/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/safe019_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:05:14,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:05:14,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:05:14,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:05:14,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:05:14,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:05:14,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:05:14,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:05:14,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:05:14,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:05:14,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:05:14,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:05:14,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:05:14,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:05:14,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:05:14,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:05:14,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:05:14,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:05:14,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:05:14,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:05:14,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:05:14,670 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:05:14,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:05:14,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:05:14,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-06 01:05:14,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-06 01:05:14,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-06 01:05:14,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-06 01:05:14,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-06 01:05:14,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-06 01:05:14,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:05:14,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:05:14,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:05:14,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:05:14,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:05:14,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:05:14,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:05:14,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:05:14,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:05:14,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:05:14,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:05:14,687 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-06 01:05:14,712 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:05:14,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:05:14,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:05:14,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:05:14,714 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:05:14,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:05:14,714 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:05:14,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:05:14,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:05:14,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:05:14,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:05:14,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:05:14,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:05:14,716 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:05:14,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:05:14,716 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:05:14,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:05:14,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:05:14,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:05:14,717 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:05:14,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:05:14,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:05:14,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:05:14,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:05:14,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:05:14,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:05:14,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:05:14,719 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:05:14,719 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:05:14,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:05:14,719 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:05:15,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:05:15,083 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:05:15,089 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:05:15,091 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:05:15,091 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:05:15,093 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2020-10-06 01:05:15,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f34d22757/8afee80a1b2647b59446e0f95951c799/FLAG3a370aaf5 [2020-10-06 01:05:15,725 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:05:15,726 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2020-10-06 01:05:15,751 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f34d22757/8afee80a1b2647b59446e0f95951c799/FLAG3a370aaf5 [2020-10-06 01:05:15,969 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f34d22757/8afee80a1b2647b59446e0f95951c799 [2020-10-06 01:05:15,980 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:05:15,982 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:05:15,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:05:15,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:05:15,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:05:15,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:05:15" (1/1) ... [2020-10-06 01:05:15,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8f0b39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:15, skipping insertion in model container [2020-10-06 01:05:15,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:05:15" (1/1) ... [2020-10-06 01:05:16,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:05:16,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:05:16,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:05:16,625 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:05:16,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:05:16,746 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:05:16,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16 WrapperNode [2020-10-06 01:05:16,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:05:16,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:05:16,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:05:16,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:05:16,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (1/1) ... [2020-10-06 01:05:16,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (1/1) ... [2020-10-06 01:05:16,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:05:16,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:05:16,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:05:16,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:05:16,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (1/1) ... [2020-10-06 01:05:16,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (1/1) ... [2020-10-06 01:05:16,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (1/1) ... [2020-10-06 01:05:16,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (1/1) ... [2020-10-06 01:05:16,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (1/1) ... [2020-10-06 01:05:16,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (1/1) ... [2020-10-06 01:05:16,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (1/1) ... [2020-10-06 01:05:16,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:05:16,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:05:16,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:05:16,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:05:16,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:05:16,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:05:16,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 01:05:16,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:05:16,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:05:16,907 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 01:05:16,907 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 01:05:16,907 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 01:05:16,907 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 01:05:16,907 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 01:05:16,908 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 01:05:16,908 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-06 01:05:16,908 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-06 01:05:16,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 01:05:16,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:05:16,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:05:16,911 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 01:05:17,310 