/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-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:10:24,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:10:24,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:10:24,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:10:24,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:10:24,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:10:24,728 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:10:24,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:10:24,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:10:24,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:10:24,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:10:24,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:10:24,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:10:24,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:10:24,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:10:24,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:10:24,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:10:24,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:10:24,747 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:10:24,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:10:24,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:10:24,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:10:24,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:10:24,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:10:24,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 21:10:24,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:10:24,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:10:24,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:10:24,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:10:24,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:10:24,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:10:24,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:10:24,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:10:24,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:10:24,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:10:24,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:10:24,794 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-keepdead.epf [2021-01-20 21:10:24,855 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:10:24,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:10:24,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:10:24,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:10:24,858 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:10:24,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:10:24,858 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:10:24,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:10:24,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:10:24,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:10:24,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:10:24,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:10:24,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:10:24,862 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:10:24,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:10:24,862 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:10:24,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:10:24,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:10:24,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:10:24,863 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:10:24,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:10:24,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:10:24,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:10:24,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:10:24,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:10:24,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:10:24,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:10:24,865 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:10:24,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:10:24,866 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:10:24,866 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:10:24,866 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:10:25,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:10:25,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:10:25,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:10:25,352 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:10:25,353 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:10:25,354 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2021-01-20 21:10:25,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4f6a9bc2/4b5e54f6c21a4ef58ba1fe743af2a9e2/FLAGaef206101 [2021-01-20 21:10:26,082 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:10:26,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2021-01-20 21:10:26,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4f6a9bc2/4b5e54f6c21a4ef58ba1fe743af2a9e2/FLAGaef206101 [2021-01-20 21:10:26,385 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4f6a9bc2/4b5e54f6c21a4ef58ba1fe743af2a9e2 [2021-01-20 21:10:26,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:10:26,394 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:10:26,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:10:26,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:10:26,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:10:26,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:10:26" (1/1) ... [2021-01-20 21:10:26,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@667e78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:10:26, skipping insertion in model container [2021-01-20 21:10:26,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:10:26" (1/1) ... [2021-01-20 21:10:26,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:10:26,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:10:27,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:10:27,026 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:10:27,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:10:27,221 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:10:27,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:10:27 WrapperNode [2021-01-20 21:10:27,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:10:27,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:10:27,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:10:27,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:10:27,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:10:27" (1/1) ... [2021-01-20 21:10:27,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:10:27" (1/1) ... [2021-01-20 21:10:27,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:10:27,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:10:27,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:10:27,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:10:27,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:10:27" (1/1) ... [2021-01-20 21:10:27,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:10:27" (1/1) ... [2021-01-20 21:10:27,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:10:27" (1/1) ... [2021-01-20 21:10:27,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:10:27" (1/1) ... [2021-01-20 21:10:27,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:10:27" (1/1) ... [2021-01-20 21:10:27,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:10:27" (1/1) ... [2021-01-20 21:10:27,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:10:27" (1/1) ... [2021-01-20 21:10:27,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:10:27,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:10:27,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:10:27,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:10:27,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:10:27" (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 21:10:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:10:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:10:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:10:27,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:10:27,472 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:10:27,472 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:10:27,472 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:10:27,472 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:10:27,472 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 21:10:27,473 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 21:10:27,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:10:27,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:10:27,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:10:27,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:10:27,475 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 21:10:27,879 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:10:27,879 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 21:10:27,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:10:27 BoogieIcfgContainer [2021-01-20 