/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/safe019_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:16:31,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:16:31,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:16:31,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:16:31,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:16:31,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:16:31,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:16:31,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:16:31,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:16:31,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:16:31,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:16:31,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:16:31,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:16:31,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:16:31,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:16:31,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:16:31,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:16:31,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:16:31,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:16:31,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:16:31,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:16:32,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:16:32,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:16:32,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:16:32,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 02:16:32,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 02:16:32,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 02:16:32,011 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 02:16:32,012 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 02:16:32,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 02:16:32,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:16:32,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:16:32,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:16:32,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:16:32,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:16:32,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:16:32,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:16:32,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:16:32,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:16:32,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:16:32,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:16:32,033 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 02:16:32,081 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:16:32,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:16:32,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:16:32,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:16:32,085 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:16:32,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:16:32,086 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:16:32,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:16:32,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:16:32,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:16:32,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:16:32,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:16:32,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:16:32,087 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:16:32,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:16:32,087 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:16:32,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:16:32,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:16:32,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:16:32,089 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:16:32,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:16:32,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:16:32,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:16:32,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:16:32,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:16:32,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:16:32,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:16:32,090 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:16:32,091 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:16:32,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:16:32,091 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:16:32,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:16:32,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:16:32,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:16:32,410 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:16:32,411 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:16:32,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2020-10-22 02:16:32,489 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24a0ee2e/16dd684ab7b14574b3889e5e6af564d1/FLAG6ea469ac1 [2020-10-22 02:16:33,112 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:16:33,113 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2020-10-22 02:16:33,126 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24a0ee2e/16dd684ab7b14574b3889e5e6af564d1/FLAG6ea469ac1 [2020-10-22 02:16:33,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24a0ee2e/16dd684ab7b14574b3889e5e6af564d1 [2020-10-22 02:16:33,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:16:33,359 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:16:33,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:16:33,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:16:33,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:16:33,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:16:33" (1/1) ... [2020-10-22 02:16:33,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fef3ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:33, skipping insertion in model container [2020-10-22 02:16:33,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:16:33" (1/1) ... [2020-10-22 02:16:33,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:16:33,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:16:33,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:16:33,936 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:16:33,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:16:34,077 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:16:34,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:34 WrapperNode [2020-10-22 02:16:34,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:16:34,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:16:34,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:16:34,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:16:34,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:34" (1/1) ... [2020-10-22 02:16:34,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:34" (1/1) ... [2020-10-22 02:16:34,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:16:34,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:16:34,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:16:34,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:16:34,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:34" (1/1) ... [2020-10-22 02:16:34,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:34" (1/1) ... [2020-10-22 02:16:34,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:34" (1/1) ... [2020-10-22 02:16:34,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:34" (1/1) ... [2020-10-22 02:16:34,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:34" (1/1) ... [2020-10-22 02:16:34,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:34" (1/1) ... [2020-10-22 02:16:34,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:34" (1/1) ... [2020-10-22 02:16:34,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:16:34,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:16:34,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:16:34,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:16:34,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:34" (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 02:16:34,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:16:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:16:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:16:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:16:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:16:34,251 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:16:34,252 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:16:34,252 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:16:34,252 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 02:16:34,252 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 02:16:34,252 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-22 02:16:34,253 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-22 02:16:34,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:16:34,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:16:34,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:16:34,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:16:34,257 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 