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:05:17,311 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-06 01:05:17,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:05:17 BoogieIcfgContainer [2020-10-06 01:05:17,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:05:17,315 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:05:17,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:05:17,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:05:17,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:05:15" (1/3) ... [2020-10-06 01:05:17,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2866a6b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:05:17, skipping insertion in model container [2020-10-06 01:05:17,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:05:16" (2/3) ... [2020-10-06 01:05:17,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2866a6b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:05:17, skipping insertion in model container [2020-10-06 01:05:17,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:05:17" (3/3) ... [2020-10-06 01:05:17,323 INFO L109 eAbstractionObserver]: Analyzing ICFG safe019_pso.opt.i [2020-10-06 01:05:17,332 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:05:17,332 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:05:17,339 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-06 01:05:17,340 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:05:17,370 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,371 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,371 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,372 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,372 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,373 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,373 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,373 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,374 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,374 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,374 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,375 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,375 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,375 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,375 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,376 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,376 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,377 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,377 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,377 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,377 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,378 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,378 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,382 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,382 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,383 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,383 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,398 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,398 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,399 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,399 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,401 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,402 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,405 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,405 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,405 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,405 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:05:17,423 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-06 01:05:17,447 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:05:17,447 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:05:17,447 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:05:17,447 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:05:17,447 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:05:17,448 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:05:17,448 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:05:17,449 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:05:17,473 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 81 transitions, 182 flow [2020-10-06 01:05:17,474 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-10-06 01:05:17,523 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-10-06 01:05:17,523 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:05:17,529 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-06 01:05:17,533 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-10-06 01:05:17,560 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-10-06 01:05:17,560 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:05:17,562 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-06 01:05:17,566 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-10-06 01:05:17,567 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:05:19,103 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-10-06 01:05:19,292 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3093 [2020-10-06 01:05:19,292 INFO L214 etLargeBlockEncoding]: Total number of compositions: 65 [2020-10-06 01:05:19,296 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2020-10-06 01:05:19,343 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-06 01:05:19,345 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-06 01:05:19,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:05:19,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:05:19,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:05:19,357 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:05:19,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:05:19,363 INFO L82 PathProgramCache]: Analyzing trace with hash -2005095105, now seen corresponding path program 1 times [2020-10-06 01:05:19,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:05:19,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014250909] [2020-10-06 01:05:19,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:05:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:05:19,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:05:19,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014250909] [2020-10-06 01:05:19,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:05:19,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:05:19,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1607846613] [2020-10-06 01:05:19,645 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:05:19,649 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:05:19,662 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-06 01:05:19,662 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:05:19,667 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:05:19,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:05:19,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:05:19,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:05:19,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:05:19,680 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-06 01:05:19,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:05:19,741 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-06 01:05:19,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:05:19,743 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-06 01:05:19,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:05:19,768 INFO L225 Difference]: With dead ends: 670 [2020-10-06 01:05:19,768 INFO L226 Difference]: Without dead ends: 526 [2020-10-06 01:05:19,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:05:19,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-06 01:05:19,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-06 01:05:19,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-06 01:05:19,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-06 01:05:19,887 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-06 01:05:19,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:05:19,888 INFO L479 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-06 01:05:19,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:05:19,889 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-06 01:05:19,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 01:05:19,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:05:19,893 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:05:19,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:05:19,896 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:05:19,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:05:19,896 INFO L82 PathProgramCache]: Analyzing trace with hash -2027540211, now seen corresponding path program 1 times [2020-10-06 01:05:19,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:05:19,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994185707] [2020-10-06 01:05:19,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:05:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:05:20,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:05:20,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994185707] [2020-10-06 