/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-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe029_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:10:48,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:10:48,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:10:49,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:10:49,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:10:49,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:10:49,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:10:49,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:10:49,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:10:49,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:10:49,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:10:49,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:10:49,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:10:49,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:10:49,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:10:49,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:10:49,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:10:49,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:10:49,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:10:49,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:10:49,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:10:49,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:10:49,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:10:49,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:10:49,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 01:10:49,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:10:49,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:10:49,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:10:49,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:10:49,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:10:49,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:10:49,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:10:49,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:10:49,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:10:49,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:10:49,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:10:49,108 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-WP.epf [2020-10-06 01:10:49,131 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:10:49,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:10:49,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:10:49,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:10:49,133 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:10:49,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:10:49,133 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:10:49,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:10:49,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:10:49,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:10:49,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:10:49,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:10:49,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:10:49,135 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:10:49,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:10:49,135 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:10:49,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:10:49,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:10:49,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:10:49,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:10:49,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:10:49,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:10:49,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:10:49,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:10:49,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:10:49,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:10:49,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:10:49,137 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:10:49,138 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:10:49,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:10:49,138 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:10:49,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:10:49,465 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:10:49,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:10:49,471 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:10:49,478 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:10:49,480 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_power.opt.i [2020-10-06 01:10:49,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f348b4339/f09ce7db35344be29fa7e9906989d967/FLAG684b1dc9f [2020-10-06 01:10:50,095 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:10:50,096 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_power.opt.i [2020-10-06 01:10:50,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f348b4339/f09ce7db35344be29fa7e9906989d967/FLAG684b1dc9f [2020-10-06 01:10:50,305 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f348b4339/f09ce7db35344be29fa7e9906989d967 [2020-10-06 01:10:50,316 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:10:50,318 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:10:50,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:10:50,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:10:50,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:10:50,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:10:50" (1/1) ... [2020-10-06 01:10:50,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b425f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:50, skipping insertion in model container [2020-10-06 01:10:50,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:10:50" (1/1) ... [2020-10-06 01:10:50,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:10:50,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:10:50,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:10:50,899 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:10:50,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:10:51,059 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:10:51,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:51 WrapperNode [2020-10-06 01:10:51,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:10:51,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:10:51,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:10:51,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:10:51,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:51" (1/1) ... [2020-10-06 01:10:51,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:51" (1/1) ... [2020-10-06 01:10:51,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:10:51,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:10:51,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:10:51,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:10:51,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:51" (1/1) ... [2020-10-06 01:10:51,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:51" (1/1) ... [2020-10-06 01:10:51,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:51" (1/1) ... [2020-10-06 01:10:51,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:51" (1/1) ... [2020-10-06 01:10:51,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:51" (1/1) ... [2020-10-06 01:10:51,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:51" (1/1) ... [2020-10-06 01:10:51,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:51" (1/1) ... [2020-10-06 01:10:51,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:10:51,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:10:51,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:10:51,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:10:51,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:51" (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 [2020-10-06 01:10:51,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:10:51,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 01:10:51,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:10:51,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:10:51,249 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 01:10:51,249 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 01:10:51,250 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 01:10:51,250 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 01:10:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 01:10:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:10:51,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:10:51,254 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 01:10:53,255 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:10:53,255 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-06 01:10:53,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:10:53 BoogieIcfgContainer [2020-10-06 01:10:53,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:10:53,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:10:53,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:10:53,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:10:53,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:10:50" (1/3) ... [2020-10-06 01:10:53,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f11ab4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:10:53, skipping insertion in model container [2020-10-06 01:10:53,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:10:51" (2/3) ... [2020-10-06 01:10:53,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f11ab4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:10:53, skipping insertion in model container [2020-10-06 01:10:53,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:10:53" (3/3) ... [2020-10-06 01:10:53,267 INFO L109 eAbstractionObserver]: Analyzing ICFG safe029_power.opt.i [2020-10-06 01:10:53,278 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:10:53,278 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:10:53,286 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-06 01:10:53,287 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:10:53,315 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,316 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,316 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,316 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,317 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,317 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,317 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,318 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,318 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,318 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,318 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,319 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,319 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,320 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,320 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,320 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,320 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,321 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,321 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,321 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,321 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,322 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,322 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,322 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,322 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,323 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,323 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,323 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,323 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,324 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,328 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,328 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,328 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,328 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,330 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,330 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,333 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,333 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,333 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:10:53,352 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-06 01:10:53,373 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:10:53,374 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:10:53,374 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:10:53,374 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:10:53,374 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:10:53,374 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:10:53,374 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:10:53,375 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:10:53,389 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 74 transitions, 158 flow [2020-10-06 01:10:53,392 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 74 transitions, 158 flow [2020-10-06 01:10:53,433 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2020-10-06 01:10:53,433 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:10:53,438 INFO L80 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2020-10-06 01:10:53,441 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 74 transitions, 158 flow [2020-10-06 01:10:53,461 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2020-10-06 01:10:53,461 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:10:53,462 INFO L80 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2020-10-06 01:10:53,463 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 888 [2020-10-06 01:10:53,465 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:10:54,015 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-06 01:10:55,961 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 224 DAG size of output: 184 [2020-10-06 01:10:56,000 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 2, 2, 1] term [2020-10-06 01:10:56,001 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 01:10:56,005 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 1] term [2020-10-06 01:10:56,006 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 01:10:57,056 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 139 DAG size of output: 119 [2020-10-06 01:10:58,041 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 115 [2020-10-06 01:10:58,370 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-06 01:10:58,930 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 106 [2020-10-06 01:10:59,192 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-06 01:10:59,719 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-06 01:11:00,031 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-06 01:11:00,467 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-10-06 01:11:00,573 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-06 01:11:00,578 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2209 [2020-10-06 01:11:00,578 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-10-06 01:11:00,581 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 19 transitions, 48 flow [2020-10-06 01:11:00,597 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 162 states. [2020-10-06 01:11:00,600 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2020-10-06 01:11:00,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-06 01:11:00,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:00,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-06 01:11:00,607 INFO L427 AbstractCegarLoop]: === Iteration 1 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:00,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:00,613 