/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_42-traces-ex-mini_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 05:46:44,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 05:46:44,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 05:46:44,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 05:46:44,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 05:46:44,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 05:46:44,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 05:46:44,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 05:46:44,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 05:46:44,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 05:46:44,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 05:46:44,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 05:46:44,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 05:46:44,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 05:46:44,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 05:46:44,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 05:46:44,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 05:46:44,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 05:46:44,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 05:46:44,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 05:46:44,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 05:46:44,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 05:46:44,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 05:46:44,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 05:46:44,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-19 05:46:44,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 05:46:44,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 05:46:44,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 05:46:44,481 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 05:46:44,507 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 05:46:44,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 05:46:44,509 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 05:46:44,509 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 05:46:44,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 05:46:44,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 05:46:44,509 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 05:46:44,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 05:46:44,509 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 05:46:44,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 05:46:44,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 05:46:44,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 05:46:44,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 05:46:44,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 05:46:44,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 05:46:44,510 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 05:46:44,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 05:46:44,511 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 05:46:44,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 05:46:44,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 05:46:44,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 05:46:44,511 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 05:46:44,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 05:46:44,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 05:46:44,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 05:46:44,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 05:46:44,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 05:46:44,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 05:46:44,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 05:46:44,512 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 05:46:44,512 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 05:46:44,512 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 05:46:44,512 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 05:46:44,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 05:46:44,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 05:46:44,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 05:46:44,696 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 05:46:44,697 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 05:46:44,697 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.i [2022-01-19 05:46:44,737 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14fb1904b/90108f35fc1b4a1d92fb0f9784e1e954/FLAG5c0a5d16d [2022-01-19 05:46:45,105 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 05:46:45,106 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.i [2022-01-19 05:46:45,115 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14fb1904b/90108f35fc1b4a1d92fb0f9784e1e954/FLAG5c0a5d16d [2022-01-19 05:46:45,512 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14fb1904b/90108f35fc1b4a1d92fb0f9784e1e954 [2022-01-19 05:46:45,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 05:46:45,515 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 05:46:45,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 05:46:45,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 05:46:45,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 05:46:45,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bbea795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45, skipping insertion in model container [2022-01-19 05:46:45,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 05:46:45,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 05:46:45,680 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_42-traces-ex-mini_true.i[1091,1104] [2022-01-19 05:46:45,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 05:46:45,776 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 05:46:45,786 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_42-traces-ex-mini_true.i[1091,1104] [2022-01-19 05:46:45,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 05:46:45,846 INFO L208 MainTranslator]: Completed translation [2022-01-19 05:46:45,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45 WrapperNode [2022-01-19 05:46:45,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 05:46:45,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 05:46:45,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 05:46:45,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 05:46:45,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,886 INFO L137 Inliner]: procedures = 162, calls = 35, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-01-19 05:46:45,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 05:46:45,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 05:46:45,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 05:46:45,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 05:46:45,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 05:46:45,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 05:46:45,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 05:46:45,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 05:46:45,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (1/1) ... [2022-01-19 05:46:45,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 05:46:45,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:46:45,936 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 05:46:45,938 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 05:46:45,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 05:46:45,961 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-19 05:46:45,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 05:46:45,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 05:46:45,961 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-01-19 