42:55,445 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i [2021-12-06 17:42:55,463 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/bin/uautomizer-DrprNOufMa/data/260ba6cd6/3763797364084cc2940d10117a12c554/FLAGe951214b1 [2021-12-06 17:42:55,479 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/bin/uautomizer-DrprNOufMa/data/260ba6cd6/3763797364084cc2940d10117a12c554 [2021-12-06 17:42:55,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:42:55,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:42:55,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:42:55,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:42:55,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:42:55,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:42:55" (1/1) ... [2021-12-06 17:42:55,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a4ab341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:55, skipping insertion in model container [2021-12-06 17:42:55,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:42:55" (1/1) ... [2021-12-06 17:42:55,491 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:42:55,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:42:55,659 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i[999,1012] [2021-12-06 17:42:55,800 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:42:55,808 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:42:55,817 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i[999,1012] [2021-12-06 17:42:55,854 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:42:55,879 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:42:55,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:55 WrapperNode [2021-12-06 17:42:55,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:42:55,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:42:55,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:42:55,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:42:55,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:55" (1/1) ... [2021-12-06 17:42:55,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:55" (1/1) ... [2021-12-06 17:42:55,926 INFO L137 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 169 [2021-12-06 17:42:55,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:42:55,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:42:55,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:42:55,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:42:55,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:55" (1/1) ... [2021-12-06 17:42:55,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:55" (1/1) ... [2021-12-06 17:42:55,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:55" (1/1) ... [2021-12-06 17:42:55,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:55" (1/1) ... [2021-12-06 17:42:55,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:55" (1/1) ... [2021-12-06 17:42:55,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:55" (1/1) ... [2021-12-06 17:42:55,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:55" (1/1) ... [2021-12-06 17:42:55,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:42:55,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:42:55,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:42:55,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:42:55,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:55" (1/1) ... [2021-12-06 17:42:55,966 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:42:55,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:42:55,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:42:55,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:42:56,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 17:42:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-06 17:42:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:42:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 17:42:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 17:42:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-12-06 17:42:56,034 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-12-06 17:42:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-12-06 17:42:56,034 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-12-06 17:42:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:42:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-06 17:42:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:42:56,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:42:56,037 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-06 17:42:56,127 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:42:56,128 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:42:56,433 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:42:56,604 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:42:56,604 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 17:42:56,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:42:56 BoogieIcfgContainer [2021-12-06 17:42:56,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:42:56,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:42:56,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:42:56,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:42:56,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:42:55" (1/3) ... [2021-12-06 17:42:56,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4cd519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:42:56, skipping insertion in model container [2021-12-06 17:42:56,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:55" (2/3) ... [2021-12-06 17:42:56,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4cd519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:42:56, skipping insertion in model container [2021-12-06 17:42:56,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:42:56" (3/3) ... [2021-12-06 17:42:56,612 INFO L111 eAbstractionObserver]: Analyzing ICFG mix034_pso.opt_tso.opt.i [2021-12-06 17:42:56,616 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 17:42:56,616 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:42:56,616 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-06 17:42:56,616 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 17:42:56,639 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,639 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,640 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,640 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,640 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,640 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,640 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,641 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,641 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,641 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,641 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,642 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,642 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,642 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,642 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,642 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,642 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,642 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,643 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,643 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,643 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,643 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,643 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,643 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,644 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,644 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,644 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,644 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,644 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,644 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,645 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,645 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,645 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,645 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,645 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,645 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,646 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,646 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,646 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,646 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,646 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,646 