INFO L82 PathProgramCache]: Analyzing trace with hash 859717262, now seen corresponding path program 1 times [2020-10-06 01:11:00,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:00,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495108012] [2020-10-06 01:11:00,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:00,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:00,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495108012] [2020-10-06 01:11:00,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:00,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:11:00,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1975805866] [2020-10-06 01:11:00,878 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:00,881 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:00,894 INFO L258 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-10-06 01:11:00,894 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:00,899 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:00,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:11:00,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:00,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:11:00,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:11:00,914 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 3 states. [2020-10-06 01:11:00,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:00,989 INFO L93 Difference]: Finished difference Result 137 states and 320 transitions. [2020-10-06 01:11:00,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:11:00,992 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-06 01:11:00,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:01,003 INFO L225 Difference]: With dead ends: 137 [2020-10-06 01:11:01,004 INFO L226 Difference]: Without dead ends: 112 [2020-10-06 01:11:01,006 INFO L675 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 [2020-10-06 01:11:01,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-06 01:11:01,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-06 01:11:01,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-06 01:11:01,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-10-06 01:11:01,059 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 5 [2020-10-06 01:11:01,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:01,060 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-10-06 01:11:01,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:11:01,060 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-10-06 01:11:01,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-06 01:11:01,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:01,061 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:01,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:11:01,062 INFO L427 AbstractCegarLoop]: === Iteration 2 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:01,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:01,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1554625103, now seen corresponding path program 1 times [2020-10-06 01:11:01,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:01,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238857846] [2020-10-06 01:11:01,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:01,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:01,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238857846] [2020-10-06 01:11:01,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:01,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:11:01,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [478499655] [2020-10-06 01:11:01,274 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:01,275 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:01,277 INFO L258 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-06 01:11:01,277 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:01,278 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:01,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:11:01,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:01,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:11:01,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:11:01,281 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 3 states. [2020-10-06 01:11:01,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:01,313 INFO L93 Difference]: Finished difference Result 111 states and 252 transitions. [2020-10-06 01:11:01,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:11:01,314 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-06 01:11:01,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:01,316 INFO L225 Difference]: With dead ends: 111 [2020-10-06 01:11:01,316 INFO L226 Difference]: Without dead ends: 111 [2020-10-06 01:11:01,317 INFO L675 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 [2020-10-06 01:11:01,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-06 01:11:01,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-10-06 01:11:01,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-06 01:11:01,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 252 transitions. [2020-10-06 01:11:01,329 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 252 transitions. Word has length 7 [2020-10-06 01:11:01,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:01,330 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 252 transitions. [2020-10-06 01:11:01,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:11:01,330 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 252 transitions. [2020-10-06 01:11:01,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-06 01:11:01,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:01,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:01,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:11:01,332 INFO L427 AbstractCegarLoop]: === Iteration 3 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:01,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:01,332 INFO L82 PathProgramCache]: Analyzing trace with hash 948719512, now seen corresponding path program 1 times [2020-10-06 01:11:01,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:01,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906488159] [2020-10-06 01:11:01,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:01,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:01,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906488159] [2020-10-06 01:11:01,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:01,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:11:01,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1734110342] [2020-10-06 01:11:01,424 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:01,425 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:01,428 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 10 transitions. [2020-10-06 01:11:01,428 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:01,460 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:01,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:11:01,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:01,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:11:01,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:11:01,462 INFO L87 Difference]: Start difference. First operand 111 states and 252 transitions. Second operand 3 states. [2020-10-06 01:11:01,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:01,482 INFO L93 Difference]: Finished difference Result 110 states and 249 transitions. [2020-10-06 01:11:01,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:11:01,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-06 01:11:01,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:01,486 INFO L225 Difference]: With dead ends: 110 [2020-10-06 01:11:01,486 INFO L226 Difference]: Without dead ends: 110 [2020-10-06 01:11:01,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:11:01,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-06 