/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/safe016_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 00:36:33,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 00:36:33,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 00:36:33,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 00:36:33,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 00:36:33,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 00:36:33,307 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 00:36:33,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 00:36:33,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 00:36:33,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 00:36:33,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 00:36:33,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 00:36:33,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 00:36:33,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 00:36:33,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 00:36:33,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 00:36:33,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 00:36:33,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 00:36:33,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 00:36:33,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 00:36:33,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 00:36:33,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 00:36:33,327 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 00:36:33,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 00:36:33,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 00:36:33,333 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 00:36:33,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 00:36:33,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 00:36:33,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 00:36:33,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 00:36:33,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 00:36:33,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 00:36:33,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 00:36:33,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 00:36:33,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 00:36:33,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 00:36:33,339 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 [2020-10-22 00:36:33,361 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 00:36:33,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 00:36:33,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 00:36:33,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 00:36:33,363 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 00:36:33,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 00:36:33,363 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 00:36:33,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 00:36:33,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 00:36:33,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 00:36:33,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 00:36:33,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 00:36:33,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 00:36:33,364 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 00:36:33,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 00:36:33,365 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 00:36:33,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 00:36:33,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 00:36:33,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 00:36:33,365 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 00:36:33,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 00:36:33,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:36:33,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 00:36:33,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 00:36:33,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 00:36:33,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 00:36:33,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 00:36:33,367 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 00:36:33,367 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 00:36:33,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 00:36:33,368 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 00:36:33,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 00:36:33,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 00:36:33,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 00:36:33,653 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 00:36:33,654 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 00:36:33,655 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2020-10-22 00:36:33,723 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfac4cf94/d82cd67f157e4ccb9fe765d4b483c8fd/FLAG0e8c2c2a2 [2020-10-22 00:36:34,207 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 00:36:34,208 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2020-10-22 00:36:34,240 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfac4cf94/d82cd67f157e4ccb9fe765d4b483c8fd/FLAG0e8c2c2a2 [2020-10-22 00:36:34,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfac4cf94/d82cd67f157e4ccb9fe765d4b483c8fd [2020-10-22 00:36:34,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 00:36:34,517 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 00:36:34,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 00:36:34,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 00:36:34,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 00:36:34,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:36:34" (1/1) ... [2020-10-22 00:36:34,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@250f8393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:36:34, skipping insertion in model container [2020-10-22 00:36:34,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:36:34" (1/1) ... [2020-10-22 00:36:34,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 00:36:34,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 00:36:35,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:36:35,111 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 00:36:35,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:36:35,231 INFO L208 MainTranslator]: Completed translation [2020-10-22 00:36:35,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:36:35 WrapperNode [2020-10-22 00:36:35,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 00:36:35,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 00:36:35,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 00:36:35,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 00:36:35,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:36:35" (1/1) ... [2020-10-22 00:36:35,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:36:35" (1/1) ... [2020-10-22 00:36:35,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 00:36:35,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 00:36:35,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 00:36:35,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 00:36:35,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:36:35" (1/1) ... [2020-10-22 00:36:35,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:36:35" (1/1) ... [2020-10-22 00:36:35,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:36:35" (1/1) ... [2020-10-22 00:36:35,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:36:35" (1/1) ... [2020-10-22 00:36:35,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:36:35" (1/1) ... [2020-10-22 00:36:35,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:36:35" (1/1) ... [2020-10-22 00:36:35,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:36:35" (1/1) ... [2020-10-22 00:36:35,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 00:36:35,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 00:36:35,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 00:36:35,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 00:36:35,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:36:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:36:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 00:36:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 00:36:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 00:36:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 00:36:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 00:36:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 00:36:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 00:36:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 00:36:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 00:36:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 00:36:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-22 