/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/safe025_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:18:04,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:18:04,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:18:04,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:18:04,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:18:04,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:18:04,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:18:04,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:18:04,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:18:04,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:18:04,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:18:04,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:18:04,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:18:04,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:18:04,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:18:04,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:18:04,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:18:04,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:18:04,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:18:04,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:18:04,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:18:04,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:18:04,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:18:04,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:18:04,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 02:18:04,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 02:18:04,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 02:18:04,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 02:18:04,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 02:18:04,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 02:18:04,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:18:04,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:18:04,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:18:04,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:18:04,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:18:04,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:18:04,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:18:04,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:18:04,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:18:04,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:18:04,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:18:04,868 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 02:18:04,918 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:18:04,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:18:04,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:18:04,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:18:04,921 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:18:04,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:18:04,922 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:18:04,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:18:04,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:18:04,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:18:04,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:18:04,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:18:04,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:18:04,924 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:18:04,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:18:04,924 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:18:04,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:18:04,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:18:04,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:18:04,925 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:18:04,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:18:04,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:18:04,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:18:04,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:18:04,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:18:04,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:18:04,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:18:04,929 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:18:04,929 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:18:04,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:18:04,929 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:18:05,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:18:05,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:18:05,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:18:05,266 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:18:05,266 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:18:05,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_tso.opt.i [2020-10-22 02:18:05,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f99949180/719e8eb93b824685a6da0f89f4776074/FLAG5f480d0d6 [2020-10-22 02:18:05,899 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:18:05,899 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_tso.opt.i [2020-10-22 02:18:05,914 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f99949180/719e8eb93b824685a6da0f89f4776074/FLAG5f480d0d6 [2020-10-22 02:18:06,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f99949180/719e8eb93b824685a6da0f89f4776074 [2020-10-22 02:18:06,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:18:06,112 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:18:06,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:18:06,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:18:06,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:18:06,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:18:06" (1/1) ... [2020-10-22 02:18:06,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5565e4a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:06, skipping insertion in model container [2020-10-22 02:18:06,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:18:06" (1/1) ... [2020-10-22 02:18:06,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:18:06,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:18:06,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:18:06,627 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:18:06,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:18:06,811 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:18:06,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:06 WrapperNode [2020-10-22 02:18:06,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:18:06,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:18:06,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:18:06,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:18:06,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:06" (1/1) ... [2020-10-22 02:18:06,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:06" (1/1) ... [2020-10-22 02:18:06,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:18:06,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:18:06,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:18:06,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:18:06,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:06" (1/1) ... [2020-10-22 02:18:06,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:06" (1/1) ... [2020-10-22 02:18:06,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:06" (1/1) ... [2020-10-22 02:18:06,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:06" (1/1) ... [2020-10-22 02:18:06,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:06" (1/1) ... [2020-10-22 02:18:06,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:06" (1/1) ... [2020-10-22 02:18:06,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:06" (1/1) ... [2020-10-22 02:18:06,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:18:06,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:18:06,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:18:06,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:18:06,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:06" (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 02:18:06,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:18:06,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:18:06,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:18:06,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:18:06,966 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:18:06,966 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:18:06,971 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:18:06,971 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:18:06,972 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 02:18:06,972 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 02:18:06,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:18:06,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:18:06,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:18:06,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:18:06,977 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 02:18:07,377 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:18:07,377 