/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/safe018_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-6f57305 [2021-01-26 17:29:28,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-26 17:29:28,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-26 17:29:28,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-26 17:29:28,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-26 17:29:28,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-26 17:29:28,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-26 17:29:28,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-26 17:29:28,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-26 17:29:28,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-26 17:29:28,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-26 17:29:28,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-26 17:29:28,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-26 17:29:28,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-26 17:29:28,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-26 17:29:28,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-26 17:29:28,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-26 17:29:28,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-26 17:29:28,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-26 17:29:28,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-26 17:29:28,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-26 17:29:28,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-26 17:29:28,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-26 17:29:28,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-26 17:29:28,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-26 17:29:28,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-26 17:29:28,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-26 17:29:28,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-26 17:29:28,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-26 17:29:28,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-26 17:29:28,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-26 17:29:28,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-26 17:29:28,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-26 17:29:28,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-26 17:29:28,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-26 17:29:28,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-26 17:29:28,534 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 [2021-01-26 17:29:28,592 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-26 17:29:28,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-26 17:29:28,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-26 17:29:28,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-26 17:29:28,597 INFO L138 SettingsManager]: * Use SBE=true [2021-01-26 17:29:28,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-26 17:29:28,598 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-26 17:29:28,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-26 17:29:28,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-26 17:29:28,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-26 17:29:28,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-26 17:29:28,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-26 17:29:28,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-26 17:29:28,601 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-26 17:29:28,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-26 17:29:28,601 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-26 17:29:28,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-26 17:29:28,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-26 17:29:28,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-26 17:29:28,602 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-26 17:29:28,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-26 17:29:28,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:29:28,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-26 17:29:28,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-26 17:29:28,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-26 17:29:28,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-26 17:29:28,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-26 17:29:28,604 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-26 17:29:28,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-26 17:29:28,604 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-26 17:29:28,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-26 17:29:28,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-26 17:29:29,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-26 17:29:29,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-26 17:29:29,023 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-26 17:29:29,026 INFO L275 PluginConnector]: CDTParser initialized [2021-01-26 17:29:29,027 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i [2021-01-26 17:29:29,107 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e8741962/0c8f1c9310a34f7198684aa8b08791d1/FLAG4681d965d [2021-01-26 17:29:29,851 INFO L306 CDTParser]: Found 1 translation units. [2021-01-26 17:29:29,852 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i [2021-01-26 17:29:29,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e8741962/0c8f1c9310a34f7198684aa8b08791d1/FLAG4681d965d [2021-01-26 17:29:30,098 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e8741962/0c8f1c9310a34f7198684aa8b08791d1 [2021-01-26 17:29:30,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-26 17:29:30,117 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-26 17:29:30,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-26 17:29:30,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-26 17:29:30,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-26 17:29:30,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:29:30" (1/1) ... [2021-01-26 17:29:30,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@322ae73b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:30, skipping insertion in model container [2021-01-26 17:29:30,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:29:30" (1/1) ... [2021-01-26 17:29:30,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-26 17:29:30,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-26 17:29:30,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:29:30,708 INFO L203 MainTranslator]: Completed pre-run [2021-01-26 17:29:30,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:29:30,888 INFO L208 MainTranslator]: Completed translation [2021-01-26 17:29:30,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:30 WrapperNode [2021-01-26 17:29:30,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-26 17:29:30,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-26 17:29:30,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-26 17:29:30,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-26 17:29:30,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:30" (1/1) ... [2021-01-26 17:29:30,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:30" (1/1) ... [2021-01-26 17:29:30,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-26 