00:36:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-22 00:36:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 00:36:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 00:36:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 00:36:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 00:36:35,400 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 00:36:35,808 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 00:36:35,808 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 00:36:35,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:36:35 BoogieIcfgContainer [2020-10-22 00:36:35,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 00:36:35,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 00:36:35,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 00:36:35,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 00:36:35,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 12:36:34" (1/3) ... [2020-10-22 00:36:35,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8fe262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:36:35, skipping insertion in model container [2020-10-22 00:36:35,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:36:35" (2/3) ... [2020-10-22 00:36:35,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8fe262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:36:35, skipping insertion in model container [2020-10-22 00:36:35,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:36:35" (3/3) ... [2020-10-22 00:36:35,818 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_tso.oepc.i [2020-10-22 00:36:35,830 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 00:36:35,830 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 00:36:35,838 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 00:36:35,839 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 00:36:35,868 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,868 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,868 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,869 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,869 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,869 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,870 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,871 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,871 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,871 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,872 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,872 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,872 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,873 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,873 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,873 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,874 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,874 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,874 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,874 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,875 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,875 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,879 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,879 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,880 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,886 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,886 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,886 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,886 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,889 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,889 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,889 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,889 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,891 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,891 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,892 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,892 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:36:35,894 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 00:36:35,907 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-22 00:36:35,927 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:36:35,927 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:36:35,927 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:36:35,928 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:36:35,928 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:36:35,928 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:36:35,928 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:36:35,928 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:36:35,942 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:36:35,943 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 89 transitions, 198 flow [2020-10-22 00:36:35,946 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 89 transitions, 198 flow [2020-10-22 00:36:35,948 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 89 transitions, 198 flow [2020-10-22 00:36:36,000 INFO L129 PetriNetUnfolder]: 3/85 cut-off events. [2020-10-22 00:36:36,000 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 00:36:36,013 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 85 events. 3/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-10-22 00:36:36,019 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-10-22 00:36:37,735 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-22 00:36:37,964 INFO L131 LiptonReduction]: Checked pairs total: 4334 [2020-10-22 00:36:37,964 INFO L133 LiptonReduction]: Total number of compositions: 82 [2020-10-22 00:36:37,971 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-10-22 00:36:38,029 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-22 00:36:38,031 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-22 00:36:38,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 00:36:38,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:36:38,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:36:38,042 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:36:38,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:36:38,048 INFO L82 PathProgramCache]: Analyzing trace with hash -782796091, now seen corresponding path program 1 times [2020-10-22 00:36:38,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:36:38,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163703451] [2020-10-22 00:36:38,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:36:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:36:38,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:36:38,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163703451] [2020-10-22 00:36:38,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:36:38,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 00:36:38,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1429541081] [2020-10-22 00:36:38,288 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:36:38,291 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:36:38,306 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-22 00:36:38,307 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:36:38,311 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:36:38,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:36:38,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:36:38,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:36:38,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:36:38,328 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-22 00:36:38,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:36:38,386 INFO L93 Difference]: Finished difference Result 682 states and 2336 transitions. [2020-10-22 00:36:38,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:36:38,388 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-22 00:36:38,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:36:38,413 INFO L225 Difference]: With dead ends: 682 [2020-10-22 00:36:38,414 INFO L226 Difference]: Without dead ends: 538 [2020-10-22 00:36:38,415 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:36:38,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-10-22 00:36:38,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2020-10-22 00:36:38,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-10-22 00:36:38,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1784 transitions. [2020-10-22 00:36:38,527 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1784 transitions. Word has length 10 [2020-10-22 00:36:38,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:36:38,528 INFO L481 AbstractCegarLoop]: Abstraction has 538 states and 1784 transitions. [2020-10-22 00:36:38,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:36:38,529 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1784 transitions. [2020-10-22 