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:18:07,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:18:07 BoogieIcfgContainer [2020-10-22 02:18:07,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:18:07,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:18:07,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:18:07,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:18:07,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:18:06" (1/3) ... [2020-10-22 02:18:07,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29934cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:18:07, skipping insertion in model container [2020-10-22 02:18:07,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:06" (2/3) ... [2020-10-22 02:18:07,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29934cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:18:07, skipping insertion in model container [2020-10-22 02:18:07,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:18:07" (3/3) ... [2020-10-22 02:18:07,397 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_tso.opt.i [2020-10-22 02:18:07,409 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:18:07,410 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:18:07,419 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:18:07,420 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:18:07,452 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,452 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,452 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,456 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,457 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,458 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,458 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,459 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,459 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,459 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,459 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,460 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,460 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,460 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,461 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,461 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,462 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,466 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,466 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,466 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,467 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,473 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,474 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,476 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,476 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:07,479 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:18:07,490 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 02:18:07,509 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:18:07,509 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:18:07,509 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:18:07,510 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:18:07,510 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:18:07,510 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:18:07,510 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:18:07,510 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:18:07,526 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:18:07,526 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 02:18:07,529 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 02:18:07,532 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-22 02:18:07,587 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-22 02:18:07,588 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:18:07,598 INFO L80 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-22 02:18:07,602 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-22 02:18:09,360 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-10-22 02:18:09,534 INFO L131 LiptonReduction]: Checked pairs total: 2926 [2020-10-22 02:18:09,534 INFO L133 LiptonReduction]: Total number of compositions: 72 [2020-10-22 02:18:09,542 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-22 02:18:09,585 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-22 02:18:09,588 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-22 02:18:09,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 02:18:09,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:09,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:09,623 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:09,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:09,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1098074663, now seen corresponding path program 1 times [2020-10-22 02:18:09,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:09,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15111236] [2020-10-22 02:18:09,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:09,882 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 02:18:09,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15111236] [2020-10-22 02:18:09,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:09,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:18:09,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [220807106] [2020-10-22 02:18:09,887 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:09,890 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:09,907 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 02:18:09,908 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:09,913 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:09,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:18:09,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:09,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:18:09,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:18:09,935 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-22 02:18:10,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:10,001 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-22 02:18:10,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:18:10,005 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-22 02:18:10,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:10,027 INFO L225 Difference]: With dead ends: 282 [2020-10-22 02:18:10,027 INFO L226 Difference]: Without dead ends: 218 [2020-10-22 02:18:10,029 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 02:18:10,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-22 02:18:10,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-22 02:18:10,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-22 02:18:10,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-22 02:18:10,128 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-22 02:18:10,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:10,129 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-22 02:18:10,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:18:10,129 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-22 02:18:10,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 02:18:10,131 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:10,131 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:10,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:18:10,131 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:10,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:10,132 INFO L82 PathProgramCache]: Analyzing trace with hash 305615834, now seen corresponding path program 1 times [2020-10-22 02:18:10,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:10,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100191193] [2020-10-22 02:18:10,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:10,221 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 02:18:10,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100191193] [2020-10-22 02:18:10,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:10,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:18:10,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [612777097] [2020-10-22 02:18:10,222 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:10,223 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:10,225 INFO L252 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-10-22 02:18:10,225 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:10,258 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:10,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:18:10,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:10,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:18:10,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:18:10,260 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-10-22 02:18:10,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:10,280 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-10-22 02:18:10,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:18:10,281 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-22 02:18:10,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:10,283 INFO L225 Difference]: With dead ends: 202 [2020-10-22 02:18:10,283 INFO L226 