/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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:14:30,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:14:30,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:14:30,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:14:30,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:14:30,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:14:30,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:14:30,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:14:30,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:14:30,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:14:30,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:14:30,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:14:30,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:14:30,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:14:30,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:14:30,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:14:30,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:14:30,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:14:30,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:14:30,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:14:30,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:14:30,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:14:30,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:14:30,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:14:30,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 02:14:30,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 02:14:30,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 02:14:30,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 02:14:30,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 02:14:30,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 02:14:30,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:14:30,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:14:30,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:14:30,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:14:30,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:14:30,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:14:30,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:14:30,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:14:30,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:14:30,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:14:30,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:14:30,132 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-10-22 02:14:30,157 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:14:30,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:14:30,162 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:14:30,162 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:14:30,162 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:14:30,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:14:30,163 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:14:30,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:14:30,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:14:30,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:14:30,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:14:30,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:14:30,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:14:30,164 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:14:30,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:14:30,164 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:14:30,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:14:30,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:14:30,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:14:30,165 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:14:30,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:14:30,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:14:30,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:14:30,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:14:30,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:14:30,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:14:30,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:14:30,167 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:14:30,167 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:14:30,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:14:30,168 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:14:30,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:14:30,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:14:30,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:14:30,544 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:14:30,544 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:14:30,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2020-10-22 02:14:30,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82d988cb9/e90b311b36ea4a6589765aa52fa1b27d/FLAGaf0854baf [2020-10-22 02:14:31,168 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:14:31,169 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2020-10-22 02:14:31,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82d988cb9/e90b311b36ea4a6589765aa52fa1b27d/FLAGaf0854baf [2020-10-22 02:14:31,429 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82d988cb9/e90b311b36ea4a6589765aa52fa1b27d [2020-10-22 02:14:31,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:14:31,446 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:14:31,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:14:31,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:14:31,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:14:31,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:14:31" (1/1) ... [2020-10-22 02:14:31,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f5035f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:31, skipping insertion in model container [2020-10-22 02:14:31,459 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:14:31" (1/1) ... [2020-10-22 02:14:31,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:14:31,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:14:32,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:14:32,100 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:14:32,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:14:32,294 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:14:32,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:32 WrapperNode [2020-10-22 02:14:32,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:14:32,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:14:32,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:14:32,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:14:32,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:32" (1/1) ... [2020-10-22 02:14:32,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:32" (1/1) ... [2020-10-22 02:14:32,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:14:32,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:14:32,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:14:32,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:14:32,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:32" (1/1) ... [2020-10-22 02:14:32,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:32" (1/1) ... [2020-10-22 02:14:32,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:32" (1/1) ... [2020-10-22 02:14:32,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:32" (1/1) ... [2020-10-22 02:14:32,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:32" (1/1) ... [2020-10-22 02:14:32,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:32" (1/1) ... [2020-10-22 02:14:32,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:32" (1/1) ... [2020-10-22 02:14:32,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:14:32,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:14:32,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:14:32,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:14:32,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:32" (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 [2020-10-22 02:14:32,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:14:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:14:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:14:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:14:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:14:32,540 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:14:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:14:32,541 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:14:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 02:14:32,541 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 02:14:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:14:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:14:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:14:32,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:14:32,544 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:14:32,907 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:14:32,907 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:14:32,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:14:32 BoogieIcfgContainer [2020-10-22 02:14:32,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:14:32,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:14:32,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:14:32,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:14:32,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:14:31" (1/3) ... [2020-10-22 02:14:32,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3c6328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:14:32, skipping