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,647 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,647 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,647 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,647 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,648 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,649 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,649 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,649 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,649 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,649 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,649 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,650 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,650 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,650 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,650 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,650 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,650 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,650 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,651 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,651 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,651 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,651 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,651 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,651 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,652 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,652 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,652 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,652 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,652 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,652 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,653 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,653 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,653 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,653 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,653 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,653 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,653 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,654 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,654 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,654 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,654 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,654 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,656 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,656 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,656 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,657 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,657 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,657 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,657 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,658 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,658 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,658 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,658 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,658 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,659 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,659 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,659 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,659 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,659 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,659 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,660 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,660 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,660 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,660 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,661 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,661 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,661 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,661 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,661 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,662 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,662 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,662 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,662 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,662 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,662 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,663 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,663 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,663 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,663 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,664 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,667 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,667 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,667 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,667 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,667 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,668 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,668 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,668 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,668 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,668 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,669 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,669 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,669 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,669 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,669 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,669 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,670 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,670 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,670 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,670 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,670 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,671 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,671 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,671 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,671 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,671 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,671 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,672 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,673 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,673 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,673 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,673 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,673 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,673 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,674 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,674 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,674 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,674 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,674 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 17:42:56,675 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-06 17:42:56,713 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:42:56,719 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 17:42:56,719 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-12-06 17:42:56,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 98 transitions, 206 flow [2021-12-06 17:42:56,762 INFO L129 PetriNetUnfolder]: 2/96 cut-off events. [2021-12-06 17:42:56,762 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 17:42:56,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 96 events. 