Difference]: Without dead ends: 202 [2020-10-22 02:18:10,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 02:18:10,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-22 02:18:10,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-22 02:18:10,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-22 02:18:10,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-22 02:18:10,302 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-10-22 02:18:10,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:10,303 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-22 02:18:10,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:18:10,303 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-22 02:18:10,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 02:18:10,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:10,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:10,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:18:10,305 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:10,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:10,306 INFO L82 PathProgramCache]: Analyzing trace with hash 839872088, now seen corresponding path program 1 times [2020-10-22 02:18:10,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:10,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325535794] [2020-10-22 02:18:10,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:10,363 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 02:18:10,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325535794] [2020-10-22 02:18:10,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:10,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:18:10,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [658616055] [2020-10-22 02:18:10,364 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:10,365 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:10,367 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 22 transitions. [2020-10-22 02:18:10,367 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:10,438 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:10,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:18:10,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:10,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:18:10,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:18:10,440 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-22 02:18:10,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:10,448 INFO L93 Difference]: Finished difference Result 194 states and 518 transitions. [2020-10-22 02:18:10,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:18:10,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-22 02:18:10,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:10,451 INFO L225 Difference]: With dead ends: 194 [2020-10-22 02:18:10,452 INFO L226 Difference]: Without dead ends: 194 [2020-10-22 02:18:10,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 02:18:10,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-22 02:18:10,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2020-10-22 02:18:10,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-10-22 02:18:10,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 518 transitions. [2020-10-22 02:18:10,468 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 518 transitions. Word has length 10 [2020-10-22 02:18:10,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:10,468 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 518 transitions. [2020-10-22 02:18:10,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:18:10,468 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 518 transitions. [2020-10-22 02:18:10,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 02:18:10,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:10,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:10,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:18:10,471 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:10,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:10,471 INFO L82 PathProgramCache]: Analyzing trace with hash 266199867, now seen corresponding path program 1 times [2020-10-22 02:18:10,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:10,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998090714] [2020-10-22 02:18:10,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:10,593 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 02:18:10,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998090714] [2020-10-22 02:18:10,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:10,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:18:10,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [114106689] [2020-10-22 02:18:10,595 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:10,596 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:10,599 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-10-22 02:18:10,599 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:10,677 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:10,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:18:10,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:10,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:18:10,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:18:10,678 INFO L87 Difference]: Start difference. First operand 194 states and 518 transitions. Second operand 4 states. [2020-10-22 02:18:10,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:10,715 INFO L93 Difference]: Finished difference Result 225 states and 557 transitions. [2020-10-22 02:18:10,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:18:10,716 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-22 02:18:10,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:10,717 INFO L225 Difference]: With dead ends: 225 [2020-10-22 02:18:10,718 INFO L226 Difference]: Without dead ends: 161 [2020-10-22 02:18:10,718 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 02:18:10,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-10-22 02:18:10,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2020-10-22 02:18:10,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-10-22 02:18:10,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 386 transitions. [2020-10-22 02:18:10,729 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 386 transitions. Word has length 11 [2020-10-22 02:18:10,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:10,730 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 386 transitions. [2020-10-22 02:18:10,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:18:10,730 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 386 transitions. [2020-10-22 02:18:10,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 02:18:10,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:10,732 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:10,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:18:10,732 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:10,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:10,733 INFO L82 PathProgramCache]: Analyzing trace with hash -297551950, now seen corresponding path program 1 times [2020-10-22 02:18:10,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:10,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846268648] [2020-10-22 02:18:10,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:10,800 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 02:18:10,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846268648] [2020-10-22 02:18:10,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:10,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:18:10,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1024205318] [2020-10-22 02:18:10,801 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:10,802 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:10,805 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-10-22 02:18:10,805 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:10,918 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:10,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:18:10,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:10,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:18:10,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:18:10,920 INFO L87 Difference]: Start difference. First operand 161 states and 386 transitions. Second operand 5 states. [2020-10-22 02:18:10,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:10,987 INFO L93 Difference]: Finished difference Result 160 states and 362 transitions. [2020-10-22 02:18:10,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:18:10,988 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-22 02:18:10,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:10,989 INFO L225 Difference]: With dead ends: 160 [2020-10-22 02:18:10,989 INFO L226 Difference]: Without dead ends: 123 [2020-10-22 02:18:10,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-22 02:18:10,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-10-22 02:18:11,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-10-22 02:18:11,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-22 02:18:11,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-10-22 