/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_35-traces-ex-2_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 05:46:33,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 05:46:33,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 05:46:33,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 05:46:33,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 05:46:33,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 05:46:33,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 05:46:33,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 05:46:33,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 05:46:33,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 05:46:33,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 05:46:33,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 05:46:33,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 05:46:33,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 05:46:33,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 05:46:33,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 05:46:33,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 05:46:33,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 05:46:33,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 05:46:33,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 05:46:33,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 05:46:33,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 05:46:33,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 05:46:33,830 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 05:46:33,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-19 05:46:33,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 05:46:33,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 05:46:33,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 05:46:33,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 05:46:33,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 05:46:33,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 05:46:33,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 05:46:33,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 05:46:33,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 05:46:33,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 05:46:33,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 05:46:33,848 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-Before.epf [2022-01-19 05:46:33,873 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 05:46:33,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 05:46:33,873 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 05:46:33,874 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 05:46:33,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 05:46:33,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 05:46:33,874 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 05:46:33,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 05:46:33,874 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 05:46:33,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 05:46:33,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 05:46:33,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 05:46:33,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 05:46:33,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 05:46:33,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 05:46:33,875 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 05:46:33,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 05:46:33,875 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 05:46:33,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 05:46:33,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 05:46:33,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 05:46:33,875 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 05:46:33,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 05:46:33,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 05:46:33,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 05:46:33,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 05:46:33,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 05:46:33,876 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 05:46:33,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 05:46:33,876 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 05:46:33,876 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 05:46:33,876 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 05:46:33,876 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 05:46:34,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 05:46:34,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 05:46:34,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 05:46:34,060 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 05:46:34,062 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 05:46:34,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_35-traces-ex-2_true.i [2022-01-19 05:46:34,113 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cd095475/86b9b558a07945d09945367d7423b18f/FLAG709b6d1ed [2022-01-19 05:46:34,515 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 05:46:34,515 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_35-traces-ex-2_true.i [2022-01-19 05:46:34,528 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cd095475/86b9b558a07945d09945367d7423b18f/FLAG709b6d1ed [2022-01-19 05:46:34,538 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cd095475/86b9b558a07945d09945367d7423b18f [2022-01-19 05:46:34,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 05:46:34,542 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 05:46:34,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 05:46:34,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 05:46:34,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 05:46:34,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 05:46:34" (1/1) ... [2022-01-19 05:46:34,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5be2d8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:34, skipping insertion in model container [2022-01-19 05:46:34,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 05:46:34" (1/1) ... [2022-01-19 05:46:34,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 05:46:34,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 05:46:34,765 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_35-traces-ex-2_true.i[1088,1101] [2022-01-19 05:46:34,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 05:46:34,857 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 05:46:34,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_35-traces-ex-2_true.i[1088,1101] [2022-01-19 05:46:34,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 05:46:34,910 INFO L208 MainTranslator]: Completed translation [2022-01-19 05:46:34,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:34 WrapperNode [2022-01-19 05:46:34,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 05:46:34,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 05:46:34,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 05:46:34,911 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 05:46:34,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:34" (1/1) ... [2022-01-19 05:46:34,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:34" (1/1) ... [2022-01-19 05:46:34,935 INFO L137 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-01-19 05:46:34,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 05:46:34,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 05:46:34,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 05:46:34,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 05:46:34,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:34" (1/1) ... [2022-01-19 05:46:34,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:34" (1/1) ... [2022-01-19 05:46:34,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:34" (1/1) ... [2022-01-19 