00:36:38,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 00:36:38,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:36:38,534 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:36:38,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 00:36:38,535 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:36:38,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:36:38,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1503123814, now seen corresponding path program 1 times [2020-10-22 00:36:38,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:36:38,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598799089] [2020-10-22 00:36:38,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:36:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:36:38,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:36:38,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598799089] [2020-10-22 00:36:38,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:36:38,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 00:36:38,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [376479789] [2020-10-22 00:36:38,672 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:36:38,673 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:36:38,675 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 21 transitions. [2020-10-22 00:36:38,676 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:36:38,790 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:36:38,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:36:38,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:36:38,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:36:38,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:36:38,793 INFO L87 Difference]: Start difference. First operand 538 states and 1784 transitions. Second operand 3 states. [2020-10-22 00:36:38,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:36:38,805 INFO L93 Difference]: Finished difference Result 508 states and 1665 transitions. [2020-10-22 00:36:38,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:36:38,805 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-22 00:36:38,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:36:38,811 INFO L225 Difference]: With dead ends: 508 [2020-10-22 00:36:38,811 INFO L226 Difference]: Without dead ends: 508 [2020-10-22 00:36:38,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:36:38,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-10-22 00:36:38,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2020-10-22 00:36:38,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2020-10-22 00:36:38,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 1665 transitions. [2020-10-22 00:36:38,845 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 1665 transitions. Word has length 11 [2020-10-22 00:36:38,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:36:38,846 INFO L481 AbstractCegarLoop]: Abstraction has 508 states and 1665 transitions. [2020-10-22 00:36:38,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:36:38,846 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 1665 transitions. [2020-10-22 00:36:38,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 00:36:38,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:36:38,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:36:38,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 00:36:38,849 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:36:38,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:36:38,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1088809907, now seen corresponding path program 1 times [2020-10-22 00:36:38,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:36:38,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372831564] [2020-10-22 00:36:38,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:36:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:36:38,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:36:38,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372831564] [2020-10-22 00:36:38,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:36:38,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:36:38,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [816758776] [2020-10-22 00:36:38,922 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:36:38,923 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:36:38,926 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 24 transitions. [2020-10-22 00:36:38,926 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:36:38,985 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:36:38,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:36:38,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:36:38,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:36:38,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:36:38,987 INFO L87 Difference]: Start difference. First operand 508 states and 1665 transitions. Second operand 4 states. [2020-10-22 00:36:39,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:36:39,020 INFO L93 Difference]: Finished difference Result 748 states and 2407 transitions. [2020-10-22 00:36:39,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 00:36:39,020 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-22 00:36:39,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:36:39,025 INFO L225 Difference]: With dead ends: 748 [2020-10-22 00:36:39,025 INFO L226 Difference]: Without dead ends: 460 [2020-10-22 00:36:39,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:36:39,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-10-22 00:36:39,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2020-10-22 00:36:39,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2020-10-22 00:36:39,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 1467 transitions. [2020-10-22 00:36:39,046 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 1467 transitions. Word has length 12 [2020-10-22 00:36:39,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:36:39,047 INFO L481 AbstractCegarLoop]: Abstraction has 460 states and 1467 transitions. [2020-10-22 00:36:39,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:36:39,047 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 1467 transitions. [2020-10-22 00:36:39,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 00:36:39,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:36:39,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:36:39,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 00:36:39,049 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:36:39,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:36:39,050 INFO L82 PathProgramCache]: Analyzing trace with hash -647802977, now seen corresponding path program 2 times [2020-10-22 00:36:39,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:36:39,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975922093] [2020-10-22 00:36:39,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:36:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:36:39,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:36:39,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975922093] [2020-10-22 00:36:39,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:36:39,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 00:36:39,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1058929790] [2020-10-22 00:36:39,140 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:36:39,142 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:36:39,144 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-10-22 00:36:39,144 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:36:39,235 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:36:39,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:36:39,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:36:39,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:36:39,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:36:39,237 INFO L87 Difference]: Start difference. First operand 460 states and 1467 transitions. Second operand 3 states. [2020-10-22 00:36:39,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:36:39,246 INFO L93 Difference]: Finished difference Result 442 states and 1398 transitions. [2020-10-22 00:36:39,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:36:39,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-22 00:36:39,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:36:39,250 INFO L225 Difference]: With dead ends: 442 [2020-10-22 00:36:39,251 INFO L226 Difference]: Without dead ends: 442 [2020-10-22 00:36:39,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:36:39,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-22 00:36:39,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-10-22 