02:18:11,005 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 12 [2020-10-22 02:18:11,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:11,006 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-10-22 02:18:11,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:18:11,010 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-10-22 02:18:11,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:18:11,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:11,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:11,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:18:11,012 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:11,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:11,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1813731877, now seen corresponding path program 1 times [2020-10-22 02:18:11,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:11,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013975706] [2020-10-22 02:18:11,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:11,091 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 02:18:11,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013975706] [2020-10-22 02:18:11,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:11,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:18:11,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1709507563] [2020-10-22 02:18:11,092 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:11,094 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:11,096 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 30 transitions. [2020-10-22 02:18:11,097 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:11,175 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:11,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-22 02:18:11,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:11,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-22 02:18:11,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-22 02:18:11,177 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 6 states. [2020-10-22 02:18:11,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:11,229 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-10-22 02:18:11,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 02:18:11,230 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-22 02:18:11,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:11,231 INFO L225 Difference]: With dead ends: 118 [2020-10-22 02:18:11,231 INFO L226 Difference]: Without dead ends: 108 [2020-10-22 02:18:11,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:18:11,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-22 02:18:11,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-22 02:18:11,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-22 02:18:11,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-10-22 02:18:11,237 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-10-22 02:18:11,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:11,237 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-10-22 02:18:11,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-22 02:18:11,238 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-10-22 02:18:11,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:18:11,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:11,239 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 02:18:11,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:18:11,239 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:11,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:11,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1641541318, now seen corresponding path program 1 times [2020-10-22 02:18:11,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:11,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280476954] [2020-10-22 02:18:11,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:11,306 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 02:18:11,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280476954] [2020-10-22 02:18:11,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:11,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:18:11,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [760189167] [2020-10-22 02:18:11,308 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:11,310 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:11,341 INFO L252 McrAutomatonBuilder]: Finished intersection with 54 states and 100 transitions. [2020-10-22 02:18:11,342 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:11,638 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:11,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:18:11,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:11,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:18:11,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:18:11,640 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 4 states. [2020-10-22 02:18:11,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:11,682 INFO L93 Difference]: Finished difference Result 133 states and 287 transitions. [2020-10-22 02:18:11,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:18:11,683 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 02:18:11,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:11,684 INFO L225 Difference]: With dead ends: 133 [2020-10-22 02:18:11,684 INFO L226 Difference]: Without dead ends: 84 [2020-10-22 02:18:11,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 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 02:18:11,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-22 02:18:11,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-10-22 02:18:11,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-22 02:18:11,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 174 transitions. [2020-10-22 02:18:11,689 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 174 transitions. Word has length 17 [2020-10-22 02:18:11,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:11,689 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 174 transitions. [2020-10-22 02:18:11,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:18:11,689 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 174 transitions. [2020-10-22 02:18:11,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:18:11,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:11,695 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 02:18:11,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 02:18:11,695 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:11,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:11,696 INFO L82 PathProgramCache]: Analyzing trace with hash -810832998, now seen corresponding path program 2 times [2020-10-22 02:18:11,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:11,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261466588] [2020-10-22 02:18:11,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:11,796 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 02:18:11,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261466588] [2020-10-22 02:18:11,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:11,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:18:11,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1993070089] [2020-10-22 02:18:11,797 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:11,799 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:11,807 INFO L252 McrAutomatonBuilder]: Finished intersection with 42 states and 69 transitions. [2020-10-22 02:18:11,808 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:11,987 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:11,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:18:11,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:11,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:18:11,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:18:11,989 INFO L87 Difference]: Start difference. First operand 84 states and 174 transitions. Second operand 4 states. [2020-10-22 02:18:12,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:12,020 INFO L93 Difference]: Finished difference Result 121 states and 247 transitions. [2020-10-22 02:18:12,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:18:12,020 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 02:18:12,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:12,021 INFO L225 Difference]: With dead ends: 121 [2020-10-22 02:18:12,021 INFO L226 Difference]: Without dead ends: 72 [2020-10-22 02:18:12,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 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 02:18:12,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-22 02:18:12,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-22 02:18:12,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-22 02:18:12,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 140 transitions. [2020-10-22 02:18:12,027 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 140 transitions. Word has length 17 [2020-10-22 02:18:12,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:12,027 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 140 transitions. [2020-10-22 02:18:12,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:18:12,027 