/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:00:22,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:00:22,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:00:22,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:00:22,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:00:22,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:00:22,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:00:22,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:00:22,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:00:22,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:00:22,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:00:22,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:00:22,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:00:22,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:00:22,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:00:22,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:00:22,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:00:22,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:00:22,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:00:22,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:00:22,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:00:22,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:00:22,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:00:22,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:00:22,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 22:00:22,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 22:00:22,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 22:00:22,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 22:00:22,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 22:00:22,831 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 22:00:22,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:00:22,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:00:22,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:00:22,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:00:22,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:00:22,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:00:22,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:00:22,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:00:22,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:00:22,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:00:22,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:00:22,839 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-21 22:00:22,877 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:00:22,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:00:22,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:00:22,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:00:22,879 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:00:22,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:00:22,879 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:00:22,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:00:22,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:00:22,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:00:22,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:00:22,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:00:22,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:00:22,881 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:00:22,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:00:22,881 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:00:22,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:00:22,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:00:22,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:00:22,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:00:22,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:00:22,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:00:22,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:00:22,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 22:00:22,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:00:22,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:00:22,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:00:22,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:00:22,884 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 22:00:22,884 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 22:00:23,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:00:23,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:00:23,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:00:23,270 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:00:23,271 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:00:23,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc.i [2020-10-21 22:00:23,340 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dec844de/6ac3f58bc68447468da4a677c11e3aaf/FLAG2487f2d59 [2020-10-21 22:00:23,946 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:00:23,947 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc.i [2020-10-21 22:00:23,969 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dec844de/6ac3f58bc68447468da4a677c11e3aaf/FLAG2487f2d59 [2020-10-21 22:00:24,198 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dec844de/6ac3f58bc68447468da4a677c11e3aaf [2020-10-21 22:00:24,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:00:24,216 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:00:24,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:00:24,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:00:24,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:00:24,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:00:24" (1/1) ... [2020-10-21 22:00:24,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e7e8af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:24, skipping insertion in model container [2020-10-21 22:00:24,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:00:24" (1/1) ... [2020-10-21 22:00:24,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:00:24,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:00:24,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:00:24,778 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:00:24,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:00:24,956 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:00:24,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:24 WrapperNode [2020-10-21 22:00:24,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:00:24,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:00:24,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:00:24,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:00:24,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:24" (1/1) ... [2020-10-21 22:00:24,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:24" (1/1) ... [2020-10-21 22:00:25,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:00:25,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:00:25,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:00:25,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:00:25,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:24" (1/1) ... [2020-10-21 22:00:25,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:24" (1/1) ... [2020-10-21 22:00:25,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:24" (1/1) ... [2020-10-21 22:00:25,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:24" (1/1) ... [2020-10-21 22:00:25,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:24" (1/1) ... [2020-10-21 22:00:25,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:24" (1/1) ... [2020-10-21 22:00:25,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:24" (1/1) ... [2020-10-21 22:00:25,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:00:25,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:00:25,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:00:25,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:00:25,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:24" (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 [2020-10-21 22:00:25,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:00:25,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 22:00:25,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:00:25,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:00:25,111 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 22:00:25,111 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 22:00:25,112 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 22:00:25,112 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 22:00:25,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:00:25,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 22:00:25,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:00:25,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:00:25,114 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:00:25,493 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:00:25,493 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 22:00:25,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:00:25 