2/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-12-06 17:42:56,765 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 98 transitions, 206 flow [2021-12-06 17:42:56,770 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 96 transitions, 198 flow [2021-12-06 17:42:56,784 INFO L129 PetriNetUnfolder]: 0/59 cut-off events. [2021-12-06 17:42:56,784 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 17:42:56,784 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 17:42:56,785 INFO L254 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] [2021-12-06 17:42:56,785 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-12-06 17:42:56,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:56,790 INFO L85 PathProgramCache]: Analyzing trace with hash 119522127, now seen corresponding path program 1 times [2021-12-06 17:42:56,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:56,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289274284] [2021-12-06 17:42:56,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:56,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:57,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:42:57,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:57,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289274284] [2021-12-06 17:42:57,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289274284] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:42:57,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:42:57,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 17:42:57,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070203663] [2021-12-06 17:42:57,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:42:57,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:42:57,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:57,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:42:57,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:42:57,055 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 98 [2021-12-06 17:42:57,058 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 96 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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) [2021-12-06 17:42:57,059 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 17:42:57,059 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 98 [2021-12-06 17:42:57,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 17:42:57,133 INFO L129 PetriNetUnfolder]: 10/162 cut-off events. [2021-12-06 17:42:57,133 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-12-06 17:42:57,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 162 events. 10/162 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 342 event pairs, 4 based on Foata normal form. 6/159 useless extension candidates. Maximal degree in co-relation 147. Up to 17 conditions per place. [2021-12-06 17:42:57,136 INFO L132 encePairwiseOnDemand]: 93/98 looper letters, 7 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2021-12-06 17:42:57,136 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 94 transitions, 212 flow [2021-12-06 17:42:57,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:42:57,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 17:42:57,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2021-12-06 17:42:57,147 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.935374149659864 [2021-12-06 17:42:57,148 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 275 transitions. [2021-12-06 17:42:57,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 275 transitions. [2021-12-06 17:42:57,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 17:42:57,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 275 transitions. [2021-12-06 17:42:57,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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) [2021-12-06 17:42:57,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2021-12-06 17:42:57,162 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2021-12-06 17:42:57,164 INFO L186 Difference]: Start difference. First operand has 101 places, 96 transitions, 198 flow. Second operand 3 states and 275 transitions. [2021-12-06 17:42:57,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 94 transitions, 212 flow [2021-12-06 17:42:57,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 94 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 17:42:57,171 INFO L242 Difference]: Finished difference. Result has 99 places, 92 transitions, 192 flow [2021-12-06 17:42:57,173 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=192, PETRI_PLACES=99, PETRI_TRANSITIONS=92} [2021-12-06 17:42:57,177 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, -2 predicate places. [2021-12-06 17:42:57,177 INFO L470 AbstractCegarLoop]: Abstraction has has 99 places, 92 transitions, 192 flow [2021-12-06 17:42:57,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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) [2021-12-06 17:42:57,177 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 17:42:57,177 INFO L254 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] [2021-12-06 17:42:57,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 17:42:57,178 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-12-06 17:42:57,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:57,178 INFO L85 PathProgramCache]: Analyzing trace with hash -252737712, now seen corresponding path program 1 times [2021-12-06 17:42:57,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:57,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597725380] [2021-12-06 17:42:57,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:57,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:57,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:42:57,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:57,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597725380] [2021-12-06 17:42:57,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597725380] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:42:57,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:42:57,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 17:42:57,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749121704] [2021-12-06 17:42:57,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:42:57,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 17:42:57,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:57,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:42:57,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:42:57,347 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-12-06 17:42:57,348 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 92 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 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) [2021-12-06 17:42:57,348 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 17:42:57,348 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-12-06 17:42:57,348 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 17:42:57,549 INFO L129 PetriNetUnfolder]: 84/381 cut-off events. [2021-12-06 17:42:57,549 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2021-12-06 17:42:57,551 INFO L84 FinitePrefix]: Finished finitePrefix Result has 573 conditions, 381 events. 84/381 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1831 event pairs, 18 based on Foata normal form. 0/369 useless extension candidates. Maximal degree in co-relation 522. Up to 65 conditions per place. [2021-12-06 17:42:57,552 INFO L132 encePairwiseOnDemand]: 92/98 looper letters, 14 selfloop transitions, 2 changer transitions 34/118 dead transitions. [2021-12-06 17:42:57,552 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 118 transitions, 332 flow [2021-12-06 17:42:57,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:42:57,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-06 17:42:57,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 754 transitions. [2021-12-06 17:42:57,557 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.854875283446712 [2021-12-06 17:42:57,557 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 754 transitions. [2021-12-06 17:42:57,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 754 transitions. [2021-12-06 17:42:57,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 17:42:57,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 754 transitions. [2021-12-06 17:42:57,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 83.77777777777777) internal successors, (754), 9 states have internal predecessors, (754), 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) [2021-12-06 17:42:57,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 98.0) internal successors, (980), 10 states have internal predecessors, (980), 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) [2021-12-06 17:42:57,565 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 98.0) internal successors, (980), 10 states have internal predecessors, (980), 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) [2021-12-06 17:42:57,565 INFO L186 Difference]: Start difference. First operand has 99 places, 92 transitions, 192 flow. Second operand 9 states and 754 transitions. [2021-12-06 17:42:57,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 118 transitions, 332 flow [2021-12-06 17:42:57,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 118 transitions, 322 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 17:42:57,568 INFO L242 Difference]: Finished difference. Result has 112 places, 82 transitions, 188 flow [2021-12-06 17:42:57,568 