21:10:27,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:10:27,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:10:27,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:10:27,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:10:27,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:10:26" (1/3) ... [2021-01-20 21:10:27,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5222a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:10:27, skipping insertion in model container [2021-01-20 21:10:27,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:10:27" (2/3) ... [2021-01-20 21:10:27,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5222a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:10:27, skipping insertion in model container [2021-01-20 21:10:27,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:10:27" (3/3) ... [2021-01-20 21:10:27,891 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_tso.oepc.i [2021-01-20 21:10:27,908 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:10:27,908 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:10:27,911 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 21:10:27,912 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:10:27,943 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,944 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,944 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,944 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,944 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,945 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,945 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,945 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,945 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,946 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,946 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,946 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,947 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,947 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,947 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,947 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,947 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,947 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,948 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,948 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,948 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,948 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,949 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,949 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,949 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,949 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,949 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,950 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,950 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,950 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,950 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,951 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,951 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,951 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,951 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,953 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,954 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,954 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,954 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,965 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,965 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,966 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,966 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,968 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,968 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,969 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,969 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:10:27,971 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:10:27,984 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 21:10:28,007 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:10:28,007 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:10:28,007 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:10:28,007 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:10:28,007 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:10:28,007 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:10:28,008 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:10:28,008 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:10:28,019 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2021-01-20 21:10:29,323 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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 21:10:29,384 INFO L276 IsEmpty]: Start isEmpty. Operand has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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 21:10:29,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-01-20 21:10:29,431 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:10:29,433 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] [2021-01-20 21:10:29,433 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:10:29,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:10:29,442 INFO L82 PathProgramCache]: Analyzing trace with hash 188737205, now seen corresponding path program 1 times [2021-01-20 21:10:29,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:10:29,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290498054] [2021-01-20 21:10:29,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:10:29,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:10:30,006 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 21:10:30,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290498054] [2021-01-20 21:10:30,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:10:30,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:10:30,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418789436] [2021-01-20 21:10:30,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:10:30,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:10:30,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:10:30,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:10:30,068 INFO L87 Difference]: Start difference. First operand has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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 21:10:30,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:10:30,410 INFO L93 Difference]: Finished difference Result 12201 states and 42465 transitions. [2021-01-20 21:10:30,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:10:30,413 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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 43 [2021-01-20 21:10:30,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:10:30,415 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:10:30,415 INFO L78 Accepts]: Start accepts. Automaton has 12201 states and 42465 transitions. Word has length 43 [2021-01-20 21:10:30,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:10:30,417 INFO L481 AbstractCegarLoop]: Abstraction has 12201 states and 42465 transitions. [2021-01-20 21:10:30,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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 21:10:30,418 INFO L276 IsEmpty]: Start isEmpty. Operand 12201 states and 42465 transitions. [2021-01-20 21:10:30,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-20 21:10:30,434 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:10:30,434 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] [2021-01-20 21:10:30,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:10:30,435 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:10:30,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:10:30,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1390475924, now seen corresponding path program 1 times [2021-01-20 21:10:30,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:10:30,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565479135] [2021-01-20 21:10:30,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:10:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:10:30,671 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 21:10:30,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565479135] [2021-01-20 21:10:30,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:10:30,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:10:30,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433333807] [2021-01-20 21:10:30,674 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:10:30,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:10:30,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:10:30,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:10:30,678 INFO L87 Difference]: Start difference. First operand 12201 states and 42465 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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 21:10:31,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:10:31,300 INFO L93 Difference]: Finished difference Result 16821 states and 57821 transitions. [2021-01-20 21:10:31,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:10:31,301 