/usr/bin/java -Xmx16000000000 -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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:13:52,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:13:52,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:13:52,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:13:52,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:13:52,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:13:52,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:13:52,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:13:52,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:13:52,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:13:52,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:13:52,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:13:52,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:13:52,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:13:52,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:13:52,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:13:52,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:13:52,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:13:52,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:13:52,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:13:52,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:13:52,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:13:52,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:13:52,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:13:52,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 22:13:52,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 22:13:52,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 22:13:52,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 22:13:52,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 22:13:52,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 22:13:52,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:13:52,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:13:52,122 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:13:52,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:13:52,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:13:52,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:13:52,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:13:52,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:13:52,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:13:52,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:13:52,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:13:52,134 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-SemanticLbe.epf [2020-10-15 22:13:52,155 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:13:52,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:13:52,157 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:13:52,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:13:52,157 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:13:52,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:13:52,158 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:13:52,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:13:52,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:13:52,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:13:52,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:13:52,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:13:52,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:13:52,159 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:13:52,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:13:52,159 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:13:52,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:13:52,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:13:52,160 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:13:52,160 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:13:52,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:13:52,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:13:52,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:13:52,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:13:52,161 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:13:52,161 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:13:52,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:13:52,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:13:52,162 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:13:52,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:13:52,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:13:52,473 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:13:52,475 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:13:52,476 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:13:52,476 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2020-10-15 22:13:52,538 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac5e7b516/3d99c15e5e9b47eb9194872fa4c97767/FLAGebdc64906 [2020-10-15 22:13:53,147 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:13:53,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2020-10-15 22:13:53,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac5e7b516/3d99c15e5e9b47eb9194872fa4c97767/FLAGebdc64906 [2020-10-15 22:13:53,444 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac5e7b516/3d99c15e5e9b47eb9194872fa4c97767 [2020-10-15 22:13:53,453 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:13:53,455 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:13:53,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:13:53,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:13:53,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:13:53,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:13:53" (1/1) ... [2020-10-15 22:13:53,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b1239ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:53, skipping insertion in model container [2020-10-15 22:13:53,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:13:53" (1/1) ... [2020-10-15 22:13:53,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:13:53,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:13:54,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:13:54,034 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:13:54,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:13:54,211 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:13:54,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:54 WrapperNode [2020-10-15 22:13:54,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:13:54,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:13:54,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:13:54,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:13:54,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:54" (1/1) ... [2020-10-15 22:13:54,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:54" (1/1) ... [2020-10-15 22:13:54,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:13:54,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:13:54,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:13:54,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:13:54,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:54" (1/1) ... [2020-10-15 22:13:54,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:54" (1/1) ... [2020-10-15 22:13:54,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:54" (1/1) ... [2020-10-15 22:13:54,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:54" (1/1) ... [2020-10-15 22:13:54,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:54" (1/1) ... [2020-10-15 22:13:54,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:54" (1/1) ... [2020-10-15 22:13:54,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:54" (1/1) ... [2020-10-15 22:13:54,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:13:54,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:13:54,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:13:54,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:13:54,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:54" (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 [2020-10-15 22:13:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:13:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:13:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:13:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:13:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:13:54,368 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:13:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:13:54,369 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:13:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 22:13:54,369 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 22:13:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:13:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:13:54,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:13:54,372 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 22:13:54,739 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:13:54,740 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 22:13:54,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:13:54 BoogieIcfgContainer [2020-10-15 22:13:54,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:13:54,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:13:54,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:13:54,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:13:54,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:13:53" (1/3) ... [2020-10-15 