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=188, PETRI_PLACES=112, PETRI_TRANSITIONS=82} [2021-12-06 17:42:57,569 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 11 predicate places. [2021-12-06 17:42:57,569 INFO L470 AbstractCegarLoop]: Abstraction has has 112 places, 82 transitions, 188 flow [2021-12-06 17:42:57,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 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) [2021-12-06 17:42:57,569 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 17:42:57,569 INFO L254 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] [2021-12-06 17:42:57,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 17:42:57,570 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-12-06 17:42:57,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:57,570 INFO L85 PathProgramCache]: Analyzing trace with hash 110690063, now seen corresponding path program 1 times [2021-12-06 17:42:57,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:57,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278925120] [2021-12-06 17:42:57,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:57,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:57,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:42:57,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:57,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278925120] [2021-12-06 17:42:57,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278925120] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:42:57,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:42:57,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 17:42:57,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081998764] [2021-12-06 17:42:57,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:42:57,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 17:42:57,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:57,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:42:57,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:42:57,678 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 98 [2021-12-06 17:42:57,679 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 82 transitions, 188 flow. Second operand has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 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) [2021-12-06 17:42:57,679 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 17:42:57,679 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 98 [2021-12-06 17:42:57,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 17:42:57,897 INFO L129 PetriNetUnfolder]: 122/390 cut-off events. [2021-12-06 17:42:57,897 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-12-06 17:42:57,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 691 conditions, 390 events. 122/390 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1818 event pairs, 10 based on Foata normal form. 0/381 useless extension candidates. Maximal degree in co-relation 661. Up to 67 conditions per place. [2021-12-06 17:42:57,901 INFO L132 encePairwiseOnDemand]: 89/98 looper letters, 21 selfloop transitions, 5 changer transitions 35/127 dead transitions. [2021-12-06 17:42:57,901 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 127 transitions, 402 flow [2021-12-06 17:42:57,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 17:42:57,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-06 17:42:57,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 843 transitions. [2021-12-06 17:42:57,905 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.860204081632653 [2021-12-06 17:42:57,905 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 843 transitions. [2021-12-06 17:42:57,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 843 transitions. [2021-12-06 17:42:57,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 17:42:57,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 843 transitions. [2021-12-06 17:42:57,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 84.3) internal successors, (843), 10 states have internal predecessors, (843), 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) [2021-12-06 17:42:57,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 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) [2021-12-06 17:42:57,914 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 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) [2021-12-06 17:42:57,914 INFO L186 Difference]: Start difference. First operand has 112 places, 82 transitions, 188 flow. Second operand 10 states and 843 transitions. [2021-12-06 17:42:57,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 127 transitions, 402 flow [2021-12-06 17:42:57,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 127 transitions, 386 flow, removed 6 selfloop flow, removed 8 redundant places. [2021-12-06 17:42:57,919 INFO L242 Difference]: Finished difference. Result has 103 places, 83 transitions, 214 flow [2021-12-06 17:42:57,920 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=214, PETRI_PLACES=103, PETRI_TRANSITIONS=83} [2021-12-06 17:42:57,921 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 2 predicate places. [2021-12-06 17:42:57,921 INFO L470 AbstractCegarLoop]: Abstraction has has 103 places, 83 transitions, 214 flow [2021-12-06 17:42:57,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 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) [2021-12-06 17:42:57,921 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 17:42:57,922 INFO L254 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] [2021-12-06 17:42:57,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 17:42:57,922 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-12-06 17:42:57,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:57,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1638692264, now seen corresponding path program 1 times [2021-12-06 17:42:57,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:57,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127234569] [2021-12-06 17:42:57,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:57,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:58,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:42:58,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:58,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127234569] [2021-12-06 17:42:58,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127234569] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:42:58,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:42:58,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:42:58,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615536460] [2021-12-06 17:42:58,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:42:58,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:42:58,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:58,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:42:58,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:42:58,046 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 98 [2021-12-06 17:42:58,047 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 83 transitions, 214 flow. Second operand has 7 states, 7 states have (on average 79.85714285714286) internal successors, (559), 7 states have internal predecessors, (559), 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) [2021-12-06 17:42:58,047 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 17:42:58,047 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 98 [2021-12-06 17:42:58,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 17:42:58,188 INFO L129 PetriNetUnfolder]: 27/163 cut-off events. [2021-12-06 17:42:58,189 INFO L130 PetriNetUnfolder]: For 88/88 co-relation queries the response was YES. [2021-12-06 17:42:58,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 163 events. 