/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/safe030_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:47:01,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:47:01,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:47:01,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:47:01,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:47:01,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:47:01,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:47:01,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:47:01,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:47:01,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:47:01,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:47:01,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:47:01,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:47:01,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:47:01,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:47:01,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:47:01,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:47:01,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:47:01,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:47:01,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:47:01,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:47:01,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:47:01,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:47:01,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:47:01,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:47:01,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:47:01,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:47:01,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:47:01,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:47:01,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:47:01,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:47:01,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:47:01,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:47:01,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:47:01,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:47:01,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:47:01,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:47:01,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:47:01,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:47:01,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:47:01,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:47:01,656 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 13:47:01,679 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:47:01,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:47:01,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:47:01,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:47:01,681 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:47:01,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:47:01,681 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:47:01,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:47:01,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:47:01,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:47:01,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:47:01,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:47:01,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:47:01,683 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:47:01,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:47:01,683 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:47:01,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:47:01,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:47:01,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:47:01,684 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:47:01,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:47:01,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:47:01,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:47:01,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:47:01,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:47:01,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:47:01,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:47:01,685 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:47:01,686 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:47:01,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:47:01,686 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:47:01,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:47:02,008 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:47:02,013 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:47:02,014 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:47:02,016 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:47:02,018 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2020-10-16 13:47:02,097 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ecbecd26/240d641cd86846c0ac3ff95ceaa522d0/FLAG2ff1d6e52 [2020-10-16 13:47:02,572 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:47:02,573 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2020-10-16 13:47:02,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ecbecd26/240d641cd86846c0ac3ff95ceaa522d0/FLAG2ff1d6e52 [2020-10-16 13:47:02,932 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ecbecd26/240d641cd86846c0ac3ff95ceaa522d0 [2020-10-16 13:47:02,940 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:47:02,942 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:47:02,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:47:02,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:47:02,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:47:02,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:47:02" (1/1) ... [2020-10-16 13:47:02,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87aaa20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:02, skipping insertion in model container [2020-10-16 13:47:02,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:47:02" (1/1) ... [2020-10-16 13:47:02,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:47:03,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:47:03,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:47:03,550 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:47:03,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:47:03,702 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:47:03,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:03 WrapperNode [2020-10-16 13:47:03,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:47:03,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:47:03,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:47:03,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:47:03,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:03" (1/1) ... [2020-10-16 13:47:03,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:03" (1/1) ... [2020-10-16 13:47:03,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:47:03,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:47:03,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:47:03,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:47:03,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:03" (1/1) ... [2020-10-16 13:47:03,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:03" (1/1) ... [2020-10-16 13:47:03,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:03" (1/1) ... [2020-10-16 13:47:03,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:03" (1/1) ... [2020-10-16 13:47:03,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:03" (1/1) ... [2020-10-16 13:47:03,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:03" (1/1) ... [2020-10-16 13:47:03,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:03" (1/1) ... [2020-10-16 13:47:03,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:47:03,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:47:03,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:47:03,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:47:03,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 13:47:03,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:47:03,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:47:03,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:47:03,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:47:03,868 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:47:03,868 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:47:03,869 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:47:03,869 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:47:03,869 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:47:03,869 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:47:03,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:47:03,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:47:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:47:03,872 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:47:04,444 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:47:04,445 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:47:04,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:47:04 BoogieIcfgContainer [2020-10-16 