/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:52:17,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:52:17,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:52:17,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:52:17,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:52:17,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:52:17,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:52:17,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:52:17,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:52:17,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:52:17,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:52:17,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:52:17,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:52:17,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:52:17,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:52:17,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:52:17,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:52:17,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:52:17,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:52:17,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:52:17,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:52:17,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:52:17,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:52:17,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:52:17,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 14:52:17,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 14:52:17,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 14:52:17,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 14:52:17,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 14:52:17,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 14:52:17,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 14:52:17,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 14:52:17,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 14:52:17,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:52:17,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:52:17,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:52:17,458 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-FA-NoLbe.epf [2021-01-20 14:52:17,512 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:52:17,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:52:17,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:52:17,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:52:17,518 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:52:17,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:52:17,519 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:52:17,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:52:17,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:52:17,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:52:17,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:52:17,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:52:17,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:52:17,521 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:52:17,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:52:17,522 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:52:17,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:52:17,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:52:17,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:52:17,523 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:52:17,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:52:17,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:52:17,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:52:17,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:52:17,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:52:17,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:52:17,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:52:17,525 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:52:17,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:52:17,525 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:52:17,525 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:52:17,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:52:17,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:52:17,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:52:17,967 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:52:17,968 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:52:17,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i [2021-01-20 14:52:18,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc268f2e/d5e9fe771fe74e4dacc3c1d237e7b565/FLAG57df6d10a [2021-01-20 14:52:18,776 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:52:18,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i [2021-01-20 14:52:18,802 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc268f2e/d5e9fe771fe74e4dacc3c1d237e7b565/FLAG57df6d10a [2021-01-20 14:52:19,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc268f2e/d5e9fe771fe74e4dacc3c1d237e7b565 [2021-01-20 14:52:19,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:52:19,043 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:52:19,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:52:19,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:52:19,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:52:19,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:52:19" (1/1) ... [2021-01-20 14:52:19,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a64eccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:19, skipping insertion in model container [2021-01-20 14:52:19,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:52:19" (1/1) ... [2021-01-20 14:52:19,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:52:19,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:52:19,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:52:19,652 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:52:19,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:52:19,884 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:52:19,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:19 WrapperNode [2021-01-20 14:52:19,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:52:19,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:52:19,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:52:19,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:52:19,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:19" (1/1) ... [2021-01-20 14:52:19,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:19" (1/1) ... [2021-01-20 14:52:19,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:52:19,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:52:19,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:52:19,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:52:19,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:19" (1/1) ... [2021-01-20 14:52:19,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:19" (1/1) ... [2021-01-20 14:52:19,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:19" (1/1) ... [2021-01-20 14:52:19,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:19" (1/1) ... [2021-01-20 14:52:19,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:19" (1/1) ... [2021-01-20 14:52:19,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:19" (1/1) ... [2021-01-20 14:52:19,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:19" (1/1) ... [2021-01-20 14:52:19,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:52:19,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:52:19,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:52:19,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:52:19,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:52:20,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:52:20,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:52:20,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:52:20,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:52:20,065 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:52:20,065 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:52:20,065 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:52:20,066 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:52:20,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:52:20,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:52:20,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:52:20,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:52:20,068 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 