05:46:45,961 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-01-19 05:46:45,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 05:46:45,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 05:46:45,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 05:46:45,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 05:46:45,963 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 05:46:46,045 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 05:46:46,046 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 05:46:46,172 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 05:46:46,177 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 05:46:46,177 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 05:46:46,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 05:46:46 BoogieIcfgContainer [2022-01-19 05:46:46,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 05:46:46,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 05:46:46,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 05:46:46,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 05:46:46,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 05:46:45" (1/3) ... [2022-01-19 05:46:46,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd8f50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 05:46:46, skipping insertion in model container [2022-01-19 05:46:46,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:46:45" (2/3) ... [2022-01-19 05:46:46,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd8f50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 05:46:46, skipping insertion in model container [2022-01-19 05:46:46,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 05:46:46" (3/3) ... [2022-01-19 05:46:46,184 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_42-traces-ex-mini_true.i [2022-01-19 05:46:46,188 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 05:46:46,188 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 05:46:46,188 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 05:46:46,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,241 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,241 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,241 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,241 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,241 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,241 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,242 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,242 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,242 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,242 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,242 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,243 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,243 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,243 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,243 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,244 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,244 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,244 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,244 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,247 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,247 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,247 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,247 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,248 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,248 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:46:46,249 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 05:46:46,313 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 05:46:46,318 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 05:46:46,318 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 05:46:46,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 161 flow [2022-01-19 05:46:46,353 INFO L129 PetriNetUnfolder]: 1/77 cut-off events. [2022-01-19 05:46:46,353 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:46:46,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 1/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2022-01-19 05:46:46,356 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 78 transitions, 161 flow [2022-01-19 05:46:46,359 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 64 transitions, 131 flow [2022-01-19 05:46:46,371 INFO L129 PetriNetUnfolder]: 0/63 cut-off events. [2022-01-19 05:46:46,371 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:46:46,371 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:46:46,372 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] [2022-01-19 05:46:46,372 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 05:46:46,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:46:46,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1063551480, now seen corresponding path program 1 times [2022-01-19 05:46:46,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:46:46,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623656233] [2022-01-19 05:46:46,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:46:46,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:46:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:46:46,722 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 05:46:46,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:46:46,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623656233] [2022-01-19 05:46:46,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623656233] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:46:46,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:46:46,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 05:46:46,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566899623] [2022-01-19 05:46:46,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:46:46,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 05:46:46,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:46:46,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 05:46:46,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 05:46:46,777 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 78 [2022-01-19 05:46:46,782 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 64 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 68.2) internal successors, (341), 5 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 05:46:46,782 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:46:46,782 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 78 [2022-01-19 05:46:46,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:46:46,858 INFO L129 PetriNetUnfolder]: 8/99 cut-off events. [2022-01-19 05:46:46,858 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 05:46:46,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 99 events. 