22:13:54,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fd2ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:13:54, skipping insertion in model container [2020-10-15 22:13:54,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:54" (2/3) ... [2020-10-15 22:13:54,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fd2ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:13:54, skipping insertion in model container [2020-10-15 22:13:54,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:13:54" (3/3) ... [2020-10-15 22:13:54,751 INFO L111 eAbstractionObserver]: Analyzing ICFG safe021_tso.oepc.i [2020-10-15 22:13:54,763 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:13:54,764 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:13:54,772 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:13:54,773 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:13:54,800 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,801 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,801 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,806 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,807 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,807 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,808 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,808 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,808 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,808 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,809 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,809 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,809 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,810 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,810 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,810 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,810 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,811 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,815 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,815 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,815 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,822 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,825 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,825 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:13:54,842 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 22:13:54,862 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:13:54,862 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:13:54,862 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:13:54,862 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:13:54,862 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:13:54,862 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:13:54,863 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:13:54,863 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:13:54,875 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:13:54,878 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-15 22:13:54,881 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-15 22:13:54,883 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-15 22:13:54,927 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-15 22:13:54,928 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:13:54,933 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-15 22:13:54,935 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 22:13:56,314 INFO L132 LiptonReduction]: Checked pairs total: 2334 [2020-10-15 22:13:56,315 INFO L134 LiptonReduction]: Total number of compositions: 56 [2020-10-15 22:13:56,321 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-15 22:13:56,349 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-15 22:13:56,351 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-15 22:13:56,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 22:13:56,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:56,360 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:56,360 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:56,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:56,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1626400852, now seen corresponding path program 1 times [2020-10-15 22:13:56,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:56,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915661533] [2020-10-15 22:13:56,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:56,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:56,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915661533] [2020-10-15 22:13:56,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:56,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:13:56,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849675689] [2020-10-15 22:13:56,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 22:13:56,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:56,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 22:13:56,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 22:13:56,575 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-15 22:13:56,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:56,609 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-15 22:13:56,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 22:13:56,611 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-15 22:13:56,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:56,629 INFO L225 Difference]: With dead ends: 362 [2020-10-15 22:13:56,629 INFO L226 Difference]: Without dead ends: 298 [2020-10-15 22:13:56,631 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 [2020-10-15 22:13:56,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-15 22:13:56,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-15 22:13:56,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-15 22:13:56,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-15 22:13:56,711 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-15 22:13:56,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:56,712 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-15 22:13:56,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 22:13:56,712 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-15 22:13:56,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:13:56,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:56,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:56,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:13:56,714 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:56,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:56,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1121187596, now seen corresponding path program 1 times [2020-10-15 22:13:56,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:56,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102188162] [2020-10-15 22:13:56,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:56,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:56,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102188162] [2020-10-15 22:13:56,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:56,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:13:56,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234201143] [2020-10-15 22:13:56,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:13:56,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:56,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:13:56,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:13:56,880 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-15 22:13:56,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:56,915 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-15 22:13:56,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:13:56,916 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 22:13:56,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:56,919 INFO L225 Difference]: With dead ends: 330 [2020-10-15 22:13:56,920 INFO L226 Difference]: Without dead ends: 266 [2020-10-15 22:13:56,921 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 [2020-10-15 22:13:56,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-15 22:13:56,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-15 22:13:56,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-15 22:13:56,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-15 22:13:56,952 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-15 22:13:56,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:56,953 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-15 22:13:56,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:13:56,953 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-15 22:13:56,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:13:56,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:56,959 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:56,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:13:56,960 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:56,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:56,960 INFO L82 PathProgramCache]: Analyzing trace with hash -397698604, now seen corresponding path program 1 times [2020-10-15 22:13:56,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:56,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956130770] [2020-10-15 