27/163 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 405 event pairs, 3 based on Foata normal form. 6/167 useless extension candidates. Maximal degree in co-relation 318. Up to 24 conditions per place. [2021-12-06 17:42:58,190 INFO L132 encePairwiseOnDemand]: 90/98 looper letters, 14 selfloop transitions, 7 changer transitions 17/104 dead transitions. [2021-12-06 17:42:58,190 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 104 transitions, 377 flow [2021-12-06 17:42:58,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 17:42:58,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-06 17:42:58,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 820 transitions. [2021-12-06 17:42:58,193 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8367346938775511 [2021-12-06 17:42:58,193 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 820 transitions. [2021-12-06 17:42:58,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 820 transitions. [2021-12-06 17:42:58,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 17:42:58,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 820 transitions. [2021-12-06 17:42:58,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 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) [2021-12-06 17:42:58,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 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) [2021-12-06 17:42:58,198 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 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) [2021-12-06 17:42:58,198 INFO L186 Difference]: Start difference. First operand has 103 places, 83 transitions, 214 flow. Second operand 10 states and 820 transitions. [2021-12-06 17:42:58,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 104 transitions, 377 flow [2021-12-06 17:42:58,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 104 transitions, 338 flow, removed 14 selfloop flow, removed 6 redundant places. [2021-12-06 17:42:58,201 INFO L242 Difference]: Finished difference. Result has 106 places, 83 transitions, 226 flow [2021-12-06 17:42:58,201 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=226, PETRI_PLACES=106, PETRI_TRANSITIONS=83} [2021-12-06 17:42:58,202 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 5 predicate places. [2021-12-06 17:42:58,202 INFO L470 AbstractCegarLoop]: Abstraction has has 106 places, 83 transitions, 226 flow [2021-12-06 17:42:58,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 79.85714285714286) internal successors, (559), 7 states have internal predecessors, (559), 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) [2021-12-06 17:42:58,202 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 17:42:58,202 INFO L254 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] [2021-12-06 17:42:58,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 17:42:58,203 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-12-06 17:42:58,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:58,203 INFO L85 PathProgramCache]: Analyzing trace with hash -980083116, now seen corresponding path program 1 times [2021-12-06 17:42:58,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:58,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739219720] [2021-12-06 17:42:58,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:58,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:58,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:58,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:42:58,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:58,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739219720] [2021-12-06 17:42:58,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739219720] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:42:58,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:42:58,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 17:42:58,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018730927] [2021-12-06 17:42:58,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:42:58,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 17:42:58,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:58,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 17:42:58,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:42:58,364 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 98 [2021-12-06 17:42:58,365 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 83 transitions, 226 flow. Second operand has 8 states, 8 states have (on average 78.125) internal successors, (625), 8 states have internal predecessors, (625), 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) [2021-12-06 17:42:58,365 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 17:42:58,365 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 98 [2021-12-06 17:42:58,365 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 17:42:58,494 INFO L129 PetriNetUnfolder]: 5/139 cut-off events. [2021-12-06 17:42:58,494 INFO L130 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2021-12-06 17:42:58,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 139 events. 5/139 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 247 event pairs, 1 based on Foata normal form. 1/139 useless extension candidates. Maximal degree in co-relation 214. Up to 21 conditions per place. [2021-12-06 17:42:58,495 INFO L132 encePairwiseOnDemand]: 90/98 looper letters, 16 selfloop transitions, 4 changer transitions 6/92 dead transitions. [2021-12-06 17:42:58,495 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 92 transitions, 296 flow [2021-12-06 17:42:58,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:42:58,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-06 17:42:58,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 711 transitions. [2021-12-06 17:42:58,498 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8061224489795918 [2021-12-06 17:42:58,498 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 711 transitions. [2021-12-06 17:42:58,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 711 transitions. [2021-12-06 17:42:58,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 17:42:58,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 711 transitions. [2021-12-06 17:42:58,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 79.0) internal successors, (711), 9 states have internal predecessors, (711), 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) [2021-12-06 17:42:58,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 98.0) internal successors, (980), 10 states have internal predecessors, (980), 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) [2021-12-06 17:42:58,504 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 98.0) internal successors, (980), 10 states have internal predecessors, (980), 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) [2021-12-06 17:42:58,504 INFO L186 Difference]: Start difference. First operand has 106 places, 83 transitions, 226 flow. Second operand 9 states and 711 transitions. [2021-12-06 17:42:58,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 92 transitions, 296 flow [2021-12-06 17:42:58,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 92 transitions, 250 flow, removed 13 selfloop flow, removed 13 redundant places. [2021-12-06 17:42:58,508 INFO L242 Difference]: Finished difference. Result has 104 places, 86 transitions, 217 flow [2021-12-06 17:42:58,508 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=217, PETRI_PLACES=104, PETRI_TRANSITIONS=86} [2021-12-06 17:42:58,509 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 3 predicate places. [2021-12-06 17:42:58,510 INFO L470 AbstractCegarLoop]: Abstraction has has 104 places, 86 transitions, 217 flow [2021-12-06 17:42:58,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 78.125) internal successors, (625), 8 states have internal predecessors, (625), 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) [2021-12-06 17:42:58,510 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 17:42:58,510 INFO L254 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] [2021-12-06 17:42:58,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 17:42:58,511 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-12-06 17:42:58,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:58,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1012178974, now seen corresponding path program 2 times [2021-12-06 17:42:58,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:58,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930076708] [2021-12-06 17:42:58,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:58,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:42:58,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:42:58,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:42:58,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930076708] [2021-12-06 17:42:58,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930076708] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:42:58,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:42:58,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:42:58,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240923258] [2021-12-06 17:42:58,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:42:58,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:42:58,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:42:58,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:42:58,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:42:58,649 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 98 [2021-12-06 17:42:58,650 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 86 transitions, 217 flow. Second operand has 7 states, 7 states have (on average 76.71428571428571) internal successors, (537), 7 states have internal predecessors, (537), 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) [2021-12-06 17:42:58,650 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 17:42:58,650 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 98 [2021-12-06 17:42:58,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 17:42:58,783 INFO L129 PetriNetUnfolder]: 11/164 cut-off events. [2021-12-06 17:42:58,783 INFO L130 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2021-12-06 17:42:58,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 164 events. 