02:16:34,669 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:16:34,669 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:16:34,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:16:34 BoogieIcfgContainer [2020-10-22 02:16:34,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:16:34,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:16:34,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:16:34,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:16:34,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:16:33" (1/3) ... [2020-10-22 02:16:34,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343b6314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:16:34, skipping insertion in model container [2020-10-22 02:16:34,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:16:34" (2/3) ... [2020-10-22 02:16:34,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343b6314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:16:34, skipping insertion in model container [2020-10-22 02:16:34,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:16:34" (3/3) ... [2020-10-22 02:16:34,684 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.opt.i [2020-10-22 02:16:34,696 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:16:34,697 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:16:34,705 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:16:34,706 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:16:34,738 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,738 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,738 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,739 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,739 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,740 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,740 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,741 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,741 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,741 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,742 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,742 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,742 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,742 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,743 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,743 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,743 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,744 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,744 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,744 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,744 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,745 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,745 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,745 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,750 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,750 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,750 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,751 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,765 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,765 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,765 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,766 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,768 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,769 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,769 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,769 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,771 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,772 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,772 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,772 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:16:34,774 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:16:34,788 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-22 02:16:34,810 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:16:34,810 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:16:34,811 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:16:34,811 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:16:34,811 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:16:34,811 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:16:34,811 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:16:34,811 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:16:34,826 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:16:34,827 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 90 transitions, 200 flow [2020-10-22 02:16:34,830 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 90 transitions, 200 flow [2020-10-22 02:16:34,832 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 100 places, 90 transitions, 200 flow [2020-10-22 02:16:34,883 INFO L129 PetriNetUnfolder]: 3/86 cut-off events. [2020-10-22 02:16:34,883 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:16:34,890 INFO L80 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 3/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-10-22 02:16:34,894 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-10-22 02:16:36,664 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-22 02:16:36,960 INFO L131 LiptonReduction]: Checked pairs total: 4371 [2020-10-22 02:16:36,961 INFO L133 LiptonReduction]: Total number of compositions: 85 [2020-10-22 02:16:36,967 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-10-22 02:16:37,016 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-22 02:16:37,018 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-22 02:16:37,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 02:16:37,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:37,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:37,030 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:37,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:37,036 INFO L82 PathProgramCache]: Analyzing trace with hash -849468874, now seen corresponding path program 1 times [2020-10-22 02:16:37,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:37,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054330416] [2020-10-22 02:16:37,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:37,296 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 02:16:37,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054330416] [2020-10-22 02:16:37,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:37,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:16:37,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1808479568] [2020-10-22 02:16:37,300 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:37,304 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:37,324 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-22 02:16:37,325 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:37,329 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:16:37,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:16:37,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:37,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:16:37,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:16:37,349 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-22 02:16:37,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:37,418 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-22 02:16:37,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:16:37,423 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-22 02:16:37,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:37,455 INFO L225 Difference]: With dead ends: 670 [2020-10-22 02:16:37,455 INFO L226 Difference]: Without dead ends: 526 [2020-10-22 02:16:37,456 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 02:16:37,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-22 02:16:37,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-22 02:16:37,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-22 02:16:37,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-22 02:16:37,561 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-22 02:16:37,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:37,562 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-22 02:16:37,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:16:37,562 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-22 02:16:37,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 02:16:37,565 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:37,565 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:37,566 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:16:37,566 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:37,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:37,566 INFO L82 PathProgramCache]: Analyzing trace with hash -579920157, now seen corresponding path program 1 times [2020-10-22 02:16:37,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:37,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842928344] [2020-10-22 02:16:37,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:37,710 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 02:16:37,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842928344] [2020-10-22 