01:11:01,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-10-06 01:11:01,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-06 01:11:01,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 249 transitions. [2020-10-06 01:11:01,511 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 249 transitions. Word has length 8 [2020-10-06 01:11:01,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:01,511 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 249 transitions. [2020-10-06 01:11:01,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:11:01,511 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 249 transitions. [2020-10-06 01:11:01,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-06 01:11:01,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:01,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:01,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:11:01,513 INFO L427 AbstractCegarLoop]: === Iteration 4 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:01,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:01,515 INFO L82 PathProgramCache]: Analyzing trace with hash 948737399, now seen corresponding path program 1 times [2020-10-06 01:11:01,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:01,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510054754] [2020-10-06 01:11:01,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:01,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:01,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510054754] [2020-10-06 01:11:01,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:01,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:11:01,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [506773981] [2020-10-06 01:11:01,639 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:01,640 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:01,642 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 16 transitions. [2020-10-06 01:11:01,643 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:01,654 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-10-06 01:11:01,654 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:01,657 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 3, 3, 2, 1] term [2020-10-06 01:11:01,658 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:01,659 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 3, 1] term [2020-10-06 01:11:01,659 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:01,662 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 01:11:01,704 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:01,706 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:01,717 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:01,734 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:01,738 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:01,864 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1443#(and (or (and (not (= (mod ~x$r_buff0_thd0~0 256) 0)) (not (= (mod ~x$w_buff0_used~0 256) 0))) (= ~x~0 ~x$w_buff0~0)) (or (and (= ~x$w_buff1~0 ~x$w_buff0~0) (= ~x$w_buff0_used~0 0)) (and (not (= (mod ~x$r_buff0_thd0~0 256) 0)) (not (= (mod ~x$w_buff0_used~0 256) 0)))) (= 0 ~x$w_buff0~0))] [2020-10-06 01:11:01,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:11:01,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:01,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:11:01,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:01,865 INFO L87 Difference]: Start difference. First operand 110 states and 249 transitions. Second operand 5 states. [2020-10-06 01:11:01,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:01,934 INFO L93 Difference]: Finished difference Result 109 states and 246 transitions. [2020-10-06 01:11:01,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:11:01,935 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-10-06 01:11:01,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:01,936 INFO L225 Difference]: With dead ends: 109 [2020-10-06 01:11:01,936 INFO L226 Difference]: Without dead ends: 109 [2020-10-06 01:11:01,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:01,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-06 01:11:01,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-06 01:11:01,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-06 01:11:01,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 246 transitions. [2020-10-06 01:11:01,946 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 246 transitions. Word has length 8 [2020-10-06 01:11:01,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:01,946 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 246 transitions. [2020-10-06 01:11:01,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:11:01,946 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 246 transitions. [2020-10-06 01:11:01,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:11:01,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:01,947 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:01,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:11:01,948 INFO L427 AbstractCegarLoop]: === Iteration 5 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:01,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:01,948 INFO L82 PathProgramCache]: Analyzing trace with hash -654518260, now seen corresponding path program 1 times [2020-10-06 01:11:01,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:01,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430304336] [2020-10-06 01:11:01,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:02,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:02,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430304336] [2020-10-06 01:11:02,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:02,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:11:02,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1997167012] [2020-10-06 01:11:02,003 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:02,005 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:02,007 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-10-06 01:11:02,007 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:02,013 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:02,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:11:02,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:02,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:11:02,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:11:02,015 INFO L87 Difference]: Start difference. First operand 109 states and 246 transitions. Second operand 3 states. [2020-10-06 01:11:02,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:02,037 INFO L93 Difference]: Finished difference Result 154 states and 330 transitions. [2020-10-06 01:11:02,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:11:02,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-06 01:11:02,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:02,040 INFO L225 Difference]: With dead ends: 154 [2020-10-06 01:11:02,040 INFO L226 Difference]: Without dead ends: 118 [2020-10-06 01:11:02,040 INFO L675 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 [2020-10-06 01:11:02,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-06 01:11:02,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2020-10-06 01:11:02,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-06 01:11:02,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 226 transitions. [2020-10-06 01:11:02,058 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 226 transitions. Word has length 9 [2020-10-06 01:11:02,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:02,059 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 226 transitions. [2020-10-06 01:11:02,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:11:02,062 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 226 transitions. [2020-10-06 