BoogieIcfgContainer [2020-10-21 22:00:25,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:00:25,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:00:25,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:00:25,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:00:25,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:00:24" (1/3) ... [2020-10-21 22:00:25,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773002d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:00:25, skipping insertion in model container [2020-10-21 22:00:25,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:00:24" (2/3) ... [2020-10-21 22:00:25,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773002d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:00:25, skipping insertion in model container [2020-10-21 22:00:25,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:00:25" (3/3) ... [2020-10-21 22:00:25,505 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_pso.oepc.i [2020-10-21 22:00:25,514 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:00:25,515 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:00:25,523 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 22:00:25,524 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:00:25,556 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:25,556 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:25,557 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:25,557 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:25,557 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:25,558 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:25,558 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:25,559 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:25,559 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:25,559 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:25,559 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:25,560 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:25,566 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:25,567 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:25,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:25,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:25,581 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:25,581 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:25,582 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:25,582 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:00:25,586 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 22:00:25,598 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-21 22:00:25,618 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:00:25,618 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:00:25,618 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:00:25,619 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:00:25,619 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:00:25,619 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:00:25,619 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:00:25,619 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:00:25,632 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:00:25,634 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 140 flow [2020-10-21 22:00:25,637 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 140 flow [2020-10-21 22:00:25,638 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 140 flow [2020-10-21 22:00:25,688 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2020-10-21 22:00:25,689 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 22:00:25,694 INFO L80 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-10-21 22:00:25,696 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-10-21 22:00:27,085 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-21 22:00:27,402 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-21 22:00:27,520 INFO L131 LiptonReduction]: Checked pairs total: 1892 [2020-10-21 22:00:27,521 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-10-21 22:00:27,528 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-10-21 22:00:27,542 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-10-21 22:00:27,544 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-10-21 22:00:27,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 22:00:27,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:00:27,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-21 22:00:27,554 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:00:27,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:00:27,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1281927427, now seen corresponding path program 1 times [2020-10-21 22:00:27,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:00:27,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405561419] [2020-10-21 22:00:27,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:00:27,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:00:27,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:00:27,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405561419] [2020-10-21 22:00:27,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:00:27,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:00:27,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518869339] [2020-10-21 22:00:27,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 22:00:27,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:00:27,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 22:00:27,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 22:00:27,781 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-10-21 22:00:27,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:00:27,797 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-10-21 22:00:27,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 22:00:27,798 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-10-21 22:00:27,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:00:27,809 INFO L225 Difference]: With dead ends: 90 [2020-10-21 22:00:27,809 INFO L226 Difference]: Without dead ends: 74 [2020-10-21 22:00:27,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 22:00:27,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-21 22:00:27,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-21 22:00:27,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-21 22:00:27,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-10-21 22:00:27,852 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-10-21 22:00:27,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:00:27,853 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-10-21 22:00:27,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 22:00:27,853 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-10-21 22:00:27,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-21 22:00:27,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:00:27,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:00:27,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:00:27,855 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:00:27,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:00:27,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1085050971, now seen corresponding path program 1 times [2020-10-21 22:00:27,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:00:27,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706074609] [2020-10-21 22:00:27,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:00:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:00:27,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:00:27,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706074609] [2020-10-21 22:00:27,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:00:27,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:00:27,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153465777] [2020-10-21 22:00:27,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:00:27,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:00:27,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:00:27,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:00:27,999 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2020-10-21 22:00:28,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:00:28,060 INFO L93 Difference]: Finished difference Result 82 states and 166 transitions. [2020-10-21 22:00:28,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:00:28,062 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-21 22:00:28,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:00:28,064 INFO L225 Difference]: With dead ends: 82 [2020-10-21 22:00:28,065 INFO L226 Difference]: Without dead ends: 66 [2020-10-21 22:00:28,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:00:28,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-21 22:00:28,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-21 22:00:28,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-21 22:00:28,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 138 transitions. [2020-10-21 