02:16:37,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:37,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:16:37,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1455910145] [2020-10-22 02:16:37,712 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:37,713 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:37,715 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 17 transitions. [2020-10-22 02:16:37,715 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:37,766 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:16:37,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:16:37,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:37,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:16:37,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:16:37,769 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-22 02:16:37,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:37,800 INFO L93 Difference]: Finished difference Result 682 states and 2180 transitions. [2020-10-22 02:16:37,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:16:37,801 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-22 02:16:37,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:37,805 INFO L225 Difference]: With dead ends: 682 [2020-10-22 02:16:37,805 INFO L226 Difference]: Without dead ends: 394 [2020-10-22 02:16:37,806 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 02:16:37,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-22 02:16:37,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-22 02:16:37,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-22 02:16:37,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1224 transitions. [2020-10-22 02:16:37,835 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1224 transitions. Word has length 11 [2020-10-22 02:16:37,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:37,835 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1224 transitions. [2020-10-22 02:16:37,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:16:37,836 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1224 transitions. [2020-10-22 02:16:37,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 02:16:37,838 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:37,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:37,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:16:37,838 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:37,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:37,839 INFO L82 PathProgramCache]: Analyzing trace with hash -536731131, now seen corresponding path program 1 times [2020-10-22 02:16:37,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:37,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086814176] [2020-10-22 02:16:37,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:37,897 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 02:16:37,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086814176] [2020-10-22 02:16:37,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:37,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:16:37,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [972329772] [2020-10-22 02:16:37,899 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:37,900 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:37,903 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-10-22 02:16:37,903 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:38,007 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:16:38,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:16:38,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:38,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:16:38,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:16:38,008 INFO L87 Difference]: Start difference. First operand 394 states and 1224 transitions. Second operand 3 states. [2020-10-22 02:16:38,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:38,021 INFO L93 Difference]: Finished difference Result 386 states and 1190 transitions. [2020-10-22 02:16:38,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:16:38,021 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-22 02:16:38,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:38,025 INFO L225 Difference]: With dead ends: 386 [2020-10-22 02:16:38,026 INFO L226 Difference]: Without dead ends: 386 [2020-10-22 02:16:38,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 02:16:38,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-10-22 02:16:38,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2020-10-22 02:16:38,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-10-22 02:16:38,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 1190 transitions. [2020-10-22 02:16:38,045 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 1190 transitions. Word has length 12 [2020-10-22 02:16:38,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:38,046 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 1190 transitions. [2020-10-22 02:16:38,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:16:38,046 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 1190 transitions. [2020-10-22 02:16:38,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 02:16:38,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:38,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:38,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:16:38,049 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:38,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:38,050 INFO L82 PathProgramCache]: Analyzing trace with hash 541202337, now seen corresponding path program 1 times [2020-10-22 02:16:38,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:38,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123241497] [2020-10-22 02:16:38,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:38,092 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 02:16:38,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123241497] [2020-10-22 02:16:38,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:38,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:16:38,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [838847635] [2020-10-22 02:16:38,093 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:38,095 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:38,098 INFO L252 McrAutomatonBuilder]: Finished intersection with 27 states and 41 transitions. [2020-10-22 02:16:38,098 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:38,289 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:16:38,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:16:38,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:38,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:16:38,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:16:38,291 INFO L87 Difference]: Start difference. First operand 386 states and 1190 transitions. Second operand 3 states. [2020-10-22 02:16:38,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:38,305 INFO L93 Difference]: Finished difference Result 370 states and 1130 transitions. [2020-10-22 02:16:38,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:16:38,310 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-22 02:16:38,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:38,314 INFO L225 Difference]: With dead ends: 370 [2020-10-22 02:16:38,314 INFO L226 Difference]: Without dead ends: 370 [2020-10-22 02:16:38,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 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 02:16:38,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-10-22 02:16:38,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2020-10-22 02:16:38,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-10-22 02:16:38,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1130 transitions. [2020-10-22 02:16:38,338 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1130 transitions. Word has length 13 [2020-10-22 02:16:38,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:38,339 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 1130 transitions. [2020-10-22 02:16:38,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:16:38,340 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1130 transitions. [2020-10-22 02:16:38,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:16:38,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:38,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:38,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:16:38,348 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:38,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:38,349 INFO L82 PathProgramCache]: Analyzing trace with hash -9141191, now seen corresponding path program 1 times [2020-10-22 02:16:38,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:38,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437054821] [2020-10-22 02:16:38,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:38,433 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 02:16:38,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437054821] [2020-10-22 02:16:38,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:38,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:16:38,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [341397024] [2020-10-22 