01:11:02,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:11:02,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:02,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:02,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 01:11:02,064 INFO L427 AbstractCegarLoop]: === Iteration 6 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:02,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:02,064 INFO L82 PathProgramCache]: Analyzing trace with hash -654466738, now seen corresponding path program 1 times [2020-10-06 01:11:02,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:02,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801557614] [2020-10-06 01:11:02,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:02,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:02,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:02,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801557614] [2020-10-06 01:11:02,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:02,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:11:02,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [578978624] [2020-10-06 01:11:02,210 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:02,211 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:02,214 INFO L258 McrAutomatonBuilder]: Finished intersection with 17 states and 24 transitions. [2020-10-06 01:11:02,214 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:02,227 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 3, 2, 1] term [2020-10-06 01:11:02,228 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:02,229 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-10-06 01:11:02,229 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:02,231 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:02,238 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 01:11:02,246 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:02,251 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:02,257 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:02,260 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 01:11:02,268 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:02,321 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:02,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:11:02,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:02,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:11:02,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:02,322 INFO L87 Difference]: Start difference. First operand 106 states and 226 transitions. Second operand 5 states. [2020-10-06 01:11:02,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:02,398 INFO L93 Difference]: Finished difference Result 104 states and 220 transitions. [2020-10-06 01:11:02,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:11:02,399 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-06 01:11:02,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:02,400 INFO L225 Difference]: With dead ends: 104 [2020-10-06 01:11:02,400 INFO L226 Difference]: Without dead ends: 104 [2020-10-06 01:11:02,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-06 01:11:02,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-06 01:11:02,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-10-06 01:11:02,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-06 01:11:02,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 220 transitions. [2020-10-06 01:11:02,408 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 220 transitions. Word has length 9 [2020-10-06 01:11:02,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:02,408 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 220 transitions. [2020-10-06 01:11:02,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:11:02,409 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 220 transitions. [2020-10-06 01:11:02,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:11:02,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:02,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:02,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 01:11:02,410 INFO L427 AbstractCegarLoop]: === Iteration 7 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:02,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:02,410 INFO L82 PathProgramCache]: Analyzing trace with hash -653912861, now seen corresponding path program 1 times [2020-10-06 01:11:02,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:02,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236649557] [2020-10-06 01:11:02,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:02,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:02,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236649557] [2020-10-06 01:11:02,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:02,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:11:02,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [745420484] [2020-10-06 01:11:02,471 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:02,472 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:02,475 INFO L258 McrAutomatonBuilder]: Finished intersection with 14 states and 17 transitions. [2020-10-06 01:11:02,475 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:02,489 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:02,521 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:02,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:11:02,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:02,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:11:02,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:11:02,522 INFO L87 Difference]: Start difference. First operand 104 states and 220 transitions. Second operand 4 states. [2020-10-06 01:11:02,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:02,573 INFO L93 Difference]: Finished difference Result 105 states and 222 transitions. [2020-10-06 01:11:02,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:11:02,574 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-06 01:11:02,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:02,577 INFO L225 Difference]: With dead ends: 105 [2020-10-06 01:11:02,577 INFO L226 Difference]: Without dead ends: 105 [2020-10-06 01:11:02,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:11:02,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-06 01:11:02,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-10-06 01:11:02,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-06 01:11:02,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 222 transitions. [2020-10-06 01:11:02,584 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 222 transitions. Word has length 9 [2020-10-06 01:11:02,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:02,585 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 222 transitions. [2020-10-06 01:11:02,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:11:02,585 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 222 transitions. [2020-10-06 01:11:02,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:11:02,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:02,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:02,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 01:11:02,586 INFO L427 AbstractCegarLoop]: === Iteration 8 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:02,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:02,587 INFO L82 PathProgramCache]: Analyzing trace with hash -655211141, now seen corresponding path program 2 times [2020-10-06 01:11:02,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:02,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916647507] [2020-10-06 01:11:02,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:02,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:02,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916647507] [2020-10-06 01:11:02,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:02,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:11:02,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [538358830] [2020-10-06 