8/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 148 event pairs, 0 based on Foata normal form. 3/101 useless extension candidates. Maximal degree in co-relation 87. Up to 10 conditions per place. [2022-01-19 05:46:46,860 INFO L132 encePairwiseOnDemand]: 72/78 looper letters, 8 selfloop transitions, 3 changer transitions 9/76 dead transitions. [2022-01-19 05:46:46,860 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 76 transitions, 195 flow [2022-01-19 05:46:46,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 05:46:46,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 05:46:46,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 491 transitions. [2022-01-19 05:46:46,875 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8992673992673993 [2022-01-19 05:46:46,875 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 491 transitions. [2022-01-19 05:46:46,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 491 transitions. [2022-01-19 05:46:46,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:46:46,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 491 transitions. [2022-01-19 05:46:46,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 70.14285714285714) internal successors, (491), 7 states have internal predecessors, (491), 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 05:46:46,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 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) [2022-01-19 05:46:46,897 INFO L81 ComplementDD]: Finished complementDD. Result has 8 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) [2022-01-19 05:46:46,898 INFO L186 Difference]: Start difference. First operand has 68 places, 64 transitions, 131 flow. Second operand 7 states and 491 transitions. [2022-01-19 05:46:46,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 76 transitions, 195 flow [2022-01-19 05:46:46,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 76 transitions, 194 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 05:46:46,907 INFO L242 Difference]: Finished difference. Result has 78 places, 64 transitions, 149 flow [2022-01-19 05:46:46,909 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=149, PETRI_PLACES=78, PETRI_TRANSITIONS=64} [2022-01-19 05:46:46,912 INFO L334 CegarLoopForPetriNet]: 68 programPoint places, 10 predicate places. [2022-01-19 05:46:46,913 INFO L470 AbstractCegarLoop]: Abstraction has has 78 places, 64 transitions, 149 flow [2022-01-19 05:46:46,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.2) internal successors, (341), 5 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 05:46:46,914 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:46:46,914 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] [2022-01-19 05:46:46,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 05:46:46,914 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 05:46:46,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:46:46,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1855259157, now seen corresponding path program 1 times [2022-01-19 05:46:46,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:46:46,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24159803] [2022-01-19 05:46:46,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:46:46,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:46:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:46:47,103 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 05:46:47,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:46:47,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24159803] [2022-01-19 05:46:47,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24159803] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:46:47,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:46:47,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 05:46:47,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11939236] [2022-01-19 05:46:47,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:46:47,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 05:46:47,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:46:47,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 05:46:47,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 05:46:47,107 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 78 [2022-01-19 05:46:47,107 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 64 transitions, 149 flow. Second operand has 7 states, 7 states have (on average 50.42857142857143) internal successors, (353), 7 states have internal predecessors, (353), 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 05:46:47,107 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:46:47,107 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 78 [2022-01-19 05:46:47,107 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:46:47,229 INFO L129 PetriNetUnfolder]: 6/94 cut-off events. [2022-01-19 05:46:47,229 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-01-19 05:46:47,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 94 events. 6/94 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 108 event pairs, 2 based on Foata normal form. 4/98 useless extension candidates. Maximal degree in co-relation 146. Up to 15 conditions per place. [2022-01-19 05:46:47,230 INFO L132 encePairwiseOnDemand]: 72/78 looper letters, 21 selfloop transitions, 6 changer transitions 1/66 dead transitions. [2022-01-19 05:46:47,230 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 66 transitions, 209 flow [2022-01-19 05:46:47,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 05:46:47,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 05:46:47,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 312 transitions. [2022-01-19 05:46:47,231 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-01-19 05:46:47,232 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 312 transitions. [2022-01-19 05:46:47,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 312 transitions. [2022-01-19 05:46:47,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:46:47,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 312 transitions. [2022-01-19 05:46:47,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 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 05:46:47,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 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 05:46:47,234 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 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 05:46:47,234 INFO L186 Difference]: Start difference. First operand has 78 places, 64 transitions, 149 flow. Second operand 6 states and 312 transitions. [2022-01-19 05:46:47,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 66 transitions, 209 flow [2022-01-19 05:46:47,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 66 transitions, 195 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-01-19 05:46:47,236 INFO L242 Difference]: Finished difference. Result has 73 places, 64 transitions, 147 flow [2022-01-19 05:46:47,236 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=147, PETRI_PLACES=73, PETRI_TRANSITIONS=64} [2022-01-19 05:46:47,236 INFO L334 CegarLoopForPetriNet]: 68 programPoint places, 5 predicate places. [2022-01-19 05:46:47,237 INFO L470 AbstractCegarLoop]: Abstraction has has 73 places, 64 transitions, 147 flow [2022-01-19 05:46:47,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.42857142857143) internal successors, (353), 7 states have internal predecessors, (353), 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 05:46:47,237 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:46:47,237 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] [2022-01-19 05:46:47,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 05:46:47,238 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 05:46:47,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:46:47,238 INFO L85 PathProgramCache]: Analyzing trace with hash -237159032, now seen corresponding path program 1 times [2022-01-19 05:46:47,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:46:47,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48219471] [2022-01-19 05:46:47,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:46:47,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:46:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 05:46:47,303 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 05:46:47,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 05:46:47,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48219471] [2022-01-19 05:46:47,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48219471] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 