22:00:28,083 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 138 transitions. Word has length 7 [2020-10-21 22:00:28,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:00:28,083 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 138 transitions. [2020-10-21 22:00:28,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:00:28,083 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 138 transitions. [2020-10-21 22:00:28,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:00:28,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:00:28,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:00:28,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:00:28,086 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:00:28,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:00:28,086 INFO L82 PathProgramCache]: Analyzing trace with hash 722349434, now seen corresponding path program 1 times [2020-10-21 22:00:28,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:00:28,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806483414] [2020-10-21 22:00:28,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:00:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:00:28,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:00:28,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806483414] [2020-10-21 22:00:28,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:00:28,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:00:28,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113376024] [2020-10-21 22:00:28,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:00:28,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:00:28,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:00:28,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:00:28,180 INFO L87 Difference]: Start difference. First operand 66 states and 138 transitions. Second operand 5 states. [2020-10-21 22:00:28,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:00:28,238 INFO L93 Difference]: Finished difference Result 78 states and 155 transitions. [2020-10-21 22:00:28,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 22:00:28,243 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-10-21 22:00:28,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:00:28,244 INFO L225 Difference]: With dead ends: 78 [2020-10-21 22:00:28,245 INFO L226 Difference]: Without dead ends: 42 [2020-10-21 22:00:28,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:00:28,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-21 22:00:28,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-21 22:00:28,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-21 22:00:28,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 76 transitions. [2020-10-21 22:00:28,252 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 76 transitions. Word has length 8 [2020-10-21 22:00:28,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:00:28,254 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 76 transitions. [2020-10-21 22:00:28,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:00:28,254 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 76 transitions. [2020-10-21 22:00:28,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 22:00:28,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:00:28,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:00:28,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:00:28,256 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:00:28,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:00:28,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1631439828, now seen corresponding path program 1 times [2020-10-21 22:00:28,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:00:28,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763682059] [2020-10-21 22:00:28,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:00:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:00:28,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:00:28,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763682059] [2020-10-21 22:00:28,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:00:28,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 22:00:28,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944709144] [2020-10-21 22:00:28,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 22:00:28,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:00:28,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 22:00:28,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-21 22:00:28,409 INFO L87 Difference]: Start difference. First operand 42 states and 76 transitions. Second operand 6 states. [2020-10-21 22:00:28,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:00:28,520 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2020-10-21 22:00:28,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-21 22:00:28,520 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-21 22:00:28,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:00:28,521 INFO L225 Difference]: With dead ends: 36 [2020-10-21 22:00:28,521 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 22:00:28,521 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-21 22:00:28,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 22:00:28,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 22:00:28,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 22:00:28,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 22:00:28,522 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-10-21 22:00:28,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:00:28,523 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 22:00:28,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 22:00:28,523 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 22:00:28,523 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 22:00:28,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:00:28,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:00:28 BasicIcfg [2020-10-21 22:00:28,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:00:28,529 INFO L168 Benchmark]: Toolchain (without parser) took 4319.19 ms. Allocated memory was 139.5 MB in the beginning and 249.0 MB in the end (delta: 109.6 MB). Free memory was 100.7 MB in the beginning and 209.0 MB in the end (delta: -108.2 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-21 22:00:28,530 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 22:00:28,531 INFO L168 Benchmark]: CACSL2BoogieTranslator took 739.69 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 99.7 MB in the beginning and 156.5 MB in the end (delta: -56.8 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-10-21 22:00:28,532 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.12 ms. Allocated memory is still 202.4 MB. Free memory was 156.5 MB in the beginning and 154.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:00:28,533 INFO L168 Benchmark]: Boogie Preprocessor took 27.07 ms. Allocated memory is still 202.4 MB. Free memory was 154.5 MB in the beginning and 153.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-21 22:00:28,534 INFO L168 Benchmark]: RCFGBuilder took 458.67 ms. Allocated memory is still 202.4 MB. Free memory was 153.1 MB in the beginning and 131.3 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-10-21 22:00:28,535 INFO L168 Benchmark]: TraceAbstraction took 3030.04 ms. Allocated memory was 202.4 MB in the beginning and 249.0 MB in the end (delta: 46.7 MB). Free memory was 130.7 MB in the beginning and 209.0 MB in the end (delta: -78.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-21 22:00:28,539 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 739.69 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 99.7 MB in the beginning and 156.5 MB in the end (delta: -56.8 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.12 ms. Allocated memory is still 202.4 MB. Free memory was 156.5 MB in the beginning and 154.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.07 ms. Allocated memory is still 202.4 MB. Free memory was 154.5 MB in the beginning and 153.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 458.67 ms. Allocated memory is still 202.4 MB. Free memory was 153.1 MB in the beginning and 131.3 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3030.04 ms. Allocated memory was 202.4 MB in the beginning and 249.0 MB in the end (delta: 46.7 MB). Free memory was 130.7 MB in the beginning and 209.0 MB in the end (delta: -78.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 543 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 22 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 43 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.8s, 69 PlacesBefore, 23 PlacesAfterwards, 65 TransitionsBefore, 17 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 1892 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 56 SDtfs, 67 SDslu, 66 SDs, 0 SdLazy, 44 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 916 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...