02:16:38,435 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:38,436 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:38,442 INFO L252 McrAutomatonBuilder]: Finished intersection with 45 states and 84 transitions. [2020-10-22 02:16:38,442 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:38,918 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:16:38,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:16:38,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:38,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:16:38,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:16:38,919 INFO L87 Difference]: Start difference. First operand 370 states and 1130 transitions. Second operand 4 states. [2020-10-22 02:16:38,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:38,954 INFO L93 Difference]: Finished difference Result 526 states and 1582 transitions. [2020-10-22 02:16:38,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:16:38,957 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-22 02:16:38,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:38,959 INFO L225 Difference]: With dead ends: 526 [2020-10-22 02:16:38,959 INFO L226 Difference]: Without dead ends: 286 [2020-10-22 02:16:38,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 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 02:16:38,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-22 02:16:38,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2020-10-22 02:16:38,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-10-22 02:16:38,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 851 transitions. [2020-10-22 02:16:38,970 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 851 transitions. Word has length 14 [2020-10-22 02:16:38,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:38,970 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 851 transitions. [2020-10-22 02:16:38,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:16:38,970 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 851 transitions. [2020-10-22 02:16:38,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:16:38,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:38,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:38,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:16:38,972 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:38,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:38,973 INFO L82 PathProgramCache]: Analyzing trace with hash -402598089, now seen corresponding path program 2 times [2020-10-22 02:16:38,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:38,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238697254] [2020-10-22 02:16:38,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:39,045 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 02:16:39,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238697254] [2020-10-22 02:16:39,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:39,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:16:39,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1169777965] [2020-10-22 02:16:39,046 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:39,047 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:39,052 INFO L252 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-10-22 02:16:39,053 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:39,071 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:16:39,358 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [8098#(not (= 4 ~__unbuffered_cnt~0))] [2020-10-22 02:16:39,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:16:39,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:39,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:16:39,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:16:39,359 INFO L87 Difference]: Start difference. First operand 286 states and 851 transitions. Second operand 5 states. [2020-10-22 02:16:39,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:39,461 INFO L93 Difference]: Finished difference Result 301 states and 817 transitions. [2020-10-22 02:16:39,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 02:16:39,461 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-22 02:16:39,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:39,463 INFO L225 Difference]: With dead ends: 301 [2020-10-22 02:16:39,463 INFO L226 Difference]: Without dead ends: 208 [2020-10-22 02:16:39,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 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 02:16:39,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-10-22 02:16:39,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2020-10-22 02:16:39,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-10-22 02:16:39,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 528 transitions. [2020-10-22 02:16:39,471 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 528 transitions. Word has length 14 [2020-10-22 02:16:39,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:39,472 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 528 transitions. [2020-10-22 02:16:39,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:16:39,472 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 528 transitions. [2020-10-22 02:16:39,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:16:39,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:39,473 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:39,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:16:39,473 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:39,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:39,474 INFO L82 PathProgramCache]: Analyzing trace with hash -2108608562, now seen corresponding path program 1 times [2020-10-22 02:16:39,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:39,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631265035] [2020-10-22 02:16:39,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:39,548 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 02:16:39,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631265035] [2020-10-22 02:16:39,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:39,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:16:39,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2136805985] [2020-10-22 02:16:39,549 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:39,552 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:39,562 INFO L252 McrAutomatonBuilder]: Finished intersection with 44 states and 76 transitions. [2020-10-22 02:16:39,562 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:39,574 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:16:39,957 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [8826#(not (= 4 ~__unbuffered_cnt~0)), 8827#(not (= ~__unbuffered_cnt~0 3)), 8828#(not (= ~__unbuffered_cnt~0 2)), 8829#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 02:16:39,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:16:39,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:39,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:16:39,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:16:39,959 INFO L87 Difference]: Start difference. First operand 208 states and 528 transitions. Second operand 10 states. [2020-10-22 02:16:40,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:40,102 INFO L93 Difference]: Finished difference Result 185 states and 463 transitions. [2020-10-22 02:16:40,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-22 02:16:40,102 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:16:40,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:40,104 INFO L225 Difference]: With dead ends: 185 [2020-10-22 02:16:40,104 INFO L226 Difference]: Without dead ends: 147 [2020-10-22 02:16:40,104 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-10-22 02:16:40,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-22 02:16:40,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2020-10-22 02:16:40,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-22 02:16:40,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 362 transitions. [2020-10-22 02:16:40,113 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 362 transitions. Word has length 16 [2020-10-22 02:16:40,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:40,113 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 362 transitions. [2020-10-22 02:16:40,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:16:40,114 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 362 transitions. [2020-10-22 02:16:40,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-22 02:16:40,115 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:40,115 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:40,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 02:16:40,116 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:40,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:40,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1961572935, now seen corresponding path program 1 times [2020-10-22 02:16:40,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:40,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960416033] [2020-10-22 