14:52:20,598 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:52:20,599 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:52:20,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:52:20 BoogieIcfgContainer [2021-01-20 14:52:20,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:52:20,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:52:20,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:52:20,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:52:20,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:52:19" (1/3) ... [2021-01-20 14:52:20,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171c8c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:52:20, skipping insertion in model container [2021-01-20 14:52:20,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:19" (2/3) ... [2021-01-20 14:52:20,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171c8c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:52:20, skipping insertion in model container [2021-01-20 14:52:20,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:52:20" (3/3) ... [2021-01-20 14:52:20,611 INFO L111 eAbstractionObserver]: Analyzing ICFG thin000_tso.opt.i [2021-01-20 14:52:20,626 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:52:20,627 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:52:20,630 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:52:20,631 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:52:20,670 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,670 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,671 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,671 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,671 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,671 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,671 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,672 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,673 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,673 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,673 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,674 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,675 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,675 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,676 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,676 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,681 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,681 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,682 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,682 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,690 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,690 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:20,693 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:52:20,706 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-20 14:52:20,743 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:52:20,743 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:52:20,744 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:52:20,744 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:52:20,744 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:52:20,744 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:52:20,745 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:52:20,745 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:52:20,760 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 65 transitions, 140 flow [2021-01-20 14:52:20,873 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:52:20,880 INFO L276 IsEmpty]: Start isEmpty. Operand has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:52:20,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-20 14:52:20,913 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:52:20,915 INFO L504 BasicCegarLoop]: 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] [2021-01-20 14:52:20,916 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:52:20,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:52:20,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1210534896, now seen corresponding path program 1 times [2021-01-20 14:52:20,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:52:20,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319891595] [2021-01-20 14:52:20,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:52:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:52:21,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:52:21,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319891595] [2021-01-20 14:52:21,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:52:21,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:52:21,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256839085] [2021-01-20 14:52:21,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:52:21,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:52:21,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:52:21,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:52:21,523 INFO L87 Difference]: Start difference. First operand has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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) Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:52:21,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:52:21,815 INFO L93 Difference]: Finished difference Result 1587 states and 4135 transitions. [2021-01-20 14:52:21,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:52:21,818 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) Word has length 37 [2021-01-20 14:52:21,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:52:21,842 INFO L225 Difference]: With dead ends: 1587 [2021-01-20 14:52:21,843 INFO L226 Difference]: Without dead ends: 670 [2021-01-20 14:52:21,844 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:52:21,845 INFO L78 Accepts]: Start accepts. Automaton has 670 states. Word has length 37 [2021-01-20 14:52:21,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:52:21,847 INFO L481 AbstractCegarLoop]: Abstraction has 670 states. [2021-01-20 14:52:21,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:52:21,847 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states. [2021-01-20 14:52:21,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-01-20 14:52:21,855 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:52:21,855 INFO L504 BasicCegarLoop]: 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] [2021-01-20 14:52:21,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:52:21,855 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:52:21,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:52:21,857 INFO L82 PathProgramCache]: Analyzing trace with hash -192993615, now seen corresponding path program 1 times [2021-01-20 14:52:21,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:52:21,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108783805] [2021-01-20 14:52:21,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:52:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:52:22,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:52:22,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108783805] [2021-01-20 14:52:22,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:52:22,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:52:22,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152429647] [2021-01-20 14:52:22,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:52:22,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:52:22,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:52:22,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:52:22,108 INFO L87 Difference]: Start difference. First operand 670 states. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:52:22,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:52:22,344 INFO L93 Difference]: Finished difference Result 730 states and 1820 transitions. [2021-01-20 14:52:22,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:52:22,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) Word has length 39 [2021-01-20 14:52:22,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:52:22,351 INFO L225 Difference]: With dead ends: 730 [2021-01-20 14:52:22,352 INFO L226 Difference]: Without dead ends: 590 [2021-01-20 14:52:22,353 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:52:22,353 INFO L78 Accepts]: Start accepts. Automaton has 590 states. Word has length 39 [2021-01-20 14:52:22,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:52:22,354 INFO L481 AbstractCegarLoop]: Abstraction has 590 states. [2021-01-20 14:52:22,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:52:22,354 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states. [2021-01-20 14:52:22,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-01-20 14:52:22,357 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:52:22,357 INFO L504 BasicCegarLoop]: 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] [2021-01-20 14:52:22,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:52:22,358 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:52:22,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:52:22,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1324573390, now seen corresponding path program 1 times [2021-01-20 14:52:22,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:52:22,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067495048] [2021-01-20 14:52:22,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:52:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:52:22,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:52:22,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067495048] [2021-01-20 14:52:22,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:52:22,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:52:22,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23068634] [2021-01-20 14:52:22,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:52:22,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:52:22,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:52:22,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:52:22,573 INFO L87 Difference]: Start difference. First operand 590 states. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:52:22,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:52:22,902 INFO L93 Difference]: Finished difference Result 790 states and 1958 transitions. [2021-01-20 14:52:22,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:52:22,904 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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) Word has length 41 [2021-01-20 14:52:22,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:52:22,908 INFO L225 Difference]: With dead ends: 790 [2021-01-20 14:52:22,908 INFO L226 Difference]: Without dead ends: 445 [2021-01-20 14:52:22,909 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:52:22,909 INFO L78 Accepts]: Start accepts. Automaton has 445 states. Word has length 41 [2021-01-20 14:52:22,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:52:22,910 INFO L481 AbstractCegarLoop]: Abstraction has 445 states. [2021-01-20 14:52:22,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:52:22,910 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states. [2021-01-20 14:52:22,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-20 14:52:22,912 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:52:22,912 INFO L504 BasicCegarLoop]: 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] [2021-01-20 14:52:22,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:52:22,913 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:52:22,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:52:22,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1149488442, now seen corresponding path program 1 times [2021-01-20 14:52:22,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:52:22,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65248535] [2021-01-20 14:52:22,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:52:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:52:23,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:52:23,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65248535] [2021-01-20 14:52:23,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:52:23,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:52:23,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736829946] [2021-01-20 14:52:23,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:52:23,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:52:23,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:52:23,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:52:23,150 INFO L87 Difference]: Start difference. First operand 445 states. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:52:23,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:52:23,340 INFO L93 Difference]: Finished difference Result 365 states and 857 transitions. [2021-01-20 14:52:23,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:52:23,341 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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) Word has length 42 [2021-01-20 14:52:23,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:52:23,342 INFO L225 Difference]: With dead ends: 365 [2021-01-20 14:52:23,342 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:52:23,343 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:52:23,343 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 42 [2021-01-20 14:52:23,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:52:23,343 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:52:23,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:52:23,344 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:52:23,344 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:52:23,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:52:23,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:52:23 BasicIcfg [2021-01-20 14:52:23,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:52:23,353 INFO L168 Benchmark]: Toolchain (without parser) took 4308.43 ms. Allocated memory was 302.0 MB in the beginning and 383.8 MB in the end (delta: 81.8 MB). Free memory was 275.7 MB in the beginning and 336.4 MB in the end (delta: -60.6 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.0 GB. [2021-01-20 14:52:23,354 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 302.0 MB. Free memory was 270.3 MB in the beginning and 270.2 MB in the end (delta: 84.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:52:23,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 840.17 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 278.6 MB in the end (delta: -3.1 MB). Peak memory consumption was 30.7 MB. Max. memory is 16.0 GB. [2021-01-20 14:52:23,355 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.78 ms. Allocated memory is still 302.0 MB. Free memory was 278.6 MB in the beginning and 276.7 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:52:23,356 INFO L168 Benchmark]: Boogie Preprocessor took 34.19 ms. Allocated memory is still 302.0 MB. Free memory was 276.7 MB in the beginning and 274.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:52:23,357 INFO L168 Benchmark]: RCFGBuilder took 624.05 ms. Allocated memory is still 302.0 MB. Free memory was 274.6 MB in the beginning and 253.6 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-01-20 14:52:23,358 INFO L168 Benchmark]: TraceAbstraction took 2747.15 ms. Allocated memory was 302.0 MB in the beginning and 383.8 MB in the end (delta: 81.8 MB). Free memory was 253.6 MB in the beginning and 336.4 MB in the end (delta: -82.8 MB). Peak memory consumption was 72.1 kB. Max. memory is 16.0 GB. [2021-01-20 14:52:23,363 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 302.0 MB. Free memory was 270.3 MB in the beginning and 270.2 MB in the end (delta: 84.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 840.17 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 278.6 MB in the end (delta: -3.1 MB). Peak memory consumption was 30.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 53.78 ms. Allocated memory is still 302.0 MB. Free memory was 278.6 MB in the beginning and 276.7 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 34.19 ms. Allocated memory is still 302.0 MB. Free memory was 276.7 MB in the beginning and 274.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 624.05 ms. Allocated memory is still 302.0 MB. Free memory was 274.6 MB in the beginning and 253.6 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2747.15 ms. Allocated memory was 302.0 MB in the beginning and 383.8 MB in the end (delta: 81.8 MB). Free memory was 253.6 MB in the beginning and 336.4 MB in the end (delta: -82.8 MB). Peak memory consumption was 72.1 kB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 297 SDtfs, 381 SDslu, 926 SDs, 0 SdLazy, 92 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1321occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 155 ConstructedInterpolants, 0 QuantifiedInterpolants, 17567 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...