01:11:02,658 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:02,659 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:02,661 INFO L258 McrAutomatonBuilder]: Finished intersection with 16 states and 21 transitions. [2020-10-06 01:11:02,661 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:02,682 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:02,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:11:02,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:02,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:11:02,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:02,684 INFO L87 Difference]: Start difference. First operand 105 states and 222 transitions. Second operand 5 states. [2020-10-06 01:11:02,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:02,754 INFO L93 Difference]: Finished difference Result 102 states and 214 transitions. [2020-10-06 01:11:02,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:11:02,755 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-06 01:11:02,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:02,757 INFO L225 Difference]: With dead ends: 102 [2020-10-06 01:11:02,757 INFO L226 Difference]: Without dead ends: 102 [2020-10-06 01:11:02,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-06 01:11:02,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-06 01:11:02,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2020-10-06 01:11:02,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-06 01:11:02,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 212 transitions. [2020-10-06 01:11:02,762 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 212 transitions. Word has length 9 [2020-10-06 01:11:02,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:02,763 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 212 transitions. [2020-10-06 01:11:02,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:11:02,763 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 212 transitions. [2020-10-06 01:11:02,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:11:02,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:02,764 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:02,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-06 01:11:02,765 INFO L427 AbstractCegarLoop]: === Iteration 9 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:02,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:02,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1186366444, now seen corresponding path program 1 times [2020-10-06 01:11:02,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:02,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216943948] [2020-10-06 01:11:02,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:02,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:02,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216943948] [2020-10-06 01:11:02,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:02,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:11:02,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1314226385] [2020-10-06 01:11:02,839 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:02,841 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:02,845 INFO L258 McrAutomatonBuilder]: Finished intersection with 18 states and 25 transitions. [2020-10-06 01:11:02,845 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:02,855 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:02,858 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 01:11:02,864 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 01:11:02,870 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 01:11:02,877 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-10-06 01:11:02,922 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:11:02,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:11:02,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:02,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:11:02,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:02,923 INFO L87 Difference]: Start difference. First operand 101 states and 212 transitions. Second operand 5 states. [2020-10-06 01:11:03,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:03,051 INFO L93 Difference]: Finished difference Result 112 states and 233 transitions. [2020-10-06 01:11:03,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:11:03,052 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-06 01:11:03,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:03,053 INFO L225 Difference]: With dead ends: 112 [2020-10-06 01:11:03,053 INFO L226 Difference]: Without dead ends: 112 [2020-10-06 01:11:03,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:11:03,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-06 01:11:03,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 106. [2020-10-06 01:11:03,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-06 01:11:03,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 220 transitions. [2020-10-06 01:11:03,059 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 220 transitions. Word has length 10 [2020-10-06 01:11:03,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:03,059 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 220 transitions. [2020-10-06 01:11:03,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:11:03,059 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 220 transitions. [2020-10-06 01:11:03,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:11:03,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:03,060 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:03,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-06 01:11:03,061 INFO L427 AbstractCegarLoop]: === Iteration 10 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:03,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:03,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1185068164, now seen corresponding path program 2 times [2020-10-06 01:11:03,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:03,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813055686] [2020-10-06 01:11:03,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:03,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:03,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813055686] [2020-10-06 01:11:03,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:03,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-06 01:11:03,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1010878138] [2020-10-06 01:11:03,153 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:03,155 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:03,158 INFO L258 McrAutomatonBuilder]: Finished intersection with 22 states and 34 transitions. [2020-10-06 01:11:03,159 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:03,226 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3428#(and (= ~x~0 1) (= 0 ~x$r_buff0_thd0~0) (= 0 ~x$w_buff0~0))] [2020-10-06 01:11:03,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-06 01:11:03,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:03,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-06 01:11:03,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:11:03,227 INFO L87 Difference]: Start difference. First operand 106 states and 220 transitions. Second operand 7 states. [2020-10-06 01:11:03,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:03,366 INFO L93 Difference]: Finished difference Result 112 states and 230 transitions. [2020-10-06 01:11:03,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:11:03,367 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2020-10-06 01:11:03,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:03,368 INFO L225 Difference]: With dead ends: 112 [2020-10-06 01:11:03,368 INFO L226 Difference]: Without dead ends: 112 [2020-10-06 01:11:03,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-06 