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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 45 [2021-01-20 21:10:31,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:10:31,304 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:10:31,304 INFO L78 Accepts]: Start accepts. Automaton has 16821 states and 57821 transitions. Word has length 45 [2021-01-20 21:10:31,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:10:31,305 INFO L481 AbstractCegarLoop]: Abstraction has 16821 states and 57821 transitions. [2021-01-20 21:10:31,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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 21:10:31,306 INFO L276 IsEmpty]: Start isEmpty. Operand 16821 states and 57821 transitions. [2021-01-20 21:10:31,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-20 21:10:31,404 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:10:31,404 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] [2021-01-20 21:10:31,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:10:31,404 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:10:31,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:10:31,408 INFO L82 PathProgramCache]: Analyzing trace with hash -983473269, now seen corresponding path program 1 times [2021-01-20 21:10:31,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:10:31,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991870069] [2021-01-20 21:10:31,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:10:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:10:31,649 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 21:10:31,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991870069] [2021-01-20 21:10:31,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:10:31,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:10:31,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935043101] [2021-01-20 21:10:31,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:10:31,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:10:31,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:10:31,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:10:31,652 INFO L87 Difference]: Start difference. First operand 16821 states and 57821 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 21:10:32,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:10:32,203 INFO L93 Difference]: Finished difference Result 28421 states and 96001 transitions. [2021-01-20 21:10:32,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:10:32,203 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2021-01-20 21:10:32,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:10:32,204 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:10:32,204 INFO L78 Accepts]: Start accepts. Automaton has 28421 states and 96001 transitions. Word has length 48 [2021-01-20 21:10:32,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:10:32,205 INFO L481 AbstractCegarLoop]: Abstraction has 28421 states and 96001 transitions. [2021-01-20 21:10:32,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 21:10:32,205 INFO L276 IsEmpty]: Start isEmpty. Operand 28421 states and 96001 transitions. [2021-01-20 21:10:32,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 21:10:32,262 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:10:32,262 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] [2021-01-20 21:10:32,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:10:32,262 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:10:32,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:10:32,263 INFO L82 PathProgramCache]: Analyzing trace with hash -514850718, now seen corresponding path program 1 times [2021-01-20 21:10:32,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:10:32,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835741777] [2021-01-20 21:10:32,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:10:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:10:32,472 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 21:10:32,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835741777] [2021-01-20 21:10:32,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:10:32,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:10:32,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375734899] [2021-01-20 21:10:32,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:10:32,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:10:32,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:10:32,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:10:32,475 INFO L87 Difference]: Start difference. First operand 28421 states and 96001 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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) [2021-01-20 21:10:33,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:10:33,019 INFO L93 Difference]: Finished difference Result 44301 states and 148115 transitions. [2021-01-20 21:10:33,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:10:33,020 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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 [2021-01-20 21:10:33,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:10:33,024 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:10:33,024 INFO L78 Accepts]: Start accepts. Automaton has 44301 states and 148115 transitions. Word has length 51 [2021-01-20 21:10:33,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:10:33,025 INFO L481 AbstractCegarLoop]: Abstraction has 44301 states and 148115 transitions. [2021-01-20 21:10:33,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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) [2021-01-20 21:10:33,025 INFO L276 IsEmpty]: Start isEmpty. Operand 44301 states and 148115 transitions. [2021-01-20 21:10:33,257 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:10:33,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:10:33,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:10:33 BasicIcfg [2021-01-20 21:10:33,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:10:33,265 INFO L168 Benchmark]: Toolchain (without parser) took 6870.87 ms. Allocated memory was 302.0 MB in the beginning and 1.2 GB in the end (delta: 891.3 MB). Free memory was 277.4 MB in the beginning and 951.1 MB in the end (delta: -673.7 MB). Peak memory consumption was 269.4 MB. Max. memory is 16.0 GB. [2021-01-20 21:10:33,266 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 271.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:10:33,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 823.56 ms. Allocated memory is still 302.0 MB. Free memory was 277.2 MB in the beginning and 246.6 MB in the end (delta: 30.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-01-20 21:10:33,267 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.69 ms. Allocated memory is still 302.0 MB. Free memory was 246.6 MB in the beginning and 244.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:10:33,268 INFO L168 Benchmark]: Boogie Preprocessor took 56.36 ms. Allocated memory is still 302.0 MB. Free memory was 244.6 MB in the beginning and 243.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:10:33,269 INFO L168 Benchmark]: RCFGBuilder took 519.82 ms. Allocated memory is still 302.0 MB. Free memory was 243.2 MB in the beginning and 262.7 MB in the end (delta: -19.5 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. [2021-01-20 21:10:33,270 INFO L168 Benchmark]: TraceAbstraction took 5378.57 ms. Allocated memory was 302.0 MB in the beginning and 1.2 GB in the end (delta: 891.3 MB). Free memory was 262.7 MB in the beginning and 951.1 MB in the end (delta: -688.4 MB). Peak memory consumption was 252.2 MB. Max. memory is 16.0 GB. [2021-01-20 21:10:33,274 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 302.0 MB. Free memory is still 271.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 823.56 ms. Allocated memory is still 302.0 MB. Free memory was 277.2 MB in the beginning and 246.6 MB in the end (delta: 30.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 80.69 ms. Allocated memory is still 302.0 MB. Free memory was 246.6 MB in the beginning and 244.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 56.36 ms. Allocated memory is still 302.0 MB. Free memory was 244.6 MB in the beginning and 243.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 519.82 ms. Allocated memory is still 302.0 MB. Free memory was 243.2 MB in the beginning and 262.7 MB in the end (delta: -19.5 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5378.57 ms. Allocated memory was 302.0 MB in the beginning and 1.2 GB in the end (delta: 891.3 MB). Free memory was 262.7 MB in the beginning and 951.1 MB in the end (delta: -688.4 MB). Peak memory consumption was 252.2 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, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 472 SDtfs, 1170 SDslu, 1715 SDs, 0 SdLazy, 161 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44301occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 183 ConstructedInterpolants, 0 QuantifiedInterpolants, 23913 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...