05:46:47,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 05:46:47,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 05:46:47,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340617683] [2022-01-19 05:46:47,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 05:46:47,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 05:46:47,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 05:46:47,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 05:46:47,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 05:46:47,306 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 78 [2022-01-19 05:46:47,306 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 64 transitions, 147 flow. Second operand has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 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 05:46:47,306 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 05:46:47,306 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 78 [2022-01-19 05:46:47,307 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 05:46:47,351 INFO L129 PetriNetUnfolder]: 5/81 cut-off events. [2022-01-19 05:46:47,351 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-01-19 05:46:47,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 81 events. 5/81 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 2 based on Foata normal form. 1/82 useless extension candidates. Maximal degree in co-relation 70. Up to 17 conditions per place. [2022-01-19 05:46:47,352 INFO L132 encePairwiseOnDemand]: 73/78 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions. [2022-01-19 05:46:47,352 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 61 transitions, 185 flow [2022-01-19 05:46:47,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 05:46:47,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 05:46:47,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 288 transitions. [2022-01-19 05:46:47,353 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7384615384615385 [2022-01-19 05:46:47,353 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 288 transitions. [2022-01-19 05:46:47,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 288 transitions. [2022-01-19 05:46:47,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 05:46:47,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 288 transitions. [2022-01-19 05:46:47,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 57.6) internal successors, (288), 5 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 05:46:47,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 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 05:46:47,355 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 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 05:46:47,355 INFO L186 Difference]: Start difference. First operand has 73 places, 64 transitions, 147 flow. Second operand 5 states and 288 transitions. [2022-01-19 05:46:47,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 61 transitions, 185 flow [2022-01-19 05:46:47,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 61 transitions, 173 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-01-19 05:46:47,356 INFO L242 Difference]: Finished difference. Result has 67 places, 0 transitions, 0 flow [2022-01-19 05:46:47,356 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=67, PETRI_TRANSITIONS=0} [2022-01-19 05:46:47,357 INFO L334 CegarLoopForPetriNet]: 68 programPoint places, -1 predicate places. [2022-01-19 05:46:47,357 INFO L470 AbstractCegarLoop]: Abstraction has has 67 places, 0 transitions, 0 flow [2022-01-19 05:46:47,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 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 05:46:47,359 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-19 05:46:47,359 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-19 05:46:47,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 05:46:47,362 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-19 05:46:47,363 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 05:46:47,363 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 05:46:47,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 05:46:47 BasicIcfg [2022-01-19 05:46:47,365 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 05:46:47,366 INFO L158 Benchmark]: Toolchain (without parser) took 1850.54ms. Allocated memory was 367.0MB in the beginning and 486.5MB in the end (delta: 119.5MB). Free memory was 307.1MB in the beginning and 334.9MB in the end (delta: -27.8MB). Peak memory consumption was 90.0MB. Max. memory is 16.0GB. [2022-01-19 05:46:47,366 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 367.0MB. Free memory was 325.6MB in the beginning and 325.5MB in the end (delta: 69.5kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 05:46:47,367 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.00ms. Allocated memory was 367.0MB in the beginning and 486.5MB in the end (delta: 119.5MB). Free memory was 306.9MB in the beginning and 447.1MB in the end (delta: -140.2MB). Peak memory consumption was 7.1MB. Max. memory is 16.0GB. [2022-01-19 05:46:47,367 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.65ms. Allocated memory is still 486.5MB. Free memory was 447.1MB in the beginning and 445.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 05:46:47,368 INFO L158 Benchmark]: Boogie Preprocessor took 16.41ms. Allocated memory is still 486.5MB. Free memory was 445.0MB in the beginning and 443.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 05:46:47,368 INFO L158 Benchmark]: RCFGBuilder took 267.51ms. Allocated memory is still 486.5MB. Free memory was 443.9MB in the beginning and 429.3MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-19 05:46:47,368 INFO L158 Benchmark]: TraceAbstraction took 1185.58ms. Allocated memory is still 486.5MB. Free memory was 429.3MB in the beginning and 334.9MB in the end (delta: 94.4MB). Peak memory consumption was 94.4MB. Max. memory is 16.0GB. [2022-01-19 05:46:47,370 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 367.0MB. Free memory was 325.6MB in the beginning and 325.5MB in the end (delta: 69.5kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 331.00ms. Allocated memory was 367.0MB in the beginning and 486.5MB in the end (delta: 119.5MB). Free memory was 306.9MB in the beginning and 447.1MB in the end (delta: -140.2MB). Peak memory consumption was 7.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 37.65ms. Allocated memory is still 486.5MB. Free memory was 447.1MB in the beginning and 445.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 16.41ms. Allocated memory is still 486.5MB. Free memory was 445.0MB in the beginning and 443.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 267.51ms. Allocated memory is still 486.5MB. Free memory was 443.9MB in the beginning and 429.3MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 1185.58ms. Allocated memory is still 486.5MB. Free memory was 429.3MB in the beginning and 334.9MB in the end (delta: 94.4MB). Peak memory consumption was 94.4MB. 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, 91 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: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 58 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 145 IncrementalHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 16 mSDtfsCounter, 145 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=149occurred in iteration=1, InterpolantAutomatonStates: 18, 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, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 169 ConstructedInterpolants, 0 QuantifiedInterpolants, 721 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 05:46:47,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...