05:46:34,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:34" (1/1) ... [2022-01-19 05:46:34,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:34" (1/1) ... [2022-01-19 05:46:34,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:34" (1/1) ... [2022-01-19 05:46:34,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:34" (1/1) ... [2022-01-19 05:46:34,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 05:46:34,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 05:46:34,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 05:46:34,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 05:46:34,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:34" (1/1) ... [2022-01-19 05:46:34,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 05:46:34,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:46:34,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-19 05:46:34,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-19 05:46:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 05:46:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-19 05:46:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 05:46:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 05:46:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-01-19 05:46:35,004 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-01-19 05:46:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 05:46:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 05:46:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 05:46:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 05:46:35,006 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 05:46:35,114 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 05:46:35,115 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 05:46:35,258 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 05:46:35,271 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 05:46:35,271 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 05:46:35,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 05:46:35 BoogieIcfgContainer [2022-01-19 05:46:35,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 05:46:35,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 05:46:35,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 05:46:35,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 05:46:35,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 05:46:34" (1/3) ... [2022-01-19 05:46:35,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a97203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 05:46:35, skipping insertion in model container [2022-01-19 05:46:35,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:34" (2/3) ... [2022-01-19 05:46:35,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a97203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 05:46:35, skipping insertion in model container [2022-01-19 05:46:35,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 05:46:35" (3/3) ... [2022-01-19 05:46:35,279 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_35-traces-ex-2_true.i [2022-01-19 05:46:35,283 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 05:46:35,283 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 05:46:35,283 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 05:46:35,309 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,309 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,310 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,310 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,311 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,311 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,311 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,311 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,312 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,313 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,313 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,314 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,314 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,314 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,315 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,316 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,318 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,318 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,319 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,319 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,319 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,320 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,322 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,322 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,326 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,326 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,326 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,327 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,327 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,327 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,327 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:35,329 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 05:46:35,367 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 05:46:35,372 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=false, 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 [2022-01-19 05:46:35,373 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 05:46:35,382 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 147 flow [2022-01-19 05:46:35,417 INFO L129 PetriNetUnfolder]: 1/70 cut-off events. [2022-01-19 05:46:35,418 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:46:35,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 70 events. 1/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2022-01-19 05:46:35,420 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 71 transitions, 147 flow [2022-01-19 05:46:35,424 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 58 transitions, 119 flow [2022-01-19 05:46:35,443 INFO L129 PetriNetUnfolder]: 0/54 cut-off events. [2022-01-19 05:46:35,444 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:46:35,444 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:46:35,445 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] [2022-01-19 05:46:35,445 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 05:46:35,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:46:35,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1163219958, now seen corresponding path program 1 times [2022-01-19 05:46:35,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:46:35,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555137698] [2022-01-19 05:46:35,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:46:35,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:46:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:46:35,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:46:35,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:46:35,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555137698] [2022-01-19 05:46:35,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555137698] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:46:35,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:46:35,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 05:46:35,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832619902] [2022-01-19 05:46:35,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:46:35,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 05:46:35,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:46:35,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 05:46:35,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 05:46:35,743 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 71 [2022-01-19 05:46:35,746 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:35,747 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:46:35,747 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 71 [2022-01-19 05:46:35,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:46:35,812 INFO L129 PetriNetUnfolder]: 8/101 cut-off events. [2022-01-19 05:46:35,813 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 05:46:35,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 101 events. 