00:36:39,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-22 00:36:39,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 1398 transitions. [2020-10-22 00:36:39,267 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 1398 transitions. Word has length 12 [2020-10-22 00:36:39,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:36:39,267 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 1398 transitions. [2020-10-22 00:36:39,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:36:39,268 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 1398 transitions. [2020-10-22 00:36:39,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 00:36:39,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:36:39,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:36:39,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 00:36:39,269 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:36:39,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:36:39,270 INFO L82 PathProgramCache]: Analyzing trace with hash -912860165, now seen corresponding path program 1 times [2020-10-22 00:36:39,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:36:39,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273600879] [2020-10-22 00:36:39,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:36:39,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:36:39,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:36:39,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273600879] [2020-10-22 00:36:39,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:36:39,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:36:39,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1893435046] [2020-10-22 00:36:39,320 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:36:39,321 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:36:39,325 INFO L252 McrAutomatonBuilder]: Finished intersection with 31 states and 47 transitions. [2020-10-22 00:36:39,325 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:36:39,403 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:36:39,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:36:39,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:36:39,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:36:39,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:36:39,404 INFO L87 Difference]: Start difference. First operand 442 states and 1398 transitions. Second operand 3 states. [2020-10-22 00:36:39,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:36:39,421 INFO L93 Difference]: Finished difference Result 596 states and 1797 transitions. [2020-10-22 00:36:39,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:36:39,421 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-22 00:36:39,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:36:39,425 INFO L225 Difference]: With dead ends: 596 [2020-10-22 00:36:39,425 INFO L226 Difference]: Without dead ends: 460 [2020-10-22 00:36:39,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:36:39,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-10-22 00:36:39,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 424. [2020-10-22 00:36:39,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-10-22 00:36:39,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 1261 transitions. [2020-10-22 00:36:39,441 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 1261 transitions. Word has length 13 [2020-10-22 00:36:39,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:36:39,441 INFO L481 AbstractCegarLoop]: Abstraction has 424 states and 1261 transitions. [2020-10-22 00:36:39,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:36:39,442 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 1261 transitions. [2020-10-22 00:36:39,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 00:36:39,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:36:39,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:36:39,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 00:36:39,443 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:36:39,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:36:39,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1787336884, now seen corresponding path program 1 times [2020-10-22 00:36:39,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:36:39,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704560082] [2020-10-22 00:36:39,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:36:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:36:39,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:36:39,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704560082] [2020-10-22 00:36:39,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:36:39,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:36:39,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2053876672] [2020-10-22 00:36:39,512 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:36:39,514 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:36:39,518 INFO L252 McrAutomatonBuilder]: Finished intersection with 39 states and 71 transitions. [2020-10-22 00:36:39,518 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:36:39,873 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:36:39,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:36:39,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:36:39,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:36:39,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:36:39,875 INFO L87 Difference]: Start difference. First operand 424 states and 1261 transitions. Second operand 4 states. [2020-10-22 00:36:39,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:36:39,906 INFO L93 Difference]: Finished difference Result 566 states and 1628 transitions. [2020-10-22 00:36:39,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 00:36:39,906 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-22 00:36:39,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:36:39,910 INFO L225 Difference]: With dead ends: 566 [2020-10-22 00:36:39,910 INFO L226 Difference]: Without dead ends: 278 [2020-10-22 00:36:39,910 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:36:39,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-22 00:36:39,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-10-22 00:36:39,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-22 00:36:39,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 791 transitions. [2020-10-22 00:36:39,920 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 791 transitions. Word has length 13 [2020-10-22 00:36:39,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:36:39,920 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 791 transitions. [2020-10-22 00:36:39,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:36:39,921 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 791 transitions. [2020-10-22 00:36:39,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 00:36:39,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:36:39,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:36:39,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 00:36:39,922 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:36:39,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:36:39,923 INFO L82 PathProgramCache]: Analyzing trace with hash 238144508, now seen corresponding path program 1 times [2020-10-22 00:36:39,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:36:39,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634251518] [2020-10-22 00:36:39,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:36:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:36:40,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:36:40,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634251518] [2020-10-22 00:36:40,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:36:40,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:36:40,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [605103472] [2020-10-22 00:36:40,015 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:36:40,017 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:36:40,022 INFO L252 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-10-22 00:36:40,022 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:36:40,048 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 00:36:40,078 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 00:36:40,185 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 00:36:40,251 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 00:36:40,290 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [10384#(not (= 4 ~__unbuffered_cnt~0))] [2020-10-22 00:36:40,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:36:40,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:36:40,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:36:40,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:36:40,291 