13:47:04,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:47:04,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:47:04,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:47:04,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:47:04,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:47:02" (1/3) ... [2020-10-16 13:47:04,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c5b3a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:47:04, skipping insertion in model container [2020-10-16 13:47:04,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:03" (2/3) ... [2020-10-16 13:47:04,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c5b3a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:47:04, skipping insertion in model container [2020-10-16 13:47:04,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:47:04" (3/3) ... [2020-10-16 13:47:04,463 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.oepc.i [2020-10-16 13:47:04,476 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:47:04,477 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:47:04,485 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:47:04,486 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:47:04,514 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,514 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,515 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,515 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,516 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,516 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,517 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,517 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,517 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,517 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,519 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,519 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,519 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,519 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,520 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,520 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,524 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,524 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,525 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,525 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,534 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,535 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,535 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,538 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,538 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,538 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,539 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:47:04,541 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:47:04,557 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 13:47:04,579 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:47:04,580 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:47:04,580 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:47:04,580 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:47:04,580 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:47:04,581 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:47:04,581 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:47:04,581 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:47:04,595 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:47:04,596 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-16 13:47:04,599 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-16 13:47:04,602 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-16 13:47:04,647 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-16 13:47:04,647 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:47:04,653 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 13:47:04,656 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 13:47:05,807 INFO L132 LiptonReduction]: Checked pairs total: 2318 [2020-10-16 13:47:05,807 INFO L134 LiptonReduction]: Total number of compositions: 56 [2020-10-16 13:47:05,815 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-16 13:47:05,851 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-16 13:47:05,855 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-16 13:47:05,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 13:47:05,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:47:05,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:47:05,865 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:47:05,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:47:05,873 INFO L82 PathProgramCache]: Analyzing trace with hash -346907981, now seen corresponding path program 1 times [2020-10-16 13:47:05,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:47:05,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019430712] [2020-10-16 13:47:05,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:47:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:47:06,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:47:06,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019430712] [2020-10-16 13:47:06,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:47:06,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:47:06,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1316931185] [2020-10-16 13:47:06,102 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:47:06,106 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:47:06,123 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 13:47:06,124 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:47:06,128 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:47:06,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 13:47:06,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:47:06,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 13:47:06,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 13:47:06,149 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-16 13:47:06,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:47:06,176 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-16 13:47:06,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 13:47:06,178 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-16 13:47:06,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:47:06,202 INFO L225 Difference]: With dead ends: 362 [2020-10-16 13:47:06,203 INFO L226 Difference]: Without dead ends: 298 [2020-10-16 13:47:06,204 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 13:47:06,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-16 13:47:06,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-16 13:47:06,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-16 13:47:06,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-16 13:47:06,306 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-16 13:47:06,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:47:06,307 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-16 13:47:06,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 13:47:06,308 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-16 13:47:06,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 13:47:06,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:47:06,309 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:47:06,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:47:06,310 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:47:06,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:47:06,311 INFO L82 PathProgramCache]: Analyzing trace with hash 2130750683, now seen corresponding path program 1 times [2020-10-16 13:47:06,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:47:06,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237014409] [2020-10-16 13:47:06,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:47:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:47:06,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:47:06,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237014409] [2020-10-16 13:47:06,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:47:06,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:47:06,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [121690243] [2020-10-16 13:47:06,430 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:47:06,431 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:47:06,433 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-16 13:47:06,433 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:47:06,434 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:47:06,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:47:06,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:47:06,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:47:06,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:47:06,436 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-16 13:47:06,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:47:06,458 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-16 13:47:06,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:47:06,459 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 13:47:06,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:47:06,462 INFO L225 Difference]: With dead ends: 217 [2020-10-16 13:47:06,462 INFO L226 Difference]: Without dead ends: 217 [2020-10-16 