8/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 197 event pairs, 0 based on Foata normal form. 3/104 useless extension candidates. Maximal degree in co-relation 96. Up to 10 conditions per place. [2022-01-19 05:46:35,815 INFO L132 encePairwiseOnDemand]: 65/71 looper letters, 8 selfloop transitions, 3 changer transitions 9/70 dead transitions. [2022-01-19 05:46:35,815 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 70 transitions, 183 flow [2022-01-19 05:46:35,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 05:46:35,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 05:46:35,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 442 transitions. [2022-01-19 05:46:35,830 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8893360160965795 [2022-01-19 05:46:35,831 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 442 transitions. [2022-01-19 05:46:35,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 442 transitions. [2022-01-19 05:46:35,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:46:35,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 442 transitions. [2022-01-19 05:46:35,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 63.142857142857146) internal successors, (442), 7 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:35,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:35,847 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:35,848 INFO L186 Difference]: Start difference. First operand has 62 places, 58 transitions, 119 flow. Second operand 7 states and 442 transitions. [2022-01-19 05:46:35,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 70 transitions, 183 flow [2022-01-19 05:46:35,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 70 transitions, 182 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 05:46:35,856 INFO L242 Difference]: Finished difference. Result has 72 places, 58 transitions, 137 flow [2022-01-19 05:46:35,858 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=137, PETRI_PLACES=72, PETRI_TRANSITIONS=58} [2022-01-19 05:46:35,860 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, 10 predicate places. [2022-01-19 05:46:35,861 INFO L470 AbstractCegarLoop]: Abstraction has has 72 places, 58 transitions, 137 flow [2022-01-19 05:46:35,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:35,862 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:46:35,862 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] [2022-01-19 05:46:35,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 05:46:35,868 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 05:46:35,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:46:35,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1776305511, now seen corresponding path program 1 times [2022-01-19 05:46:35,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:46:35,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627161700] [2022-01-19 05:46:35,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:46:35,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:46:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:46:35,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:46:35,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:46:35,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627161700] [2022-01-19 05:46:35,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627161700] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:46:35,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:46:35,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 05:46:35,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139248742] [2022-01-19 05:46:35,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:46:35,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 05:46:35,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:46:35,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 05:46:35,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 05:46:35,974 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 71 [2022-01-19 05:46:35,974 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 58 transitions, 137 flow. Second operand has 7 states, 7 states have (on average 46.42857142857143) internal successors, (325), 7 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:35,974 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:46:35,974 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 71 [2022-01-19 05:46:35,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:46:36,083 INFO L129 PetriNetUnfolder]: 3/87 cut-off events. [2022-01-19 05:46:36,084 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-01-19 05:46:36,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 87 events. 3/87 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 127 event pairs, 0 based on Foata normal form. 12/99 useless extension candidates. Maximal degree in co-relation 128. Up to 12 conditions per place. [2022-01-19 05:46:36,085 INFO L132 encePairwiseOnDemand]: 62/71 looper letters, 13 selfloop transitions, 5 changer transitions 13/64 dead transitions. [2022-01-19 05:46:36,085 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 64 transitions, 205 flow [2022-01-19 05:46:36,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 05:46:36,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 05:46:36,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 341 transitions. [2022-01-19 05:46:36,086 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6861167002012073 [2022-01-19 05:46:36,086 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 341 transitions. [2022-01-19 05:46:36,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 341 transitions. [2022-01-19 05:46:36,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:46:36,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 341 transitions. [2022-01-19 05:46:36,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 48.714285714285715) internal successors, (341), 7 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:36,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:36,089 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:36,089 INFO L186 Difference]: Start difference. First operand has 72 places, 58 transitions, 137 flow. Second operand 7 states and 341 transitions. [2022-01-19 05:46:36,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 64 transitions, 205 flow [2022-01-19 05:46:36,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 64 transitions, 191 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-01-19 05:46:36,091 INFO L242 Difference]: Finished difference. Result has 68 places, 51 transitions, 118 flow [2022-01-19 05:46:36,091 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=118, PETRI_PLACES=68, PETRI_TRANSITIONS=51} [2022-01-19 05:46:36,092 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, 6 predicate places. [2022-01-19 05:46:36,092 INFO L470 AbstractCegarLoop]: Abstraction has has 68 places, 51 transitions, 118 flow [2022-01-19 05:46:36,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.42857142857143) internal successors, (325), 7 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:36,092 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:46:36,093 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] [2022-01-19 05:46:36,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 05:46:36,093 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 05:46:36,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:46:36,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1481176972, now seen corresponding path program 1 times [2022-01-19 