17:29:30,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-26 17:29:30,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-26 17:29:30,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-26 17:29:30,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:30" (1/1) ... [2021-01-26 17:29:30,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:30" (1/1) ... [2021-01-26 17:29:30,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:30" (1/1) ... [2021-01-26 17:29:30,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:30" (1/1) ... [2021-01-26 17:29:30,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:30" (1/1) ... [2021-01-26 17:29:30,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:30" (1/1) ... [2021-01-26 17:29:30,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:30" (1/1) ... [2021-01-26 17:29:30,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-26 17:29:30,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-26 17:29:30,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-26 17:29:30,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-26 17:29:30,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:30" (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 [2021-01-26 17:29:31,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-26 17:29:31,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-26 17:29:31,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-26 17:29:31,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-26 17:29:31,058 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-26 17:29:31,058 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-26 17:29:31,059 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-26 17:29:31,059 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-26 17:29:31,059 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-26 17:29:31,059 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-26 17:29:31,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-26 17:29:31,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-26 17:29:31,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-26 17:29:31,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-26 17:29:31,061 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-26 17:29:31,633 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-26 17:29:31,634 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-26 17:29:31,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:29:31 BoogieIcfgContainer [2021-01-26 17:29:31,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-26 17:29:31,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-26 17:29:31,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-26 17:29:31,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-26 17:29:31,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 05:29:30" (1/3) ... [2021-01-26 17:29:31,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b64f9ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:29:31, skipping insertion in model container [2021-01-26 17:29:31,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:29:30" (2/3) ... [2021-01-26 17:29:31,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b64f9ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:29:31, skipping insertion in model container [2021-01-26 17:29:31,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:29:31" (3/3) ... [2021-01-26 17:29:31,648 INFO L111 eAbstractionObserver]: Analyzing ICFG safe018_pso.opt.i [2021-01-26 17:29:31,667 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-26 17:29:31,668 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-26 17:29:31,672 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-26 17:29:31,673 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-26 17:29:31,724 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,724 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,724 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,724 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,725 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,725 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,725 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,725 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,727 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,728 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,728 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,728 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,728 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,728 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,729 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,729 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,730 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,730 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,732 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,732 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,732 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,734 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,734 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,735 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,735 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,740 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,741 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,742 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,742 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,750 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,751 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,752 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,752 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,758 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,759 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,759 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,759 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,763 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,763 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,764 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,764 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:29:31,767 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-26 17:29:31,782 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-26 17:29:31,826 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-26 17:29:31,826 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-26 17:29:31,827 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-26 17:29:31,827 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-26 17:29:31,827 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-26 17:29:31,827 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-26 17:29:31,827 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-26 17:29:31,827 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-26 17:29:31,846 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 78 transitions, 171 flow [2021-01-26 17:29:32,631 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8448 states, 8446 states have (on average 3.5893914278948613) internal successors, (30316), 8447 states have internal predecessors, (30316), 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) [2021-01-26 