INFO L87 Difference]: Start difference. First operand 278 states and 791 transitions. Second operand 5 states. [2020-10-22 00:36:40,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:36:40,385 INFO L93 Difference]: Finished difference Result 292 states and 753 transitions. [2020-10-22 00:36:40,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 00:36:40,386 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-22 00:36:40,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:36:40,392 INFO L225 Difference]: With dead ends: 292 [2020-10-22 00:36:40,392 INFO L226 Difference]: Without dead ends: 195 [2020-10-22 00:36:40,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:36:40,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-10-22 00:36:40,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2020-10-22 00:36:40,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-10-22 00:36:40,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 465 transitions. [2020-10-22 00:36:40,401 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 465 transitions. Word has length 14 [2020-10-22 00:36:40,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:36:40,401 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 465 transitions. [2020-10-22 00:36:40,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:36:40,402 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 465 transitions. [2020-10-22 00:36:40,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:36:40,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:36:40,403 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:36:40,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 00:36:40,403 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:36:40,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:36:40,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1046603743, now seen corresponding path program 1 times [2020-10-22 00:36:40,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:36:40,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960139448] [2020-10-22 00:36:40,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:36:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:36:40,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:36:40,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960139448] [2020-10-22 00:36:40,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:36:40,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 00:36:40,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1127223135] [2020-10-22 00:36:40,498 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:36:40,500 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:36:40,505 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 62 transitions. [2020-10-22 00:36:40,505 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:36:40,770 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [11077#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 00:36:40,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 00:36:40,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:36:40,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 00:36:40,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:36:40,771 INFO L87 Difference]: Start difference. First operand 195 states and 465 transitions. Second operand 7 states. [2020-10-22 00:36:40,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:36:40,850 INFO L93 Difference]: Finished difference Result 189 states and 428 transitions. [2020-10-22 00:36:40,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 00:36:40,852 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-22 00:36:40,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:36:40,854 INFO L225 Difference]: With dead ends: 189 [2020-10-22 00:36:40,854 INFO L226 Difference]: Without dead ends: 150 [2020-10-22 00:36:40,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-22 00:36:40,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-22 00:36:40,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-10-22 00:36:40,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-22 00:36:40,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 339 transitions. [2020-10-22 00:36:40,859 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 339 transitions. Word has length 16 [2020-10-22 00:36:40,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:36:40,859 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 339 transitions. [2020-10-22 00:36:40,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 00:36:40,860 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 339 transitions. [2020-10-22 00:36:40,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 00:36:40,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:36:40,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:36:40,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 00:36:40,861 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:36:40,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:36:40,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1569359463, now seen corresponding path program 1 times [2020-10-22 00:36:40,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:36:40,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983703278] [2020-10-22 00:36:40,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:36:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:36:40,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:36:40,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983703278] [2020-10-22 00:36:40,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:36:40,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:36:40,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1268490982] [2020-10-22 00:36:40,895 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:36:40,897 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:36:40,902 INFO L252 McrAutomatonBuilder]: Finished intersection with 34 states and 48 transitions. [2020-10-22 00:36:40,902 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:36:40,953 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:36:40,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:36:40,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:36:40,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:36:40,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:36:40,954 INFO L87 Difference]: Start difference. First operand 150 states and 339 transitions. Second operand 4 states. [2020-10-22 00:36:40,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:36:40,971 INFO L93 Difference]: Finished difference Result 182 states and 403 transitions. [2020-10-22 00:36:40,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:36:40,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-22 00:36:40,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:36:40,972 INFO L225 Difference]: With dead ends: 182 [2020-10-22 00:36:40,972 INFO L226 Difference]: Without dead ends: 139 [2020-10-22 00:36:40,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:36:40,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-10-22 00:36:40,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 137. [2020-10-22 00:36:40,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-22 00:36:40,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 301 transitions. [2020-10-22 00:36:40,977 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 301 transitions. Word has length 18 [2020-10-22 00:36:40,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:36:40,977 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 301 transitions. [2020-10-22 00:36:40,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:36:40,977 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 301 transitions. [2020-10-22 00:36:40,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 00:36:40,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:36:40,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:36:40,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-22 00:36:40,979 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:36:40,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:36:40,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1563997083, now seen corresponding path program 2 times [2020-10-22 00:36:40,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:36:40,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78100845] [2020-10-22 00:36:40,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:36:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:36:41,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:36:41,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78100845] [2020-10-22 00:36:41,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:36:41,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-22 