13:47:06,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:47:06,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-16 13:47:06,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-16 13:47:06,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-16 13:47:06,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-16 13:47:06,482 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-16 13:47:06,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:47:06,483 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-16 13:47:06,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:47:06,483 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-16 13:47:06,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 13:47:06,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:47:06,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:47:06,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:47:06,486 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:47:06,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:47:06,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1087116204, now seen corresponding path program 1 times [2020-10-16 13:47:06,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:47:06,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245569847] [2020-10-16 13:47:06,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:47:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:47:06,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:47:06,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245569847] [2020-10-16 13:47:06,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:47:06,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:47:06,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [978670169] [2020-10-16 13:47:06,588 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:47:06,591 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:47:06,592 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions. [2020-10-16 13:47:06,593 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:47:06,593 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:47:06,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:47:06,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:47:06,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:47:06,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:47:06,596 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-16 13:47:06,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:47:06,628 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-16 13:47:06,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:47:06,629 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 13:47:06,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:47:06,630 INFO L225 Difference]: With dead ends: 136 [2020-10-16 13:47:06,631 INFO L226 Difference]: Without dead ends: 136 [2020-10-16 13:47:06,631 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:47:06,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-16 13:47:06,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-16 13:47:06,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-16 13:47:06,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-16 13:47:06,641 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-16 13:47:06,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:47:06,641 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-16 13:47:06,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:47:06,641 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-16 13:47:06,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 13:47:06,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:47:06,643 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:47:06,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:47:06,644 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:47:06,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:47:06,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1427017344, now seen corresponding path program 1 times [2020-10-16 13:47:06,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:47:06,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550367220] [2020-10-16 13:47:06,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:47:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:47:06,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:47:06,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550367220] [2020-10-16 13:47:06,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:47:06,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:47:06,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1653004887] [2020-10-16 13:47:06,713 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:47:06,715 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:47:06,719 INFO L258 McrAutomatonBuilder]: Finished intersection with 34 states and 50 transitions. [2020-10-16 13:47:06,719 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:47:06,835 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:47:06,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:47:06,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:47:06,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:47:06,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:47:06,837 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-16 13:47:06,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:47:06,876 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-16 13:47:06,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:47:06,877 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-16 13:47:06,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:47:06,878 INFO L225 Difference]: With dead ends: 109 [2020-10-16 13:47:06,878 INFO L226 Difference]: Without dead ends: 109 [2020-10-16 13:47:06,879 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:47:06,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-16 13:47:06,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-16 13:47:06,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-16 13:47:06,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-16 13:47:06,886 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-16 13:47:06,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:47:06,887 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-16 13:47:06,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:47:06,887 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-16 13:47:06,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 13:47:06,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:47:06,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:47:06,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:47:06,895 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:47:06,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:47:06,898 INFO L82 PathProgramCache]: Analyzing trace with hash 68730238, now seen corresponding path program 1 times [2020-10-16 13:47:06,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:47:06,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650731743] [2020-10-16 13:47:06,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:47:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:47:06,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:47:06,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650731743] [2020-10-16 13:47:06,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:47:06,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:47:06,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [812819614] [2020-10-16 13:47:06,994 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:47:06,997 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:47:07,008 INFO L258 McrAutomatonBuilder]: Finished intersection with 77 states and 141 transitions. [2020-10-16 13:47:07,009 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:47:07,023 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:47:07,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:47:07,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:47:07,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:47:07,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:47:07,025 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-10-16 13:47:07,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:47:07,045 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-16 13:47:07,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:47:07,045 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-16 13:47:07,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:47:07,046 INFO L225 Difference]: With dead ends: 135 [2020-10-16 13:47:07,047 INFO L226 Difference]: Without dead ends: 85 [2020-10-16 13:47:07,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:47:07,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-16 13:47:07,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-16 13:47:07,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-16 13:47:07,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-10-16 13:47:07,052 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-10-16 13:47:07,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:47:07,052 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-10-16 13:47:07,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:47:07,053 