22:13:56,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:56,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:57,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:57,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956130770] [2020-10-15 22:13:57,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:57,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:13:57,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636544673] [2020-10-15 22:13:57,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:13:57,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:57,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:13:57,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:57,041 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-10-15 22:13:57,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:57,108 INFO L93 Difference]: Finished difference Result 314 states and 856 transitions. [2020-10-15 22:13:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:13:57,108 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-15 22:13:57,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:57,110 INFO L225 Difference]: With dead ends: 314 [2020-10-15 22:13:57,111 INFO L226 Difference]: Without dead ends: 170 [2020-10-15 22:13:57,111 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 [2020-10-15 22:13:57,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-15 22:13:57,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-10-15 22:13:57,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-15 22:13:57,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 432 transitions. [2020-10-15 22:13:57,123 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 432 transitions. Word has length 10 [2020-10-15 22:13:57,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:57,123 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 432 transitions. [2020-10-15 22:13:57,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:13:57,124 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 432 transitions. [2020-10-15 22:13:57,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:13:57,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:57,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:57,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:13:57,126 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:57,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:57,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1820296279, now seen corresponding path program 1 times [2020-10-15 22:13:57,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:57,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181992770] [2020-10-15 22:13:57,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:57,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:57,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181992770] [2020-10-15 22:13:57,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:57,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:13:57,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712791281] [2020-10-15 22:13:57,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:13:57,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:57,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:13:57,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:13:57,203 INFO L87 Difference]: Start difference. First operand 170 states and 432 transitions. Second operand 4 states. [2020-10-15 22:13:57,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:57,250 INFO L93 Difference]: Finished difference Result 183 states and 423 transitions. [2020-10-15 22:13:57,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:13:57,251 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 22:13:57,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:57,252 INFO L225 Difference]: With dead ends: 183 [2020-10-15 22:13:57,253 INFO L226 Difference]: Without dead ends: 143 [2020-10-15 22:13:57,253 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:57,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-10-15 22:13:57,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2020-10-15 22:13:57,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-10-15 22:13:57,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 330 transitions. [2020-10-15 22:13:57,272 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 330 transitions. Word has length 12 [2020-10-15 22:13:57,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:57,272 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 330 transitions. [2020-10-15 22:13:57,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:13:57,272 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 330 transitions. [2020-10-15 22:13:57,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:13:57,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:57,274 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:57,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:13:57,274 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:57,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:57,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1114555336, now seen corresponding path program 1 times [2020-10-15 22:13:57,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:57,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528980538] [2020-10-15 22:13:57,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:57,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:57,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528980538] [2020-10-15 22:13:57,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:57,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:13:57,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022699980] [2020-10-15 22:13:57,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:13:57,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:57,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:13:57,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:57,368 INFO L87 Difference]: Start difference. First operand 143 states and 330 transitions. Second operand 5 states. [2020-10-15 22:13:57,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:57,405 INFO L93 Difference]: Finished difference Result 129 states and 271 transitions. [2020-10-15 22:13:57,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:13:57,406 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 22:13:57,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:57,407 INFO L225 Difference]: With dead ends: 129 [2020-10-15 22:13:57,407 INFO L226 Difference]: Without dead ends: 104 [2020-10-15 22:13:57,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:13:57,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-15 22:13:57,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-10-15 22:13:57,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-15 22:13:57,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 215 transitions. [2020-10-15 22:13:57,412 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 215 transitions. Word has length 13 [2020-10-15 22:13:57,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:57,413 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 215 transitions. [2020-10-15 22:13:57,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:13:57,413 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 215 transitions. [2020-10-15 22:13:57,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:13:57,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:57,414 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:57,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:13:57,414 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:57,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:57,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1420096236, now seen corresponding path program 1 times [2020-10-15 22:13:57,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:57,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051909530] [2020-10-15 22:13:57,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:57,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:57,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:57,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051909530] [2020-10-15 22:13:57,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:57,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:13:57,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882052548] [2020-10-15 22:13:57,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 22:13:57,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:57,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 22:13:57,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:13:57,480 INFO L87 Difference]: Start difference. First operand 104 states and 215 transitions. Second operand 6 states. [2020-10-15 22:13:57,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:57,526 INFO L93 Difference]: Finished difference Result 93 states and 191 transitions. [2020-10-15 22:13:57,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:13:57,527 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-15 22:13:57,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:57,528 INFO L225 Difference]: With dead ends: 93 [2020-10-15 22:13:57,528 INFO L226 Difference]: Without