01:05:20,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:05:20,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:05:20,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1392214490] [2020-10-06 01:05:20,053 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:05:20,055 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:05:20,057 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-10-06 01:05:20,058 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:05:20,118 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:05:20,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:05:20,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:05:20,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:05:20,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:05:20,120 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-06 01:05:20,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:05:20,151 INFO L93 Difference]: Finished difference Result 724 states and 2331 transitions. [2020-10-06 01:05:20,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:05:20,152 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-06 01:05:20,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:05:20,157 INFO L225 Difference]: With dead ends: 724 [2020-10-06 01:05:20,158 INFO L226 Difference]: Without dead ends: 412 [2020-10-06 01:05:20,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:05:20,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-10-06 01:05:20,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2020-10-06 01:05:20,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-10-06 01:05:20,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1323 transitions. [2020-10-06 01:05:20,205 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1323 transitions. Word has length 11 [2020-10-06 01:05:20,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:05:20,205 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 1323 transitions. [2020-10-06 01:05:20,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:05:20,206 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1323 transitions. [2020-10-06 01:05:20,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 01:05:20,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:05:20,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:05:20,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:05:20,210 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:05:20,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:05:20,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1543893440, now seen corresponding path program 1 times [2020-10-06 01:05:20,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:05:20,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991051914] [2020-10-06 01:05:20,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:05:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:05:20,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:05:20,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991051914] [2020-10-06 01:05:20,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:05:20,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:05:20,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [561292781] [2020-10-06 01:05:20,257 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:05:20,258 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:05:20,260 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-10-06 01:05:20,260 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:05:20,270 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:05:20,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:05:20,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:05:20,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:05:20,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:05:20,272 INFO L87 Difference]: Start difference. First operand 412 states and 1323 transitions. Second operand 3 states. [2020-10-06 01:05:20,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:05:20,300 INFO L93 Difference]: Finished difference Result 394 states and 1254 transitions. [2020-10-06 01:05:20,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:05:20,300 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-06 01:05:20,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:05:20,304 INFO L225 Difference]: With dead ends: 394 [2020-10-06 01:05:20,304 INFO L226 Difference]: Without dead ends: 394 [2020-10-06 01:05:20,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:05:20,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-06 01:05:20,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-06 01:05:20,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-06 01:05:20,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1254 transitions. [2020-10-06 01:05:20,321 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1254 transitions. Word has length 12 [2020-10-06 01:05:20,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:05:20,321 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 1254 transitions. [2020-10-06 01:05:20,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:05:20,321 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1254 transitions. [2020-10-06 01:05:20,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 01:05:20,324 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:05:20,324 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:05:20,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:05:20,324 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:05:20,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:05:20,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1381595750, now seen corresponding path program 1 times [2020-10-06 01:05:20,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:05:20,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219090324] [2020-10-06 01:05:20,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:05:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:05:20,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:05:20,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219090324] [2020-10-06 01:05:20,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:05:20,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:05:20,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [636671560] [2020-10-06 01:05:20,368 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:05:20,370 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:05:20,373 INFO L258 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions. [2020-10-06 01:05:20,373 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:05:20,409 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:05:20,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:05:20,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:05:20,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:05:20,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:05:20,411 INFO L87 Difference]: Start difference. First operand 394 states and 1254 transitions. Second operand 4 states. [2020-10-06 01:05:20,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:05:20,437 INFO L93 Difference]: Finished difference Result 652 states and 1957 transitions. [2020-10-06 01:05:20,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:05:20,438 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-06 01:05:20,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:05:20,441 INFO L225 Difference]: With dead ends: 652 [2020-10-06 01:05:20,441 INFO L226 Difference]: Without dead ends: 340 [2020-10-06 01:05:20,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:05:20,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-10-06 01:05:20,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 304. [2020-10-06 01:05:20,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-10-06 01:05:20,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 891 transitions. [2020-10-06 01:05:20,458 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 891 transitions. Word has length 13 [2020-10-06 01:05:20,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:05:20,459 INFO L479 AbstractCegarLoop]: Abstraction has 304 states and 891 transitions. [2020-10-06 01:05:20,459 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:05:20,459 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 891 transitions. [2020-10-06 01:05:20,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 01:05:20,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:05:20,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:05:20,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:05:20,461 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:05:20,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:05:20,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1391724752, now seen corresponding path program 1 times [2020-10-06 01:05:20,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:05:20,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580141367] [2020-10-06 