00:36:41,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [627676713] [2020-10-22 00:36:41,035 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:36:41,037 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:36:41,043 INFO L252 McrAutomatonBuilder]: Finished intersection with 43 states and 66 transitions. [2020-10-22 00:36:41,043 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:36:41,122 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [12039#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 00:36:41,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-22 00:36:41,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:36:41,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-22 00:36:41,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-22 00:36:41,124 INFO L87 Difference]: Start difference. First operand 137 states and 301 transitions. Second operand 8 states. [2020-10-22 00:36:41,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:36:41,188 INFO L93 Difference]: Finished difference Result 132 states and 289 transitions. [2020-10-22 00:36:41,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:36:41,188 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-10-22 00:36:41,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:36:41,189 INFO L225 Difference]: With dead ends: 132 [2020-10-22 00:36:41,189 INFO L226 Difference]: Without dead ends: 51 [2020-10-22 00:36:41,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-22 00:36:41,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-22 00:36:41,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-22 00:36:41,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-22 00:36:41,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 97 transitions. [2020-10-22 00:36:41,192 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 97 transitions. Word has length 18 [2020-10-22 00:36:41,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:36:41,192 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 97 transitions. [2020-10-22 00:36:41,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-22 00:36:41,193 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 97 transitions. [2020-10-22 00:36:41,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-22 00:36:41,193 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:36:41,193 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:36:41,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-22 00:36:41,194 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:36:41,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:36:41,194 INFO L82 PathProgramCache]: Analyzing trace with hash -299924038, now seen corresponding path program 1 times [2020-10-22 00:36:41,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:36:41,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197479641] [2020-10-22 00:36:41,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:36:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:36:41,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:36:41,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197479641] [2020-10-22 00:36:41,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:36:41,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:36:41,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1808443655] [2020-10-22 00:36:41,219 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:36:41,221 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:36:41,229 INFO L252 McrAutomatonBuilder]: Finished intersection with 52 states and 80 transitions. [2020-10-22 00:36:41,230 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:36:41,252 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:36:41,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:36:41,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:36:41,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:36:41,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:36:41,253 INFO L87 Difference]: Start difference. First operand 51 states and 97 transitions. Second operand 3 states. [2020-10-22 00:36:41,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:36:41,259 INFO L93 Difference]: Finished difference Result 50 states and 96 transitions. [2020-10-22 00:36:41,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:36:41,260 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-10-22 00:36:41,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:36:41,260 INFO L225 Difference]: With dead ends: 50 [2020-10-22 00:36:41,260 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 00:36:41,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:36:41,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 00:36:41,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 00:36:41,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 00:36:41,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 00:36:41,262 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-22 00:36:41,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:36:41,262 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 00:36:41,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:36:41,262 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 00:36:41,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 00:36:41,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-22 00:36:41,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 12:36:41 BasicIcfg [2020-10-22 00:36:41,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 00:36:41,268 INFO L168 Benchmark]: Toolchain (without parser) took 6756.26 ms. Allocated memory was 139.5 MB in the beginning and 287.3 MB in the end (delta: 147.8 MB). Free memory was 100.6 MB in the beginning and 143.5 MB in the end (delta: -42.9 MB). Peak memory consumption was 105.0 MB. Max. memory is 7.1 GB. [2020-10-22 00:36:41,268 INFO L168 Benchmark]: CDTParser took 2.98 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 00:36:41,269 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.53 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 99.8 MB in the beginning and 155.6 MB in the end (delta: -55.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-10-22 00:36:41,270 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.04 ms. Allocated memory is still 202.4 MB. Free memory was 155.6 MB in the beginning and 153.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 00:36:41,271 INFO L168 Benchmark]: Boogie Preprocessor took 28.05 ms. Allocated memory is still 202.4 MB. Free memory was 153.6 MB in the beginning and 152.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-22 00:36:41,271 INFO L168 Benchmark]: RCFGBuilder took 489.72 ms. Allocated memory is still 202.4 MB. Free memory was 152.2 MB in the beginning and 125.9 MB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2020-10-22 00:36:41,272 INFO L168 Benchmark]: TraceAbstraction took 5455.02 ms. Allocated memory was 202.4 MB in the beginning and 287.3 MB in the end (delta: 84.9 MB). Free memory was 125.9 MB in the beginning and 143.5 MB in the end (delta: -17.6 MB). Peak memory consumption was 67.3 MB. Max. memory is 7.1 GB. [2020-10-22 00:36:41,276 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.98 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 714.53 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 99.8 MB in the beginning and 155.6 MB in the end (delta: -55.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.04 ms. Allocated memory is still 202.4 MB. Free memory was 155.6 MB in the beginning and 153.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.05 ms. Allocated memory is still 202.4 MB. Free memory was 153.6 MB in the beginning and 152.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 489.72 ms. Allocated memory is still 202.4 MB. Free memory was 152.2 MB in the beginning and 125.9 MB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5455.02 ms. Allocated memory was 202.4 MB in the beginning and 287.3 MB in the end (delta: 84.9 MB). Free memory was 125.9 MB in the beginning and 143.5 MB in the end (delta: -17.6 MB). Peak memory consumption was 67.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1132 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 64 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.0s, 99 PlacesBefore, 38 PlacesAfterwards, 89 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 82 TotalNumberOfCompositions, 4334 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.3s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 240 SDtfs, 181 SDslu, 323 SDs, 0 SdLazy, 178 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 38 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 157 NumberOfCodeBlocks, 157 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 5504 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...