dead ends: 85 [2020-10-15 22:13:57,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:13:57,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-15 22:13:57,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-15 22:13:57,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-15 22:13:57,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-10-15 22:13:57,532 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 15 [2020-10-15 22:13:57,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:57,532 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-10-15 22:13:57,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 22:13:57,533 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-10-15 22:13:57,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 22:13:57,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:57,534 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:57,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 22:13:57,534 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:57,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:57,535 INFO L82 PathProgramCache]: Analyzing trace with hash -572692364, now seen corresponding path program 1 times [2020-10-15 22:13:57,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:57,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069800460] [2020-10-15 22:13:57,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:57,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:57,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069800460] [2020-10-15 22:13:57,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:57,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:13:57,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262284764] [2020-10-15 22:13:57,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:13:57,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:57,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:13:57,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:13:57,579 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 4 states. [2020-10-15 22:13:57,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:57,595 INFO L93 Difference]: Finished difference Result 117 states and 236 transitions. [2020-10-15 22:13:57,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:13:57,596 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-15 22:13:57,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:57,596 INFO L225 Difference]: With dead ends: 117 [2020-10-15 22:13:57,596 INFO L226 Difference]: Without dead ends: 55 [2020-10-15 22:13:57,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:57,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-15 22:13:57,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-15 22:13:57,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-15 22:13:57,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-15 22:13:57,599 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-10-15 22:13:57,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:57,600 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-15 22:13:57,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:13:57,600 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-15 22:13:57,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 22:13:57,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:13:57,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:13:57,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 22:13:57,601 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:13:57,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:13:57,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1123595488, now seen corresponding path program 2 times [2020-10-15 22:13:57,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:13:57,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987001729] [2020-10-15 22:13:57,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:13:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:13:57,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:13:57,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987001729] [2020-10-15 22:13:57,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:13:57,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:13:57,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406450421] [2020-10-15 22:13:57,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:13:57,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:13:57,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:13:57,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:13:57,662 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 5 states. [2020-10-15 22:13:57,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:13:57,682 INFO L93 Difference]: Finished difference Result 54 states and 98 transitions. [2020-10-15 22:13:57,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:13:57,682 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-15 22:13:57,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:13:57,683 INFO L225 Difference]: With dead ends: 54 [2020-10-15 22:13:57,683 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 22:13:57,683 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:13:57,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 22:13:57,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 22:13:57,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 22:13:57,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 22:13:57,684 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-15 22:13:57,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:13:57,684 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 22:13:57,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:13:57,685 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 22:13:57,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 22:13:57,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 22:13:57,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:13:57 BasicIcfg [2020-10-15 22:13:57,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:13:57,692 INFO L168 Benchmark]: Toolchain (without parser) took 4236.28 ms. Allocated memory was 252.7 MB in the beginning and 372.2 MB in the end (delta: 119.5 MB). Free memory was 207.2 MB in the beginning and 268.0 MB in the end (delta: -60.8 MB). Peak memory consumption was 58.7 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:57,692 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 252.7 MB. Free memory is still 229.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:13:57,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 756.96 ms. Allocated memory was 252.7 MB in the beginning and 317.2 MB in the end (delta: 64.5 MB). Free memory was 207.2 MB in the beginning and 268.1 MB in the end (delta: -60.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:57,694 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.21 ms. Allocated memory is still 317.2 MB. Free memory was 268.1 MB in the beginning and 265.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:57,695 INFO L168 Benchmark]: Boogie Preprocessor took 26.13 ms. Allocated memory is still 317.2 MB. Free memory was 265.6 MB in the beginning and 263.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:57,696 INFO L168 Benchmark]: RCFGBuilder took 441.38 ms. Allocated memory is still 317.2 MB. Free memory was 263.1 MB in the beginning and 241.2 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:57,697 INFO L168 Benchmark]: TraceAbstraction took 2945.05 ms. Allocated memory was 317.2 MB in the beginning and 372.2 MB in the end (delta: 55.1 MB). Free memory was 241.2 MB in the beginning and 268.0 MB in the end (delta: -26.8 MB). Peak memory consumption was 28.2 MB. Max. memory is 14.2 GB. [2020-10-15 22:13:57,701 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 252.7 MB. Free memory is still 229.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 756.96 ms. Allocated memory was 252.7 MB in the beginning and 317.2 MB in the end (delta: 64.5 MB). Free memory was 207.2 MB in the beginning and 268.1 MB in the end (delta: -60.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 61.21 ms. Allocated memory is still 317.2 MB. Free memory was 268.1 MB in the beginning and 265.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.13 ms. Allocated memory is still 317.2 MB. Free memory was 265.6 MB in the beginning and 263.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 441.38 ms. Allocated memory is still 317.2 MB. Free memory was 263.1 MB in the beginning and 241.2 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2945.05 ms. Allocated memory was 317.2 MB in the beginning and 372.2 MB in the end (delta: 55.1 MB). Free memory was 241.2 MB in the beginning and 268.0 MB in the end (delta: -26.8 MB). Peak memory consumption was 28.2 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 829 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 83 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 78 PlacesBefore, 32 PlacesAfterwards, 70 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 56 TotalNumberOfCompositions, 2334 MoverChecksTotal - PositiveResult [Line: 7]: 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 175 SDtfs, 173 SDslu, 270 SDs, 0 SdLazy, 104 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 2932 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...