01:05:20,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:05:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:05:20,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:05:20,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580141367] [2020-10-06 01:05:20,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:05:20,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:05:20,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [341173112] [2020-10-06 01:05:20,563 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:05:20,565 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:05:20,569 INFO L258 McrAutomatonBuilder]: Finished intersection with 23 states and 33 transitions. [2020-10-06 01:05:20,570 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:05:20,677 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:05:20,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:05:20,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:05:20,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:05:20,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:05:20,678 INFO L87 Difference]: Start difference. First operand 304 states and 891 transitions. Second operand 4 states. [2020-10-06 01:05:20,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:05:20,711 INFO L93 Difference]: Finished difference Result 406 states and 1128 transitions. [2020-10-06 01:05:20,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:05:20,711 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-06 01:05:20,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:05:20,714 INFO L225 Difference]: With dead ends: 406 [2020-10-06 01:05:20,714 INFO L226 Difference]: Without dead ends: 226 [2020-10-06 01:05:20,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:05:20,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-06 01:05:20,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-06 01:05:20,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-06 01:05:20,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 619 transitions. [2020-10-06 01:05:20,724 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 619 transitions. Word has length 13 [2020-10-06 01:05:20,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:05:20,724 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 619 transitions. [2020-10-06 01:05:20,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:05:20,725 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 619 transitions. [2020-10-06 01:05:20,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-06 01:05:20,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:05:20,726 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:05:20,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 01:05:20,726 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:05:20,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:05:20,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1162350155, now seen corresponding path program 1 times [2020-10-06 01:05:20,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:05:20,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858120965] [2020-10-06 01:05:20,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:05:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:05:20,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:05:20,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858120965] [2020-10-06 01:05:20,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:05:20,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:05:20,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1982594629] [2020-10-06 01:05:20,856 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:05:20,859 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:05:20,865 INFO L258 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-10-06 01:05:20,865 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:05:20,903 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:05:20,940 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:05:20,979 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:05:20,989 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:05:20,999 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:05:21,008 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:05:21,019 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:05:21,031 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:05:21,047 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:05:21,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:05:21,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:05:21,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:05:21,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:05:21,048 INFO L87 Difference]: Start difference. First operand 226 states and 619 transitions. Second operand 4 states. [2020-10-06 01:05:21,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:05:21,083 INFO L93 Difference]: Finished difference Result 190 states and 499 transitions. [2020-10-06 01:05:21,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:05:21,084 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-06 01:05:21,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:05:21,084 INFO L225 Difference]: With dead ends: 190 [2020-10-06 01:05:21,084 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:05:21,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:05:21,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:05:21,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:05:21,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:05:21,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:05:21,086 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-06 01:05:21,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:05:21,086 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:05:21,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:05:21,086 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:05:21,086 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:05:21,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 01:05:21,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:05:21 BasicIcfg [2020-10-06 01:05:21,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:05:21,093 INFO L168 Benchmark]: Toolchain (without parser) took 5111.06 ms. Allocated memory was 137.9 MB in the beginning and 251.7 MB in the end (delta: 113.8 MB). Free memory was 100.4 MB in the beginning and 124.0 MB in the end (delta: -23.6 MB). Peak memory consumption was 90.2 MB. Max. memory is 7.1 GB. [2020-10-06 01:05:21,094 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 01:05:21,095 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.87 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 100.2 MB in the beginning and 154.6 MB in the end (delta: -54.4 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-10-06 01:05:21,095 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.21 ms. Allocated memory is still 200.3 MB. Free memory was 154.6 MB in the beginning and 152.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-06 01:05:21,096 INFO L168 Benchmark]: Boogie Preprocessor took 29.80 ms. Allocated memory is still 200.3 MB. Free memory was 152.4 MB in the beginning and 151.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-06 01:05:21,097 INFO L168 Benchmark]: RCFGBuilder took 483.44 ms. Allocated memory is still 200.3 MB. Free memory was 151.0 MB in the beginning and 126.7 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-10-06 01:05:21,098 INFO L168 Benchmark]: TraceAbstraction took 3776.10 ms. Allocated memory was 200.3 MB in the beginning and 251.7 MB in the end (delta: 51.4 MB). Free memory was 126.0 MB in the beginning and 124.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 53.4 MB. Max. memory is 7.1 GB. [2020-10-06 01:05:21,102 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 763.87 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 100.2 MB in the beginning and 154.6 MB in the end (delta: -54.4 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.21 ms. Allocated memory is still 200.3 MB. Free memory was 154.6 MB in the beginning and 152.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.80 ms. Allocated memory is still 200.3 MB. Free memory was 152.4 MB in the beginning and 151.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 483.44 ms. Allocated memory is still 200.3 MB. Free memory was 151.0 MB in the beginning and 126.7 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3776.10 ms. Allocated memory was 200.3 MB in the beginning and 251.7 MB in the end (delta: 51.4 MB). Free memory was 126.0 MB in the beginning and 124.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 53.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 92 ProgramPointsBefore, 38 ProgramPointsAfterwards, 81 TransitionsBefore, 25 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 944 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 3093 CheckedPairsTotal, 65 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 135 SDtfs, 93 SDslu, 156 SDs, 0 SdLazy, 52 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 36 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 2085 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...