insertion in model container [2020-10-22 02:14:32,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:32" (2/3) ... [2020-10-22 02:14:32,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3c6328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:14:32, skipping insertion in model container [2020-10-22 02:14:32,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:14:32" (3/3) ... [2020-10-22 02:14:32,919 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_tso.opt.i [2020-10-22 02:14:32,932 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:14:32,932 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:14:32,941 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:14:32,942 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:14:32,972 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,972 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,972 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,973 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,973 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,973 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,974 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,974 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,974 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,975 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,975 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,975 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,976 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,976 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,976 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,976 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,977 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,977 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,981 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,981 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,981 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,982 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,990 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,990 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,991 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,995 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,995 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,995 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,995 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:32,997 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:14:33,008 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 02:14:33,028 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:14:33,029 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:14:33,029 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:14:33,029 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:14:33,029 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:14:33,029 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:14:33,030 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:14:33,030 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:14:33,044 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:14:33,044 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-22 02:14:33,046 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-22 02:14:33,048 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-10-22 02:14:33,097 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-10-22 02:14:33,097 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:14:33,103 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-22 02:14:33,106 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-22 02:14:35,114 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-10-22 02:14:35,224 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-22 02:14:35,247 INFO L131 LiptonReduction]: Checked pairs total: 3321 [2020-10-22 02:14:35,247 INFO L133 LiptonReduction]: Total number of compositions: 75 [2020-10-22 02:14:35,255 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-22 02:14:35,285 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-22 02:14:35,288 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-22 02:14:35,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 02:14:35,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:14:35,298 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:14:35,299 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:14:35,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:14:35,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1248499387, now seen corresponding path program 1 times [2020-10-22 02:14:35,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:14:35,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579682296] [2020-10-22 02:14:35,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:14:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:14:35,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:14:35,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579682296] [2020-10-22 02:14:35,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:14:35,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:14:35,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [802141498] [2020-10-22 02:14:35,567 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:14:35,569 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:14:35,585 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 02:14:35,585 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:14:35,590 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:14:35,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:14:35,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:14:35,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:14:35,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:14:35,604 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-22 02:14:35,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:14:35,651 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-10-22 02:14:35,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:14:35,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-22 02:14:35,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:14:35,673 INFO L225 Difference]: With dead ends: 290 [2020-10-22 02:14:35,673 INFO L226 Difference]: Without dead ends: 226 [2020-10-22 02:14:35,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:14:35,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-22 02:14:35,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-22 02:14:35,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-22 02:14:35,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-10-22 02:14:35,748 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-10-22 02:14:35,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:14:35,752 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-10-22 02:14:35,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:14:35,753 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-10-22 02:14:35,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 02:14:35,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:14:35,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:14:35,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:14:35,758 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:14:35,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:14:35,759 INFO L82 PathProgramCache]: Analyzing trace with hash -219086654, now seen corresponding path program 1 times [2020-10-22 02:14:35,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:14:35,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035736647] [2020-10-22 02:14:35,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:14:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:14:35,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:14:35,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035736647] [2020-10-22 02:14:35,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:14:35,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:14:35,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1061630652] [2020-10-22 02:14:35,846 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:14:35,847 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:14:35,850 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions. [2020-10-22 02:14:35,850 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:14:35,933 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:14:35,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:14:35,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:14:35,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:14:35,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:14:35,936 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-10-22 02:14:35,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:14:35,946 INFO L93 Difference]: Finished difference Result 214 states and 585 transitions. [2020-10-22 02:14:35,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:14:35,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-22 02:14:35,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:14:35,950 INFO L225 Difference]: With dead ends: 214 [2020-10-22 02:14:35,950 INFO L226 Difference]: Without dead ends: 214 [2020-10-22 02:14:35,951 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:14:35,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-22 02:14:35,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-10-22 02:14:35,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-10-22 02:14:35,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 585 transitions. [2020-10-22 02:14:35,976 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 585 transitions. Word has length 