02:16:40,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:40,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:16:40,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960416033] [2020-10-22 02:16:40,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:40,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:16:40,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [143696506] [2020-10-22 02:16:40,179 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:40,181 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:40,192 INFO L252 McrAutomatonBuilder]: Finished intersection with 65 states and 114 transitions. [2020-10-22 02:16:40,192 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:40,445 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:16:40,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:16:40,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:40,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:16:40,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:16:40,446 INFO L87 Difference]: Start difference. First operand 147 states and 362 transitions. Second operand 4 states. [2020-10-22 02:16:40,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:40,473 INFO L93 Difference]: Finished difference Result 180 states and 435 transitions. [2020-10-22 02:16:40,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:16:40,474 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-22 02:16:40,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:40,474 INFO L225 Difference]: With dead ends: 180 [2020-10-22 02:16:40,475 INFO L226 Difference]: Without dead ends: 51 [2020-10-22 02:16:40,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 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 02:16:40,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-22 02:16:40,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-22 02:16:40,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-22 02:16:40,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 97 transitions. [2020-10-22 02:16:40,478 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 97 transitions. Word has length 20 [2020-10-22 02:16:40,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:40,478 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 97 transitions. [2020-10-22 02:16:40,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:16:40,479 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 97 transitions. [2020-10-22 02:16:40,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-22 02:16:40,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:16:40,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:16:40,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 02:16:40,480 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:16:40,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:16:40,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1921960363, now seen corresponding path program 2 times [2020-10-22 02:16:40,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:16:40,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637843693] [2020-10-22 02:16:40,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:16:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:16:40,543 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 02:16:40,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637843693] [2020-10-22 02:16:40,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:16:40,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:16:40,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [444005514] [2020-10-22 02:16:40,546 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:16:40,548 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:16:40,553 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 34 transitions. [2020-10-22 02:16:40,554 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:16:40,567 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:16:40,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:16:40,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:16:40,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:16:40,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:16:40,569 INFO L87 Difference]: Start difference. First operand 51 states and 97 transitions. Second operand 3 states. [2020-10-22 02:16:40,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:16:40,577 INFO L93 Difference]: Finished difference Result 50 states and 96 transitions. [2020-10-22 02:16:40,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:16:40,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-10-22 02:16:40,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:16:40,578 INFO L225 Difference]: With dead ends: 50 [2020-10-22 02:16:40,578 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:16:40,579 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 02:16:40,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:16:40,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:16:40,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:16:40,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:16:40,580 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-22 02:16:40,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:16:40,580 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:16:40,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:16:40,581 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:16:40,581 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:16:40,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-22 02:16:40,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:16:40 BasicIcfg [2020-10-22 02:16:40,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:16:40,587 INFO L168 Benchmark]: Toolchain (without parser) took 7232.43 ms. Allocated memory was 140.0 MB in the beginning and 288.4 MB in the end (delta: 148.4 MB). Free memory was 100.5 MB in the beginning and 124.1 MB in the end (delta: -23.7 MB). Peak memory consumption was 124.7 MB. Max. memory is 7.1 GB. [2020-10-22 02:16:40,588 INFO L168 Benchmark]: CDTParser took 3.27 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 119.8 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-22 02:16:40,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.18 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 99.2 MB in the beginning and 158.6 MB in the end (delta: -59.4 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-10-22 02:16:40,589 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.92 ms. Allocated memory is still 203.4 MB. Free memory was 158.6 MB in the beginning and 156.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:16:40,590 INFO L168 Benchmark]: Boogie Preprocessor took 28.67 ms. Allocated memory is still 203.4 MB. Free memory was 156.6 MB in the beginning and 154.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-22 02:16:40,591 INFO L168 Benchmark]: RCFGBuilder took 514.33 ms. Allocated memory is still 203.4 MB. Free memory was 154.7 MB in the beginning and 129.4 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-10-22 02:16:40,592 INFO L168 Benchmark]: TraceAbstraction took 5909.49 ms. Allocated memory was 203.4 MB in the beginning and 288.4 MB in the end (delta: 84.9 MB). Free memory was 128.5 MB in the beginning and 124.1 MB in the end (delta: 4.4 MB). Peak memory consumption was 89.3 MB. Max. memory is 7.1 GB. [2020-10-22 02:16:40,596 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.27 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 119.8 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 718.18 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 99.2 MB in the beginning and 158.6 MB in the end (delta: -59.4 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.92 ms. Allocated memory is still 203.4 MB. Free memory was 158.6 MB in the beginning and 156.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.67 ms. Allocated memory is still 203.4 MB. Free memory was 156.6 MB in the beginning and 154.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 514.33 ms. Allocated memory is still 203.4 MB. Free memory was 154.7 MB in the beginning and 129.4 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5909.49 ms. Allocated memory was 203.4 MB in the beginning and 288.4 MB in the end (delta: 84.9 MB). Free memory was 128.5 MB in the beginning and 124.1 MB in the end (delta: 4.4 MB). Peak memory consumption was 89.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1133 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 62 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.1s, 100 PlacesBefore, 38 PlacesAfterwards, 90 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 85 TotalNumberOfCompositions, 4371 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 5 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.7s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 191 SDtfs, 153 SDslu, 277 SDs, 0 SdLazy, 143 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 129 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 121 ConstructedInterpolants, 0 QuantifiedInterpolants, 4785 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...