01:11:03,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-06 01:11:03,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 105. [2020-10-06 01:11:03,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-06 01:11:03,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 219 transitions. [2020-10-06 01:11:03,373 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 219 transitions. Word has length 10 [2020-10-06 01:11:03,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:03,373 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 219 transitions. [2020-10-06 01:11:03,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-06 01:11:03,373 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 219 transitions. [2020-10-06 01:11:03,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 01:11:03,374 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:11:03,374 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:11:03,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-06 01:11:03,374 INFO L427 AbstractCegarLoop]: === Iteration 11 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:11:03,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:11:03,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1928407251, now seen corresponding path program 1 times [2020-10-06 01:11:03,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:11:03,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159507191] [2020-10-06 01:11:03,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:11:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:11:03,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:11:03,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159507191] [2020-10-06 01:11:03,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:11:03,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:11:03,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1453693311] [2020-10-06 01:11:03,441 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:11:03,443 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:11:03,447 INFO L258 McrAutomatonBuilder]: Finished intersection with 25 states and 38 transitions. [2020-10-06 01:11:03,447 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:11:03,465 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:03,476 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:03,484 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:03,491 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:03,504 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:11:03,507 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3759#(not (= 2 ~__unbuffered_cnt~0))] [2020-10-06 01:11:03,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:11:03,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:11:03,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:11:03,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:11:03,509 INFO L87 Difference]: Start difference. First operand 105 states and 219 transitions. Second operand 5 states. [2020-10-06 01:11:03,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:11:03,551 INFO L93 Difference]: Finished difference Result 66 states and 125 transitions. [2020-10-06 01:11:03,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-06 01:11:03,552 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-06 01:11:03,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:11:03,552 INFO L225 Difference]: With dead ends: 66 [2020-10-06 01:11:03,552 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:11:03,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:11:03,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:11:03,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:11:03,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:11:03,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:11:03,554 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-10-06 01:11:03,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:11:03,554 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:11:03,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:11:03,554 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:11:03,554 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:11:03,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-06 01:11:03,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:11:03 BasicIcfg [2020-10-06 01:11:03,559 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:11:03,560 INFO L168 Benchmark]: Toolchain (without parser) took 13243.22 ms. Allocated memory was 140.0 MB in the beginning and 348.1 MB in the end (delta: 208.1 MB). Free memory was 101.9 MB in the beginning and 239.5 MB in the end (delta: -137.6 MB). Peak memory consumption was 70.5 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:03,561 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 01:11:03,562 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.26 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.7 MB in the beginning and 158.2 MB in the end (delta: -56.5 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:03,563 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.03 ms. Allocated memory is still 203.9 MB. Free memory was 158.2 MB in the beginning and 155.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:03,564 INFO L168 Benchmark]: Boogie Preprocessor took 35.82 ms. Allocated memory is still 203.9 MB. Free memory was 155.5 MB in the beginning and 152.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:03,564 INFO L168 Benchmark]: RCFGBuilder took 2095.48 ms. Allocated memory was 203.9 MB in the beginning and 248.5 MB in the end (delta: 44.6 MB). Free memory was 152.8 MB in the beginning and 198.1 MB in the end (delta: -45.3 MB). Peak memory consumption was 104.9 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:03,565 INFO L168 Benchmark]: TraceAbstraction took 10299.78 ms. Allocated memory was 248.5 MB in the beginning and 348.1 MB in the end (delta: 99.6 MB). Free memory was 198.1 MB in the beginning and 239.5 MB in the end (delta: -41.4 MB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. [2020-10-06 01:11:03,569 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 741.26 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.7 MB in the beginning and 158.2 MB in the end (delta: -56.5 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 65.03 ms. Allocated memory is still 203.9 MB. Free memory was 158.2 MB in the beginning and 155.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.82 ms. Allocated memory is still 203.9 MB. Free memory was 155.5 MB in the beginning and 152.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2095.48 ms. Allocated memory was 203.9 MB in the beginning and 248.5 MB in the end (delta: 44.6 MB). Free memory was 152.8 MB in the beginning and 198.1 MB in the end (delta: -45.3 MB). Peak memory consumption was 104.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10299.78 ms. Allocated memory was 248.5 MB in the beginning and 348.1 MB in the end (delta: 99.6 MB). Free memory was 198.1 MB in the beginning and 239.5 MB in the end (delta: -41.4 MB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 7.1s, 79 ProgramPointsBefore, 26 ProgramPointsAfterwards, 74 TransitionsBefore, 19 TransitionsAfterwards, 888 CoEnabledTransitionPairs, 7 FixpointIterations, 27 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 460 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2209 CheckedPairsTotal, 63 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 73 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.1s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.2s, HoareTripleCheckerStatistics: 158 SDtfs, 97 SDslu, 165 SDs, 0 SdLazy, 175 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred 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, 11 MinimizatonAttempts, 26 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 4943 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...