9 [2020-10-22 02:14:35,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:14:35,976 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 585 transitions. [2020-10-22 02:14:35,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:14:35,977 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 585 transitions. [2020-10-22 02:14:35,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 02:14:35,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:14:35,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:14:35,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:14:35,979 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:14:35,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:14:35,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1798247302, now seen corresponding path program 1 times [2020-10-22 02:14:35,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:14:35,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932986152] [2020-10-22 02:14:35,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:14:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:14:36,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:14:36,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932986152] [2020-10-22 02:14:36,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:14:36,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:14:36,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1851589860] [2020-10-22 02:14:36,045 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:14:36,046 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:14:36,049 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 27 transitions. [2020-10-22 02:14:36,049 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:14:36,194 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:14:36,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:14:36,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:14:36,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:14:36,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:14:36,195 INFO L87 Difference]: Start difference. First operand 214 states and 585 transitions. Second operand 4 states. [2020-10-22 02:14:36,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:14:36,220 INFO L93 Difference]: Finished difference Result 240 states and 627 transitions. [2020-10-22 02:14:36,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:14:36,221 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-22 02:14:36,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:14:36,223 INFO L225 Difference]: With dead ends: 240 [2020-10-22 02:14:36,223 INFO L226 Difference]: Without dead ends: 144 [2020-10-22 02:14:36,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:14:36,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-22 02:14:36,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-10-22 02:14:36,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-22 02:14:36,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 355 transitions. [2020-10-22 02:14:36,236 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 355 transitions. Word has length 10 [2020-10-22 02:14:36,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:14:36,237 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 355 transitions. [2020-10-22 02:14:36,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:14:36,237 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 355 transitions. [2020-10-22 02:14:36,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 02:14:36,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:14:36,239 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:14:36,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:14:36,240 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:14:36,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:14:36,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1306895020, now seen corresponding path program 1 times [2020-10-22 02:14:36,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:14:36,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372812401] [2020-10-22 02:14:36,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:14:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:14:36,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:14:36,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372812401] [2020-10-22 02:14:36,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:14:36,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:14:36,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1128506477] [2020-10-22 02:14:36,338 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:14:36,340 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:14:36,344 INFO L252 McrAutomatonBuilder]: Finished intersection with 35 states and 63 transitions. [2020-10-22 02:14:36,344 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:14:36,372 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:14:36,428 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:14:36,455 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:14:36,538 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:14:36,806 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2612#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-22 02:14:36,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:14:36,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:14:36,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:14:36,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:14:36,809 INFO L87 Difference]: Start difference. First operand 144 states and 355 transitions. Second operand 5 states. [2020-10-22 02:14:36,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:14:36,887 INFO L93 Difference]: Finished difference Result 137 states and 312 transitions. [2020-10-22 02:14:36,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 02:14:36,888 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-22 02:14:36,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:14:36,890 INFO L225 Difference]: With dead ends: 137 [2020-10-22 02:14:36,890 INFO L226 Difference]: Without dead ends: 97 [2020-10-22 02:14:36,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:14:36,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-22 02:14:36,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-10-22 02:14:36,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-22 02:14:36,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-10-22 02:14:36,897 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 12 [2020-10-22 02:14:36,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:14:36,898 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-10-22 02:14:36,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:14:36,898 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-10-22 02:14:36,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:14:36,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:14:36,899 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:14:36,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:14:36,900 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:14:36,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:14:36,900 INFO L82 PathProgramCache]: Analyzing trace with hash 111718158, now seen corresponding path program 1 times [2020-10-22 02:14:36,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:14:36,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583144830] [2020-10-22 02:14:36,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:14:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:14:36,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:14:36,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583144830] [2020-10-22 02:14:36,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:14:36,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:14:36,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [852235802] [2020-10-22 02:14:36,970 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:14:36,974 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:14:36,976 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 22 transitions. [2020-10-22 02:14:36,976 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:14:36,990 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:14:36,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:14:36,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:14:36,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:14:36,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:14:36,992 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 3 states. [2020-10-22 02:14:37,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:14:37,002 INFO L93 Difference]: Finished difference Result 115 states and 230 transitions. [2020-10-22 02:14:37,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:14:37,003 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-22 02:14:37,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:14:37,004 INFO L225 Difference]: With dead ends: 115 [2020-10-22 02:14:37,004 INFO L226 Difference]: Without dead ends: 98 [2020-10-22 02:14:37,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:14:37,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-22 02:14:37,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2020-10-22 02:14:37,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-22 02:14:37,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 193 transitions. [2020-10-22 02:14:37,014 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 193 transitions. Word has length 14 [2020-10-22 02:14:37,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:14:37,014 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 193 transitions. [2020-10-22 