05:46:36,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:46:36,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478072405] [2022-01-19 05:46:36,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:46:36,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:46:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:46:36,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 05:46:36,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:46:36,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478072405] [2022-01-19 05:46:36,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478072405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:46:36,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:46:36,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 05:46:36,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17977869] [2022-01-19 05:46:36,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:46:36,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 05:46:36,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:46:36,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 05:46:36,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 05:46:36,278 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 71 [2022-01-19 05:46:36,279 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 51 transitions, 118 flow. Second operand has 10 states, 10 states have (on average 40.4) internal successors, (404), 10 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:36,279 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:46:36,279 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 71 [2022-01-19 05:46:36,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:46:36,366 INFO L129 PetriNetUnfolder]: 0/43 cut-off events. [2022-01-19 05:46:36,367 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-01-19 05:46:36,367 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 43 events. 0/43 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 1/44 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2022-01-19 05:46:36,367 INFO L132 encePairwiseOnDemand]: 65/71 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2022-01-19 05:46:36,368 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 43 transitions, 138 flow [2022-01-19 05:46:36,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 05:46:36,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 05:46:36,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 286 transitions. [2022-01-19 05:46:36,369 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5754527162977867 [2022-01-19 05:46:36,369 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 286 transitions. [2022-01-19 05:46:36,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 286 transitions. [2022-01-19 05:46:36,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:46:36,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 286 transitions. [2022-01-19 05:46:36,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 40.857142857142854) internal successors, (286), 7 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:36,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:36,371 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:36,371 INFO L186 Difference]: Start difference. First operand has 68 places, 51 transitions, 118 flow. Second operand 7 states and 286 transitions. [2022-01-19 05:46:36,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 43 transitions, 138 flow [2022-01-19 05:46:36,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 130 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 05:46:36,372 INFO L242 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2022-01-19 05:46:36,372 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2022-01-19 05:46:36,374 INFO L334 CegarLoopForPetriNet]: 62 programPoint places, -8 predicate places. [2022-01-19 05:46:36,374 INFO L470 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2022-01-19 05:46:36,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 40.4) internal successors, (404), 10 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:36,376 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-19 05:46:36,377 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-19 05:46:36,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 05:46:36,379 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-19 05:46:36,381 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 05:46:36,381 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 05:46:36,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 05:46:36 BasicIcfg [2022-01-19 05:46:36,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 05:46:36,388 INFO L158 Benchmark]: Toolchain (without parser) took 1846.15ms. Allocated memory was 411.0MB in the beginning and 564.1MB in the end (delta: 153.1MB). Free memory was 354.2MB in the beginning and 423.1MB in the end (delta: -68.9MB). Peak memory consumption was 85.6MB. Max. memory is 16.0GB. [2022-01-19 05:46:36,389 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 411.0MB. Free memory was 372.0MB in the beginning and 372.0MB in the end (delta: 69.6kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 05:46:36,391 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.99ms. Allocated memory was 411.0MB in the beginning and 564.1MB in the end (delta: 153.1MB). Free memory was 354.0MB in the beginning and 526.9MB in the end (delta: -172.9MB). Peak memory consumption was 10.1MB. Max. memory is 16.0GB. [2022-01-19 05:46:36,391 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.39ms. Allocated memory is still 564.1MB. Free memory was 526.9MB in the beginning and 524.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 05:46:36,393 INFO L158 Benchmark]: Boogie Preprocessor took 14.96ms. Allocated memory is still 564.1MB. Free memory was 524.8MB in the beginning and 523.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 05:46:36,393 INFO L158 Benchmark]: RCFGBuilder took 321.26ms. Allocated memory is still 564.1MB. Free memory was 523.5MB in the beginning and 508.0MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-19 05:46:36,393 INFO L158 Benchmark]: TraceAbstraction took 1113.71ms. Allocated memory is still 564.1MB. Free memory was 507.0MB in the beginning and 423.1MB in the end (delta: 83.9MB). Peak memory consumption was 83.9MB. Max. memory is 16.0GB. [2022-01-19 05:46:36,395 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 411.0MB. Free memory was 372.0MB in the beginning and 372.0MB in the end (delta: 69.6kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 367.99ms. Allocated memory was 411.0MB in the beginning and 564.1MB in the end (delta: 153.1MB). Free memory was 354.0MB in the beginning and 526.9MB in the end (delta: -172.9MB). Peak memory consumption was 10.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 24.39ms. Allocated memory is still 564.1MB. Free memory was 526.9MB in the beginning and 524.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 14.96ms. Allocated memory is still 564.1MB. Free memory was 524.8MB in the beginning and 523.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 321.26ms. Allocated memory is still 564.1MB. Free memory was 523.5MB in the beginning and 508.0MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 1113.71ms. Allocated memory is still 564.1MB. Free memory was 507.0MB in the beginning and 423.1MB in the end (delta: 83.9MB). Peak memory consumption was 83.9MB. Max. memory is 16.0GB. * 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 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 2 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: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 77 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 32 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=1, InterpolantAutomatonStates: 21, 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, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-19 05:46:36,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...