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-10-16 13:47:07,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 13:47:07,053 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:47:07,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:47:07,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:47:07,054 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:47:07,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:47:07,054 INFO L82 PathProgramCache]: Analyzing trace with hash 225033754, now seen corresponding path program 2 times [2020-10-16 13:47:07,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:47:07,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293705946] [2020-10-16 13:47:07,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:47:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:47:07,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:47:07,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293705946] [2020-10-16 13:47:07,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:47:07,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:47:07,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1047216153] [2020-10-16 13:47:07,106 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:47:07,108 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:47:07,119 INFO L258 McrAutomatonBuilder]: Finished intersection with 79 states and 141 transitions. [2020-10-16 13:47:07,120 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:47:07,127 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:47:07,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:47:07,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:47:07,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:47:07,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:47:07,129 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 4 states. [2020-10-16 13:47:07,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:47:07,148 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-10-16 13:47:07,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:47:07,148 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-16 13:47:07,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:47:07,149 INFO L225 Difference]: With dead ends: 99 [2020-10-16 13:47:07,149 INFO L226 Difference]: Without dead ends: 37 [2020-10-16 13:47:07,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:47:07,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-16 13:47:07,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-16 13:47:07,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-16 13:47:07,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-10-16 13:47:07,152 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-10-16 13:47:07,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:47:07,153 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-10-16 13:47:07,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:47:07,153 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-10-16 13:47:07,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 13:47:07,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:47:07,154 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:47:07,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:47:07,154 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:47:07,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:47:07,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1816005352, now seen corresponding path program 3 times [2020-10-16 13:47:07,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:47:07,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387721459] [2020-10-16 13:47:07,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:47:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:47:07,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:47:07,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387721459] [2020-10-16 13:47:07,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:47:07,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:47:07,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [908478007] [2020-10-16 13:47:07,207 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:47:07,209 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:47:07,221 INFO L258 McrAutomatonBuilder]: Finished intersection with 77 states and 138 transitions. [2020-10-16 13:47:07,222 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:47:07,226 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:47:07,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:47:07,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:47:07,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:47:07,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:47:07,228 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 4 states. [2020-10-16 13:47:07,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:47:07,240 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-10-16 13:47:07,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:47:07,240 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-16 13:47:07,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:47:07,241 INFO L225 Difference]: With dead ends: 36 [2020-10-16 13:47:07,241 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:47:07,241 INFO L677 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 [2020-10-16 13:47:07,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:47:07,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:47:07,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:47:07,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:47:07,242 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-16 13:47:07,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:47:07,243 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:47:07,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:47:07,243 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:47:07,243 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:47:07,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 13:47:07,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:47:07 BasicIcfg [2020-10-16 13:47:07,248 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:47:07,251 INFO L168 Benchmark]: Toolchain (without parser) took 4308.12 ms. Allocated memory was 138.4 MB in the beginning and 251.7 MB in the end (delta: 113.2 MB). Free memory was 100.0 MB in the beginning and 107.5 MB in the end (delta: -7.5 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2020-10-16 13:47:07,252 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:47:07,253 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.37 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 99.8 MB in the beginning and 157.7 MB in the end (delta: -57.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:47:07,253 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.78 ms. Allocated memory is still 201.3 MB. Free memory was 157.7 MB in the beginning and 155.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:47:07,254 INFO L168 Benchmark]: Boogie Preprocessor took 28.57 ms. Allocated memory is still 201.3 MB. Free memory was 155.6 MB in the beginning and 154.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:47:07,255 INFO L168 Benchmark]: RCFGBuilder took 659.75 ms. Allocated memory is still 201.3 MB. Free memory was 154.2 MB in the beginning and 132.2 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:47:07,256 INFO L168 Benchmark]: TraceAbstraction took 2796.32 ms. Allocated memory was 201.3 MB in the beginning and 251.7 MB in the end (delta: 50.3 MB). Free memory was 132.2 MB in the beginning and 107.5 MB in the end (delta: 24.7 MB). Peak memory consumption was 75.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:47:07,266 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 760.37 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 99.8 MB in the beginning and 157.7 MB in the end (delta: -57.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.78 ms. Allocated memory is still 201.3 MB. Free memory was 157.7 MB in the beginning and 155.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.57 ms. Allocated memory is still 201.3 MB. Free memory was 155.6 MB in the beginning and 154.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 659.75 ms. Allocated memory is still 201.3 MB. Free memory was 154.2 MB in the beginning and 132.2 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2796.32 ms. Allocated memory was 201.3 MB in the beginning and 251.7 MB in the end (delta: 50.3 MB). Free memory was 132.2 MB in the beginning and 107.5 MB in the end (delta: 24.7 MB). Peak memory consumption was 75.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 663 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 39 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 76 PlacesBefore, 32 PlacesAfterwards, 68 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 12 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 56 TotalNumberOfCompositions, 2318 MoverChecksTotal - 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 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 128 SDtfs, 66 SDslu, 157 SDs, 0 SdLazy, 49 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2420 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...