02:14:37,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:14:37,014 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 193 transitions. [2020-10-22 02:14:37,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-22 02:14:37,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:14:37,016 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:14:37,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:14:37,016 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:14:37,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:14:37,017 INFO L82 PathProgramCache]: Analyzing trace with hash 567564355, now seen corresponding path program 1 times [2020-10-22 02:14:37,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:14:37,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711690164] [2020-10-22 02:14:37,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:14:37,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:14:37,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:14:37,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711690164] [2020-10-22 02:14:37,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:14:37,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:14:37,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [534815787] [2020-10-22 02:14:37,132 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:14:37,134 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:14:37,145 INFO L252 McrAutomatonBuilder]: Finished intersection with 57 states and 102 transitions. [2020-10-22 02:14:37,145 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:14:37,499 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3264#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 02:14:37,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 02:14:37,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:14:37,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 02:14:37,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:14:37,501 INFO L87 Difference]: Start difference. First operand 96 states and 193 transitions. Second operand 7 states. [2020-10-22 02:14:37,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:14:37,574 INFO L93 Difference]: Finished difference Result 92 states and 183 transitions. [2020-10-22 02:14:37,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 02:14:37,574 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-22 02:14:37,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:14:37,575 INFO L225 Difference]: With dead ends: 92 [2020-10-22 02:14:37,575 INFO L226 Difference]: Without dead ends: 36 [2020-10-22 02:14:37,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:14:37,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-22 02:14:37,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-22 02:14:37,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-22 02:14:37,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-10-22 02:14:37,579 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-10-22 02:14:37,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:14:37,579 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-10-22 02:14:37,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 02:14:37,580 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-10-22 02:14:37,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:14:37,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:14:37,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:14:37,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:14:37,581 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:14:37,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:14:37,581 INFO L82 PathProgramCache]: Analyzing trace with hash -170339707, now seen corresponding path program 1 times [2020-10-22 02:14:37,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:14:37,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530691650] [2020-10-22 02:14:37,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:14:37,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:14:37,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:14:37,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530691650] [2020-10-22 02:14:37,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:14:37,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:14:37,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [970527740] [2020-10-22 02:14:37,615 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:14:37,617 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:14:37,624 INFO L252 McrAutomatonBuilder]: Finished intersection with 50 states and 84 transitions. [2020-10-22 02:14:37,624 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:14:37,643 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:14:37,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:14:37,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:14:37,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:14:37,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:14:37,644 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 3 states. [2020-10-22 02:14:37,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:14:37,657 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-10-22 02:14:37,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:14:37,658 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-22 02:14:37,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:14:37,659 INFO L225 Difference]: With dead ends: 35 [2020-10-22 02:14:37,659 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:14:37,659 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:14:37,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:14:37,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:14:37,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:14:37,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:14:37,660 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-22 02:14:37,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:14:37,661 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:14:37,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:14:37,661 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:14:37,661 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:14:37,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 02:14:37,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:14:37 BasicIcfg [2020-10-22 02:14:37,666 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:14:37,667 INFO L168 Benchmark]: Toolchain (without parser) took 6227.16 ms. Allocated memory was 148.9 MB in the beginning and 270.5 MB in the end (delta: 121.6 MB). Free memory was 104.1 MB in the beginning and 118.4 MB in the end (delta: -14.3 MB). Peak memory consumption was 107.3 MB. Max. memory is 7.1 GB. [2020-10-22 02:14:37,668 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 148.9 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-22 02:14:37,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 848.65 ms. Allocated memory was 148.9 MB in the beginning and 203.4 MB in the end (delta: 54.5 MB). Free memory was 103.3 MB in the beginning and 159.2 MB in the end (delta: -55.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-10-22 02:14:37,670 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.44 ms. Allocated memory is still 203.4 MB. Free memory was 159.2 MB in the beginning and 157.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-22 02:14:37,671 INFO L168 Benchmark]: Boogie Preprocessor took 67.51 ms. Allocated memory is still 203.4 MB. Free memory was 157.3 MB in the beginning and 156.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-22 02:14:37,672 INFO L168 Benchmark]: RCFGBuilder took 452.48 ms. Allocated memory is still 203.4 MB. Free memory was 155.3 MB in the beginning and 131.6 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-10-22 02:14:37,673 INFO L168 Benchmark]: TraceAbstraction took 4754.58 ms. Allocated memory was 203.4 MB in the beginning and 270.5 MB in the end (delta: 67.1 MB). Free memory was 131.0 MB in the beginning and 118.4 MB in the end (delta: 12.5 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. [2020-10-22 02:14:37,678 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 148.9 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 848.65 ms. Allocated memory was 148.9 MB in the beginning and 203.4 MB in the end (delta: 54.5 MB). Free memory was 103.3 MB in the beginning and 159.2 MB in the end (delta: -55.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 92.44 ms. Allocated memory is still 203.4 MB. Free memory was 159.2 MB in the beginning and 157.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 67.51 ms. Allocated memory is still 203.4 MB. Free memory was 157.3 MB in the beginning and 156.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 452.48 ms. Allocated memory is still 203.4 MB. Free memory was 155.3 MB in the beginning and 131.6 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4754.58 ms. Allocated memory was 203.4 MB in the beginning and 270.5 MB in the end (delta: 67.1 MB). Free memory was 131.0 MB in the beginning and 118.4 MB in the end (delta: 12.5 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 803 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 56 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.2s, 85 PlacesBefore, 31 PlacesAfterwards, 78 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 75 TotalNumberOfCompositions, 3321 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 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 125 SDtfs, 84 SDslu, 138 SDs, 0 SdLazy, 77 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 7 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 2346 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...