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 140 transitions. [2020-10-22 02:18:12,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:18:12,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:12,028 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 02:18:12,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 02:18:12,028 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:12,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:12,029 INFO L82 PathProgramCache]: Analyzing trace with hash -534648938, now seen corresponding path program 3 times [2020-10-22 02:18:12,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:12,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232824992] [2020-10-22 02:18:12,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:12,061 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 02:18:12,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232824992] [2020-10-22 02:18:12,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:12,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:18:12,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [666642272] [2020-10-22 02:18:12,063 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:12,065 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:12,070 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 77 transitions. [2020-10-22 02:18:12,070 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:12,374 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:12,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:18:12,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:12,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:18:12,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:18:12,375 INFO L87 Difference]: Start difference. First operand 72 states and 140 transitions. Second operand 4 states. [2020-10-22 02:18:12,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:12,391 INFO L93 Difference]: Finished difference Result 91 states and 172 transitions. [2020-10-22 02:18:12,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:18:12,392 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 02:18:12,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:12,392 INFO L225 Difference]: With dead ends: 91 [2020-10-22 02:18:12,393 INFO L226 Difference]: Without dead ends: 30 [2020-10-22 02:18:12,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 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 02:18:12,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-22 02:18:12,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-22 02:18:12,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-22 02:18:12,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-22 02:18:12,395 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-22 02:18:12,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:12,395 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-22 02:18:12,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:18:12,396 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-22 02:18:12,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:18:12,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:12,396 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 02:18:12,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-22 02:18:12,397 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:12,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:12,397 INFO L82 PathProgramCache]: Analyzing trace with hash 172930902, now seen corresponding path program 4 times [2020-10-22 02:18:12,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:12,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776702901] [2020-10-22 02:18:12,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:12,433 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 02:18:12,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776702901] [2020-10-22 02:18:12,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:12,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:18:12,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [126241954] [2020-10-22 02:18:12,435 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:12,437 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:12,441 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 29 transitions. [2020-10-22 02:18:12,442 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:12,506 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:12,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:18:12,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:12,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:18:12,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:18:12,507 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-10-22 02:18:12,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:12,523 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-22 02:18:12,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:18:12,524 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 02:18:12,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:12,524 INFO L225 Difference]: With dead ends: 29 [2020-10-22 02:18:12,524 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:18:12,525 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 02:18:12,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:18:12,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:18:12,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:18:12,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:18:12,526 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-22 02:18:12,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:12,526 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:18:12,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:18:12,526 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:18:12,527 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:18:12,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-22 02:18:12,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:18:12 BasicIcfg [2020-10-22 02:18:12,531 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:18:12,533 INFO L168 Benchmark]: Toolchain (without parser) took 6427.22 ms. Allocated memory was 138.9 MB in the beginning and 287.8 MB in the end (delta: 148.9 MB). Free memory was 100.4 MB in the beginning and 99.5 MB in the end (delta: 890.4 kB). Peak memory consumption was 149.8 MB. Max. memory is 7.1 GB. [2020-10-22 02:18:12,534 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 02:18:12,535 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.98 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 99.3 MB in the beginning and 158.9 MB in the end (delta: -59.6 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-10-22 02:18:12,536 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.11 ms. Allocated memory is still 202.9 MB. Free memory was 158.9 MB in the beginning and 156.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-10-22 02:18:12,537 INFO L168 Benchmark]: Boogie Preprocessor took 28.57 ms. Allocated memory is still 202.9 MB. Free memory was 156.7 MB in the beginning and 154.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:18:12,538 INFO L168 Benchmark]: RCFGBuilder took 490.77 ms. Allocated memory is still 202.9 MB. Free memory was 154.7 MB in the beginning and 130.7 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:18:12,538 INFO L168 Benchmark]: TraceAbstraction took 5149.36 ms. Allocated memory was 202.9 MB in the beginning and 287.8 MB in the end (delta: 84.9 MB). Free memory was 130.7 MB in the beginning and 99.5 MB in the end (delta: 31.2 MB). Peak memory consumption was 116.1 MB. Max. memory is 7.1 GB. [2020-10-22 02:18:12,542 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 699.98 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 99.3 MB in the beginning and 158.9 MB in the end (delta: -59.6 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.11 ms. Allocated memory is still 202.9 MB. Free memory was 158.9 MB in the beginning and 156.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.57 ms. Allocated memory is still 202.9 MB. Free memory was 156.7 MB in the beginning and 154.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 490.77 ms. Allocated memory is still 202.9 MB. Free memory was 154.7 MB in the beginning and 130.7 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5149.36 ms. Allocated memory was 202.9 MB in the beginning and 287.8 MB in the end (delta: 84.9 MB). Free memory was 130.7 MB in the beginning and 99.5 MB in the end (delta: 31.2 MB). Peak memory consumption was 116.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 787 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 52 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.0s, 86 PlacesBefore, 31 PlacesAfterwards, 79 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 72 TotalNumberOfCompositions, 2926 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 209 SDtfs, 127 SDslu, 242 SDs, 0 SdLazy, 131 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 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, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 4448 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...