17:29:32,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 8448 states, 8446 states have (on average 3.5893914278948613) internal successors, (30316), 8447 states have internal predecessors, (30316), 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) [2021-01-26 17:29:32,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-26 17:29:32,708 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:29:32,709 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] [2021-01-26 17:29:32,709 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:29:32,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:29:32,716 INFO L82 PathProgramCache]: Analyzing trace with hash 31988960, now seen corresponding path program 1 times [2021-01-26 17:29:32,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:29:32,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664432188] [2021-01-26 17:29:32,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:29:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:29:33,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:29:33,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664432188] [2021-01-26 17:29:33,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:29:33,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:29:33,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081569823] [2021-01-26 17:29:33,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:29:33,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:29:33,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:29:33,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:29:33,355 INFO L87 Difference]: Start difference. First operand has 8448 states, 8446 states have (on average 3.5893914278948613) internal successors, (30316), 8447 states have internal predecessors, (30316), 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 7.0) internal successors, (42), 6 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) [2021-01-26 17:29:33,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:29:33,723 INFO L93 Difference]: Finished difference Result 10464 states and 36160 transitions. [2021-01-26 17:29:33,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:29:33,725 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 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 [2021-01-26 17:29:33,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:29:33,780 INFO L225 Difference]: With dead ends: 10464 [2021-01-26 17:29:33,780 INFO L226 Difference]: Without dead ends: 3954 [2021-01-26 17:29:33,782 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 [2021-01-26 17:29:33,782 INFO L78 Accepts]: Start accepts. Automaton has 3954 states. Word has length 42 [2021-01-26 17:29:33,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:29:33,784 INFO L481 AbstractCegarLoop]: Abstraction has 3954 states. [2021-01-26 17:29:33,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 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) [2021-01-26 17:29:33,785 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states. [2021-01-26 17:29:33,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-26 17:29:33,801 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:29:33,801 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, 1, 1] [2021-01-26 17:29:33,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-26 17:29:33,802 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:29:33,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:29:33,803 INFO L82 PathProgramCache]: Analyzing trace with hash -95647071, now seen corresponding path program 1 times [2021-01-26 17:29:33,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:29:33,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927424396] [2021-01-26 17:29:33,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:29:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:29:33,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:29:34,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927424396] [2021-01-26 17:29:34,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:29:34,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:29:34,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017879008] [2021-01-26 17:29:34,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:29:34,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:29:34,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:29:34,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:29:34,004 INFO L87 Difference]: Start difference. First operand 3954 states. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2021-01-26 17:29:34,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:29:34,331 INFO L93 Difference]: Finished difference Result 4914 states and 16433 transitions. [2021-01-26 17:29:34,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:29:34,332 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 44 [2021-01-26 17:29:34,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:29:34,355 INFO L225 Difference]: With dead ends: 4914 [2021-01-26 17:29:34,355 INFO L226 Difference]: Without dead ends: 2464 [2021-01-26 17:29:34,356 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:29:34,356 INFO L78 Accepts]: Start accepts. Automaton has 2464 states. Word has length 44 [2021-01-26 17:29:34,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:29:34,357 INFO L481 AbstractCegarLoop]: Abstraction has 2464 states. [2021-01-26 17:29:34,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2021-01-26 17:29:34,357 INFO L276 IsEmpty]: Start isEmpty. Operand 2464 states. [2021-01-26 17:29:34,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-26 17:29:34,367 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:29:34,367 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, 1, 1, 1, 1, 1] [2021-01-26 17:29:34,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-26 17:29:34,368 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:29:34,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:29:34,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1389736977, now seen corresponding path program 1 times [2021-01-26 17:29:34,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:29:34,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789803301] [2021-01-26 17:29:34,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:29:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:29:34,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:29:34,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789803301] [2021-01-26 17:29:34,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:29:34,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:29:34,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669236104] [2021-01-26 17:29:34,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:29:34,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:29:34,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:29:34,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:29:34,541 INFO L87 Difference]: Start difference. First operand 2464 states. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2021-01-26 17:29:34,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:29:34,833 INFO L93 Difference]: Finished difference Result 3464 states and 11256 transitions. [2021-01-26 17:29:34,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:29:34,833 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 47 [2021-01-26 17:29:34,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:29:34,848 INFO L225 Difference]: With dead ends: 3464 [2021-01-26 17:29:34,848 INFO L226 Difference]: Without dead ends: 1724 [2021-01-26 17:29:34,850 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:29:34,850 INFO L78 Accepts]: Start accepts. Automaton has 1724 states. Word has length 47 [2021-01-26 17:29:34,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:29:34,852 INFO L481 AbstractCegarLoop]: Abstraction has 1724 states. [2021-01-26 17:29:34,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2021-01-26 17:29:34,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states. [2021-01-26 17:29:34,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-26 17:29:34,858 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:29:34,859 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, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:29:34,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-26 17:29:34,860 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:29:34,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:29:34,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1496327244, now seen corresponding path program 1 times [2021-01-26 17:29:34,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:29:34,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136436741] [2021-01-26 17:29:34,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:29:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:29:35,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:29:35,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136436741] [2021-01-26 17:29:35,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:29:35,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:29:35,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123488017] [2021-01-26 17:29:35,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:29:35,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:29:35,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:29:35,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:29:35,061 INFO L87 Difference]: Start difference. First operand 1724 states. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2021-01-26 17:29:35,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:29:35,248 INFO L93 Difference]: Finished difference Result 2194 states and 6875 transitions. [2021-01-26 17:29:35,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:29:35,250 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 49 [2021-01-26 17:29:35,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:29:35,263 INFO L225 Difference]: With dead ends: 2194 [2021-01-26 17:29:35,263 INFO L226 Difference]: Without dead ends: 1618 [2021-01-26 17:29:35,264 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:29:35,264 INFO L78 Accepts]: Start accepts. Automaton has 1618 states. Word has length 49 [2021-01-26 17:29:35,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:29:35,266 INFO L481 AbstractCegarLoop]: Abstraction has 1618 states. [2021-01-26 17:29:35,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2021-01-26 17:29:35,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1618 states. [2021-01-26 17:29:35,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-26 17:29:35,271 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:29:35,272 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:29:35,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-26 17:29:35,273 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:29:35,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:29:35,275 INFO L82 PathProgramCache]: Analyzing trace with hash 577338396, now seen corresponding path program 1 times [2021-01-26 17:29:35,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:29:35,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102311614] [2021-01-26 17:29:35,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:29:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:29:35,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:29:35,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102311614] [2021-01-26 17:29:35,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:29:35,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:29:35,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132426351] [2021-01-26 17:29:35,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:29:35,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:29:35,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:29:35,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:29:35,464 INFO L87 Difference]: Start difference. First operand 1618 states. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2021-01-26 17:29:35,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:29:35,674 INFO L93 Difference]: Finished difference Result 1777 states and 5456 transitions. [2021-01-26 17:29:35,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:29:35,675 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 50 [2021-01-26 17:29:35,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:29:35,687 INFO L225 Difference]: With dead ends: 1777 [2021-01-26 17:29:35,688 INFO L226 Difference]: Without dead ends: 1273 [2021-01-26 17:29:35,688 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-26 17:29:35,688 INFO L78 Accepts]: Start accepts. Automaton has 1273 states. Word has length 50 [2021-01-26 17:29:35,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:29:35,692 INFO L481 AbstractCegarLoop]: Abstraction has 1273 states. [2021-01-26 17:29:35,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2021-01-26 17:29:35,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states. [2021-01-26 17:29:35,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-26 17:29:35,702 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:29:35,708 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:29:35,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-26 17:29:35,709 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:29:35,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:29:35,709 INFO L82 PathProgramCache]: Analyzing trace with hash -270393692, now seen corresponding path program 1 times [2021-01-26 17:29:35,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:29:35,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754174289] [2021-01-26 17:29:35,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:29:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:29:35,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:29:35,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754174289] [2021-01-26 17:29:35,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:29:35,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-26 17:29:35,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919477502] [2021-01-26 17:29:35,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-26 17:29:35,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:29:35,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-26 17:29:35,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-26 17:29:35,909 INFO L87 Difference]: Start difference. First operand 1273 states. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 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) [2021-01-26 17:29:36,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:29:36,218 INFO L93 Difference]: Finished difference Result 1039 states and 3026 transitions. [2021-01-26 17:29:36,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-26 17:29:36,219 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 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 51 [2021-01-26 17:29:36,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:29:36,224 INFO L225 Difference]: With dead ends: 1039 [2021-01-26 17:29:36,225 INFO L226 Difference]: Without dead ends: 715 [2021-01-26 17:29:36,225 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-01-26 17:29:36,225 INFO L78 Accepts]: Start accepts. Automaton has 715 states. Word has length 51 [2021-01-26 17:29:36,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:29:36,227 INFO L481 AbstractCegarLoop]: Abstraction has 715 states. [2021-01-26 17:29:36,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 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) [2021-01-26 17:29:36,228 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states. [2021-01-26 17:29:36,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-26 17:29:36,232 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:29:36,233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:29:36,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-26 17:29:36,233 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:29:36,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:29:36,234 INFO L82 PathProgramCache]: Analyzing trace with hash 796083109, now seen corresponding path program 1 times [2021-01-26 17:29:36,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:29:36,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915383358] [2021-01-26 17:29:36,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:29:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:29:36,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:29:36,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915383358] [2021-01-26 17:29:36,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:29:36,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:29:36,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978140827] [2021-01-26 17:29:36,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:29:36,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:29:36,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:29:36,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:29:36,405 INFO L87 Difference]: Start difference. First operand 715 states. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-01-26 17:29:36,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:29:36,510 INFO L93 Difference]: Finished difference Result 607 states and 1685 transitions. [2021-01-26 17:29:36,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-26 17:29:36,511 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-01-26 17:29:36,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:29:36,511 INFO L225 Difference]: With dead ends: 607 [2021-01-26 17:29:36,511 INFO L226 Difference]: Without dead ends: 0 [2021-01-26 17:29:36,512 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:29:36,512 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 53 [2021-01-26 17:29:36,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:29:36,512 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-26 17:29:36,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-01-26 17:29:36,512 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-26 17:29:36,513 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-26 17:29:36,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-26 17:29:36,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 05:29:36 BasicIcfg [2021-01-26 17:29:36,520 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-26 17:29:36,524 INFO L168 Benchmark]: Toolchain (without parser) took 6415.78 ms. Allocated memory was 304.1 MB in the beginning and 434.1 MB in the end (delta: 130.0 MB). Free memory was 277.1 MB in the beginning and 302.9 MB in the end (delta: -25.7 MB). Peak memory consumption was 107.4 MB. Max. memory is 16.0 GB. [2021-01-26 17:29:36,525 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 304.1 MB. Free memory is still 273.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:29:36,533 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.49 ms. Allocated memory is still 304.1 MB. Free memory was 276.0 MB in the beginning and 277.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.0 GB. [2021-01-26 17:29:36,534 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.55 ms. Allocated memory is still 304.1 MB. Free memory was 277.4 MB in the beginning and 275.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:29:36,535 INFO L168 Benchmark]: Boogie Preprocessor took 28.39 ms. Allocated memory is still 304.1 MB. Free memory was 275.3 MB in the beginning and 274.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:29:36,535 INFO L168 Benchmark]: RCFGBuilder took 663.27 ms. Allocated memory is still 304.1 MB. Free memory was 274.2 MB in the beginning and 251.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:29:36,536 INFO L168 Benchmark]: TraceAbstraction took 4880.50 ms. Allocated memory was 304.1 MB in the beginning and 434.1 MB in the end (delta: 130.0 MB). Free memory was 250.1 MB in the beginning and 302.9 MB in the end (delta: -52.8 MB). Peak memory consumption was 78.3 MB. Max. memory is 16.0 GB. [2021-01-26 17:29:36,550 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 304.1 MB. Free memory is still 273.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 767.49 ms. Allocated memory is still 304.1 MB. Free memory was 276.0 MB in the beginning and 277.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 53.55 ms. Allocated memory is still 304.1 MB. Free memory was 277.4 MB in the beginning and 275.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.39 ms. Allocated memory is still 304.1 MB. Free memory was 275.3 MB in the beginning and 274.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 663.27 ms. Allocated memory is still 304.1 MB. Free memory was 274.2 MB in the beginning and 251.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4880.50 ms. Allocated memory was 304.1 MB in the beginning and 434.1 MB in the end (delta: 130.0 MB). Free memory was 250.1 MB in the beginning and 302.9 MB in the end (delta: -52.8 MB). Peak memory consumption was 78.3 MB. 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 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 615 SDtfs, 943 SDslu, 1995 SDs, 0 SdLazy, 278 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8448occurred 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, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 336 NumberOfCodeBlocks, 336 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 329 ConstructedInterpolants, 0 QuantifiedInterpolants, 43243 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...