11/164 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 380 event pairs, 0 based on Foata normal form. 1/164 useless extension candidates. Maximal degree in co-relation 273. Up to 27 conditions per place. [2021-12-06 17:42:58,784 INFO L132 encePairwiseOnDemand]: 89/98 looper letters, 19 selfloop transitions, 5 changer transitions 11/99 dead transitions. [2021-12-06 17:42:58,784 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 99 transitions, 341 flow [2021-12-06 17:42:58,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 17:42:58,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-06 17:42:58,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 624 transitions. [2021-12-06 17:42:58,787 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2021-12-06 17:42:58,787 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 624 transitions. [2021-12-06 17:42:58,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 624 transitions. [2021-12-06 17:42:58,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 17:42:58,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 624 transitions. [2021-12-06 17:42:58,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 78.0) internal successors, (624), 8 states have internal predecessors, (624), 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) [2021-12-06 17:42:58,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 98.0) internal successors, (882), 9 states have internal predecessors, (882), 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) [2021-12-06 17:42:58,792 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 98.0) internal successors, (882), 9 states have internal predecessors, (882), 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) [2021-12-06 17:42:58,792 INFO L186 Difference]: Start difference. First operand has 104 places, 86 transitions, 217 flow. Second operand 8 states and 624 transitions. [2021-12-06 17:42:58,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 99 transitions, 341 flow [2021-12-06 17:42:58,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 99 transitions, 318 flow, removed 9 selfloop flow, removed 6 redundant places. [2021-12-06 17:42:58,796 INFO L242 Difference]: Finished difference. Result has 105 places, 85 transitions, 221 flow [2021-12-06 17:42:58,796 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=221, PETRI_PLACES=105, PETRI_TRANSITIONS=85} [2021-12-06 17:42:58,797 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 4 predicate places. [2021-12-06 17:42:58,797 INFO L470 AbstractCegarLoop]: Abstraction has has 105 places, 85 transitions, 221 flow [2021-12-06 17:42:58,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.71428571428571) internal successors, (537), 7 states have internal predecessors, (537), 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) [2021-12-06 17:42:58,797 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 17:42:58,798 INFO L254 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] [2021-12-06 17:42:58,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 17:42:58,798 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-12-06 17:42:58,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:58,798 INFO L85 PathProgramCache]: Analyzing trace with hash -370763100, now seen corresponding path program 3 times [2021-12-06 17:42:58,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:42:58,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185828578] [2021-12-06 17:42:58,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:42:58,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:42:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:42:58,838 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:42:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:42:58,920 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:42:58,920 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 17:42:58,921 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2021-12-06 17:42:58,923 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2021-12-06 17:42:58,923 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 5 remaining) [2021-12-06 17:42:58,924 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 5 remaining) [2021-12-06 17:42:58,924 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2021-12-06 17:42:58,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 17:42:58,928 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2021-12-06 17:42:58,934 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-06 17:42:58,934 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 17:42:59,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:42:59 BasicIcfg [2021-12-06 17:42:59,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 17:42:59,046 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 17:42:59,046 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 17:42:59,047 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 17:42:59,047 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:42:56" (3/4) ... [2021-12-06 17:42:59,048 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-06 17:42:59,122 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 17:42:59,122 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 17:42:59,123 INFO L158 Benchmark]: Toolchain (without parser) took 3641.33ms. Allocated memory was 88.1MB in the beginning and 142.6MB in the end (delta: 54.5MB). Free memory was 67.1MB in the beginning and 66.7MB in the end (delta: 465.3kB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. [2021-12-06 17:42:59,123 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 88.1MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:42:59,123 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.96ms. Allocated memory is still 88.1MB. Free memory was 67.1MB in the beginning and 51.5MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 17:42:59,124 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.01ms. Allocated memory is still 88.1MB. Free memory was 51.5MB in the beginning and 49.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:42:59,124 INFO L158 Benchmark]: Boogie Preprocessor took 28.49ms. Allocated memory is still 88.1MB. Free memory was 49.0MB in the beginning and 47.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:42:59,124 INFO L158 Benchmark]: RCFGBuilder took 649.81ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 47.0MB in the beginning and 73.4MB in the end (delta: -26.5MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2021-12-06 17:42:59,125 INFO L158 Benchmark]: TraceAbstraction took 2438.62ms. Allocated memory was 111.1MB in the beginning and 142.6MB in the end (delta: 31.5MB). Free memory was 72.8MB in the beginning and 89.7MB in the end (delta: -16.9MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. [2021-12-06 17:42:59,125 INFO L158 Benchmark]: Witness Printer took 75.84ms. Allocated memory is still 142.6MB. Free memory was 89.7MB in the beginning and 66.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-06 17:42:59,126 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 88.1MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.96ms. Allocated memory is still 88.1MB. Free memory was 67.1MB in the beginning and 51.5MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.01ms. Allocated memory is still 88.1MB. Free memory was 51.5MB in the beginning and 49.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.49ms. Allocated memory is still 88.1MB. Free memory was 49.0MB in the beginning and 47.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 649.81ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 47.0MB in the beginning and 73.4MB in the end (delta: -26.5MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2438.62ms. Allocated memory was 111.1MB in the beginning and 142.6MB in the end (delta: 31.5MB). Free memory was 72.8MB in the beginning and 89.7MB in the end (delta: -16.9MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. * Witness Printer took 75.84ms. Allocated memory is still 142.6MB. Free memory was 89.7MB in the beginning and 66.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L711] 0 int __unbuffered_p0_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0] [L713] 0 int __unbuffered_p1_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0] [L715] 0 int __unbuffered_p1_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0] [L716] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0] [L717] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L719] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L720] 0 _Bool x$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0] [L721] 0 int x$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0] [L722] 0 _Bool x$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0] [L723] 0 _Bool x$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0] [L724] 0 _Bool x$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0] [L725] 0 _Bool x$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0] [L726] 0 _Bool x$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0] [L727] 0 _Bool x$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0] [L728] 0 _Bool x$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0] [L729] 0 int *x$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}] [L730] 0 int x$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0] [L731] 0 _Bool x$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0] [L732] 0 int x$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0] [L733] 0 _Bool x$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0] [L735] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L737] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L738] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L739] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L813] 0 pthread_t t903; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t903={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L814] FCALL, FORK 0 pthread_create(&t903, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t903, ((void *)0), P0, ((void *)0))=-1, t903={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L815] 0 pthread_t t904; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t903={5:0}, t904={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L816] FCALL, FORK 0 pthread_create(&t904, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t904, ((void *)0), P1, ((void *)0))=0, t903={5:0}, t904={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L771] 2 x$w_buff1 = x$w_buff0 [L772] 2 x$w_buff0 = 1 [L773] 2 x$w_buff1_used = x$w_buff0_used [L774] 2 x$w_buff0_used = (_Bool)1 [L775] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L775] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L776] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L777] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L778] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L779] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L782] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L785] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L788] 2 __unbuffered_p1_EBX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L743] 1 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L746] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L747] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L748] 1 x$flush_delayed = weak$$choice2 [L749] 1 x$mem_tmp = x [L750] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L750] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L751] EXPR 1 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L751] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0) [L751] EXPR 1 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L751] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L752] EXPR 1 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L752] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1) [L752] EXPR 1 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L752] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L753] EXPR 1 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L753] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used) [L753] EXPR 1 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L753] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L754] EXPR 1 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L754] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L754] EXPR 1 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L754] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L755] EXPR 1 weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L755] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1) [L755] EXPR 1 weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L755] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L756] EXPR 1 weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L756] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L756] EXPR 1 weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L756] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L757] 1 __unbuffered_p0_EAX = x [L758] EXPR 1 x$flush_delayed ? x$mem_tmp : x [L758] 1 x = x$flush_delayed ? x$mem_tmp : x [L759] 1 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L791] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L791] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L792] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L792] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L793] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L793] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L794] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L794] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L795] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L795] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L764] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L798] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L818] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t903={5:0}, t904={3:0}, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L820] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) VAL [\old(cond)=1, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, cond=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L820] RET 0 assume_abort_if_not(main$tmp_guard0) [L822] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L822] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L822] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L822] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L823] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L823] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L824] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L824] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L825] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L825] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L826] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L826] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L829] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t903={5:0}, t904={3:0}, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L831] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression VAL [\old(expression)=0, \old(expression)=1, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L19] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 814]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 816]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 117 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 156 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 156 mSDsluCounter, 192 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 319 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 425 IncrementalHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 40 mSDtfsCounter, 425 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=4, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 408 ConstructedInterpolants, 0 QuantifiedInterpolants, 1217 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-12-06 17:42:59,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bbe2-cbe2-4924-b35e-ddafd64dcffb/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE