/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe010_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:14:00,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:14:00,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:14:00,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:14:00,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:14:00,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:14:00,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:14:00,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:14:00,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:14:00,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:14:00,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:14:00,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:14:00,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:14:00,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:14:00,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:14:00,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:14:00,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:14:00,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:14:00,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:14:00,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:14:00,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:14:00,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:14:00,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:14:00,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:14:00,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 02:14:00,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:14:00,714 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:14:00,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:14:00,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:14:00,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:14:00,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:14:00,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:14:00,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:14:00,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:14:00,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:14:00,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:14:00,726 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-10-22 02:14:00,766 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:14:00,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:14:00,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:14:00,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:14:00,769 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:14:00,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:14:00,770 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:14:00,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:14:00,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:14:00,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:14:00,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:14:00,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:14:00,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:14:00,772 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:14:00,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:14:00,773 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:14:00,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:14:00,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:14:00,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:14:00,774 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:14:00,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:14:00,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:14:00,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:14:00,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:14:00,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:14:00,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:14:00,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:14:00,775 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:14:00,775 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:14:00,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:14:00,776 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:14:01,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:14:01,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:14:01,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:14:01,080 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:14:01,081 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:14:01,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_rmo.oepc.i [2020-10-22 02:14:01,145 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/549214bdc/15f6b58de4064e2090dcc4e71e518794/FLAGffb34086b [2020-10-22 02:14:01,626 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:14:01,627 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_rmo.oepc.i [2020-10-22 02:14:01,648 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/549214bdc/15f6b58de4064e2090dcc4e71e518794/FLAGffb34086b [2020-10-22 02:14:01,901 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/549214bdc/15f6b58de4064e2090dcc4e71e518794 [2020-10-22 02:14:01,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:14:01,915 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:14:01,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:14:01,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:14:01,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:14:01,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:14:01" (1/1) ... [2020-10-22 02:14:01,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cfd43b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:01, skipping insertion in model container [2020-10-22 02:14:01,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:14:01" (1/1) ... [2020-10-22 02:14:01,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:14:02,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:14:02,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:14:02,532 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:14:02,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:14:02,708 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:14:02,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:02 WrapperNode [2020-10-22 02:14:02,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:14:02,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:14:02,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:14:02,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:14:02,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:02" (1/1) ... [2020-10-22 02:14:02,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:02" (1/1) ... [2020-10-22 02:14:02,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:14:02,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:14:02,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:14:02,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:14:02,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:02" (1/1) ... [2020-10-22 02:14:02,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:02" (1/1) ... [2020-10-22 02:14:02,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:02" (1/1) ... [2020-10-22 02:14:02,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:02" (1/1) ... [2020-10-22 02:14:02,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:02" (1/1) ... [2020-10-22 02:14:02,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:02" (1/1) ... [2020-10-22 02:14:02,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:02" (1/1) ... [2020-10-22 02:14:02,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:14:02,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:14:02,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:14:02,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:14:02,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:14:02,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:14:02,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:14:02,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:14:02,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:14:02,900 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:14:02,901 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:14:02,901 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:14:02,901 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:14:02,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:14:02,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:14:02,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:14:02,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:14:02,904 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:14:04,775 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:14:04,775 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-22 02:14:04,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:14:04 BoogieIcfgContainer [2020-10-22 02:14:04,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:14:04,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:14:04,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:14:04,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:14:04,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:14:01" (1/3) ... [2020-10-22 02:14:04,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508fb4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:14:04, skipping insertion in model container [2020-10-22 02:14:04,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:02" (2/3) ... [2020-10-22 02:14:04,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508fb4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:14:04, skipping insertion in model container [2020-10-22 02:14:04,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:14:04" (3/3) ... [2020-10-22 02:14:04,787 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_rmo.oepc.i [2020-10-22 02:14:04,798 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:14:04,798 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:14:04,806 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-22 02:14:04,807 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:14:04,834 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,834 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,835 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,836 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,836 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,836 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,836 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,837 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,837 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,837 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,837 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,837 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,838 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,838 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,838 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,838 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,839 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,839 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,839 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,839 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,839 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,840 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,840 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,841 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,841 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,841 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,841 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,842 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,842 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,842 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,842 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,842 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,843 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,843 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,843 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,844 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,848 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,848 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,848 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,848 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,850 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,850 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,855 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,855 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,855 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,855 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,855 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,856 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,856 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,856 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,856 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,856 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:04,858 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:14:04,872 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-22 02:14:04,893 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:14:04,893 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:14:04,893 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:14:04,893 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:14:04,893 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:14:04,893 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:14:04,894 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:14:04,894 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:14:04,907 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:14:04,908 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 84 transitions, 178 flow [2020-10-22 02:14:04,911 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 84 transitions, 178 flow [2020-10-22 02:14:04,913 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 88 places, 84 transitions, 178 flow [2020-10-22 02:14:04,954 INFO L129 PetriNetUnfolder]: 3/82 cut-off events. [2020-10-22 02:14:04,955 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:14:04,960 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 82 events. 3/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2020-10-22 02:14:04,962 INFO L116 LiptonReduction]: Number of co-enabled transitions 1046 [2020-10-22 02:14:05,568 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-22 02:14:05,710 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-22 02:14:07,991 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 236 DAG size of output: 196 [2020-10-22 02:14:08,047 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 2, 2, 1] term [2020-10-22 02:14:08,048 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-22 02:14:08,051 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 1] term [2020-10-22 02:14:08,051 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-22 02:14:09,006 WARN L193 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 122 [2020-10-22 02:14:10,015 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 227 DAG size of output: 187 [2020-10-22 02:14:10,045 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 2, 2, 1] term [2020-10-22 02:14:10,045 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-22 02:14:10,047 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 1] term [2020-10-22 02:14:10,047 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-22 02:14:10,943 WARN L193 SmtUtils]: Spent 893.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 107 [2020-10-22 02:14:11,311 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-22 02:14:11,653 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-22 02:14:12,149 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-10-22 02:14:12,309 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-22 02:14:12,314 INFO L131 LiptonReduction]: Checked pairs total: 2714 [2020-10-22 02:14:12,314 INFO L133 LiptonReduction]: Total number of compositions: 81 [2020-10-22 02:14:12,321 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 19 transitions, 48 flow [2020-10-22 02:14:12,338 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 164 states. [2020-10-22 02:14:12,341 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2020-10-22 02:14:12,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-22 02:14:12,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:14:12,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-22 02:14:12,349 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:14:12,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:14:12,355 INFO L82 PathProgramCache]: Analyzing trace with hash 949666, now seen corresponding path program 1 times [2020-10-22 02:14:12,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:14:12,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116702248] [2020-10-22 02:14:12,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:14:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:14:12,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:14:12,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116702248] [2020-10-22 02:14:12,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:14:12,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:14:12,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1981303780] [2020-10-22 02:14:12,590 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:14:12,593 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:14:12,608 INFO L252 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-10-22 02:14:12,608 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:14:12,612 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:14:12,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:14:12,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:14:12,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:14:12,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:14:12,630 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 3 states. [2020-10-22 02:14:12,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:14:12,698 INFO L93 Difference]: Finished difference Result 137 states and 320 transitions. [2020-10-22 02:14:12,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:14:12,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-22 02:14:12,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:14:12,712 INFO L225 Difference]: With dead ends: 137 [2020-10-22 02:14:12,712 INFO L226 Difference]: Without dead ends: 112 [2020-10-22 02:14:12,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:14:12,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-22 02:14:12,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-22 02:14:12,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-22 02:14:12,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-10-22 02:14:12,763 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 3 [2020-10-22 02:14:12,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:14:12,764 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-10-22 02:14:12,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:14:12,764 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-10-22 02:14:12,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-22 02:14:12,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:14:12,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:14:12,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:14:12,766 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:14:12,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:14:12,766 INFO L82 PathProgramCache]: Analyzing trace with hash 904100816, now seen corresponding path program 1 times [2020-10-22 02:14:12,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:14:12,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087994903] [2020-10-22 02:14:12,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:14:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:14:12,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:14:12,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087994903] [2020-10-22 02:14:12,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:14:12,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:14:12,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [644319919] [2020-10-22 02:14:12,915 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:14:12,916 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:14:12,919 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-22 02:14:12,919 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:14:12,919 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:14:12,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:14:12,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:14:12,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:14:12,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:14:12,922 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 3 states. [2020-10-22 02:14:12,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:14:12,933 INFO L93 Difference]: Finished difference Result 107 states and 241 transitions. [2020-10-22 02:14:12,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:14:12,934 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-22 02:14:12,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:14:12,936 INFO L225 Difference]: With dead ends: 107 [2020-10-22 02:14:12,936 INFO L226 Difference]: Without dead ends: 107 [2020-10-22 02:14:12,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:14:12,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-22 02:14:12,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-10-22 02:14:12,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-22 02:14:12,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 241 transitions. [2020-10-22 02:14:12,950 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 241 transitions. Word has length 7 [2020-10-22 02:14:12,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:14:12,950 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 241 transitions. [2020-10-22 02:14:12,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:14:12,950 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 241 transitions. [2020-10-22 02:14:12,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 02:14:12,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:14:12,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:14:12,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:14:12,952 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:14:12,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:14:12,952 INFO L82 PathProgramCache]: Analyzing trace with hash -2037646372, now seen corresponding path program 1 times [2020-10-22 02:14:12,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:14:12,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770945025] [2020-10-22 02:14:12,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:14:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:14:13,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:14:13,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770945025] [2020-10-22 02:14:13,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:14:13,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:14:13,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [288111991] [2020-10-22 02:14:13,063 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:14:13,064 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:14:13,067 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 12 transitions. [2020-10-22 02:14:13,067 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:14:13,119 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-22 02:14:13,140 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:14:13,142 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:14:13,156 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:14:13,188 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:14:13,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:14:13,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:14:13,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:14:13,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:14:13,190 INFO L87 Difference]: Start difference. First operand 107 states and 241 transitions. Second operand 4 states. [2020-10-22 02:14:13,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:14:13,251 INFO L93 Difference]: Finished difference Result 103 states and 230 transitions. [2020-10-22 02:14:13,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:14:13,252 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-22 02:14:13,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:14:13,254 INFO L225 Difference]: With dead ends: 103 [2020-10-22 02:14:13,254 INFO L226 Difference]: Without dead ends: 103 [2020-10-22 02:14:13,254 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:14:13,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-22 02:14:13,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2020-10-22 02:14:13,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-22 02:14:13,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 230 transitions. [2020-10-22 02:14:13,265 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 230 transitions. Word has length 8 [2020-10-22 02:14:13,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:14:13,265 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 230 transitions. [2020-10-22 02:14:13,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:14:13,266 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 230 transitions. [2020-10-22 02:14:13,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 02:14:13,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:14:13,267 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:14:13,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:14:13,267 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:14:13,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:14:13,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1237729489, now seen corresponding path program 1 times [2020-10-22 02:14:13,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:14:13,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067518905] [2020-10-22 02:14:13,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:14:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:14:13,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:14:13,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067518905] [2020-10-22 02:14:13,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:14:13,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:14:13,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [446050908] [2020-10-22 02:14:13,354 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:14:13,356 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:14:13,358 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 24 transitions. [2020-10-22 02:14:13,359 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:14:13,447 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-22 02:14:13,576 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1427#(and (= ~y$w_buff0~0 0) (= ~__unbuffered_p1_EAX~0 0))] [2020-10-22 02:14:13,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-22 02:14:13,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:14:13,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-22 02:14:13,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-22 02:14:13,578 INFO L87 Difference]: Start difference. First operand 103 states and 230 transitions. Second operand 6 states. [2020-10-22 02:14:13,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:14:13,667 INFO L93 Difference]: Finished difference Result 135 states and 294 transitions. [2020-10-22 02:14:13,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:14:13,668 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-10-22 02:14:13,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:14:13,669 INFO L225 Difference]: With dead ends: 135 [2020-10-22 02:14:13,669 INFO L226 Difference]: Without dead ends: 75 [2020-10-22 02:14:13,670 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:14:13,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-22 02:14:13,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-10-22 02:14:13,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-22 02:14:13,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 155 transitions. [2020-10-22 02:14:13,677 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 155 transitions. Word has length 9 [2020-10-22 02:14:13,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:14:13,677 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 155 transitions. [2020-10-22 02:14:13,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-22 02:14:13,677 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 155 transitions. [2020-10-22 02:14:13,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 02:14:13,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:14:13,678 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:14:13,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:14:13,679 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:14:13,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:14:13,679 INFO L82 PathProgramCache]: Analyzing trace with hash -349162932, now seen corresponding path program 1 times [2020-10-22 02:14:13,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:14:13,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746133252] [2020-10-22 02:14:13,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:14:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:14:13,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:14:13,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746133252] [2020-10-22 02:14:13,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:14:13,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:14:13,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1045538042] [2020-10-22 02:14:13,848 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:14:13,850 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:14:13,853 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-10-22 02:14:13,853 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:14:14,005 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 3, 2, 1] term [2020-10-22 02:14:14,005 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-22 02:14:14,006 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-10-22 02:14:14,007 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-22 02:14:14,008 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-22 02:14:14,014 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-22 02:14:14,018 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-22 02:14:14,025 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-22 02:14:14,031 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-22 02:14:14,034 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-22 02:14:14,042 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-22 02:14:14,096 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:14:14,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:14:14,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:14:14,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:14:14,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:14:14,098 INFO L87 Difference]: Start difference. First operand 75 states and 155 transitions. Second operand 5 states. [2020-10-22 02:14:14,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:14:14,174 INFO L93 Difference]: Finished difference Result 74 states and 152 transitions. [2020-10-22 02:14:14,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:14:14,175 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-22 02:14:14,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:14:14,176 INFO L225 Difference]: With dead ends: 74 [2020-10-22 02:14:14,176 INFO L226 Difference]: Without dead ends: 74 [2020-10-22 02:14:14,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-22 02:14:14,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-22 02:14:14,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-22 02:14:14,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-22 02:14:14,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 152 transitions. [2020-10-22 02:14:14,182 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 152 transitions. Word has length 10 [2020-10-22 02:14:14,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:14:14,182 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 152 transitions. [2020-10-22 02:14:14,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:14:14,182 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 152 transitions. [2020-10-22 02:14:14,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 02:14:14,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:14:14,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:14:14,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:14:14,184 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:14:14,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:14:14,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1997703090, now seen corresponding path program 1 times [2020-10-22 02:14:14,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:14:14,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722699618] [2020-10-22 02:14:14,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:14:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:14:14,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:14:14,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722699618] [2020-10-22 02:14:14,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:14:14,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:14:14,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1412595529] [2020-10-22 02:14:14,316 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:14:14,318 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:14:14,323 INFO L252 McrAutomatonBuilder]: Finished intersection with 25 states and 38 transitions. [2020-10-22 02:14:14,324 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:14:14,599 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:14:14,688 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1950#(not (= 2 ~__unbuffered_cnt~0))] [2020-10-22 02:14:14,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:14:14,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:14:14,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:14:14,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:14:14,690 INFO L87 Difference]: Start difference. First operand 74 states and 152 transitions. Second operand 5 states. [2020-10-22 02:14:14,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:14:14,736 INFO L93 Difference]: Finished difference Result 49 states and 87 transitions. [2020-10-22 02:14:14,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 02:14:14,737 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-22 02:14:14,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:14:14,738 INFO L225 Difference]: With dead ends: 49 [2020-10-22 02:14:14,738 INFO L226 Difference]: Without dead ends: 32 [2020-10-22 02:14:14,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:14:14,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-22 02:14:14,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-22 02:14:14,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-22 02:14:14,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 47 transitions. [2020-10-22 02:14:14,741 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 47 transitions. Word has length 11 [2020-10-22 02:14:14,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:14:14,742 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 47 transitions. [2020-10-22 02:14:14,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:14:14,742 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 47 transitions. [2020-10-22 02:14:14,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-22 02:14:14,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:14:14,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:14:14,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:14:14,743 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:14:14,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:14:14,744 INFO L82 PathProgramCache]: Analyzing trace with hash 25656177, now seen corresponding path program 1 times [2020-10-22 02:14:14,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:14:14,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365658316] [2020-10-22 02:14:14,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:14:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:14:14,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:14:14,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365658316] [2020-10-22 02:14:14,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:14:14,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-22 02:14:14,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1890027225] [2020-10-22 02:14:14,920 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:14:14,924 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:14:14,930 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 29 transitions. [2020-10-22 02:14:14,930 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:14:15,147 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:14:15,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 02:14:15,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:14:15,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 02:14:15,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:14:15,148 INFO L87 Difference]: Start difference. First operand 32 states and 47 transitions. Second operand 7 states. [2020-10-22 02:14:15,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:14:15,225 INFO L93 Difference]: Finished difference Result 40 states and 56 transitions. [2020-10-22 02:14:15,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:14:15,225 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-22 02:14:15,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:14:15,226 INFO L225 Difference]: With dead ends: 40 [2020-10-22 02:14:15,226 INFO L226 Difference]: Without dead ends: 24 [2020-10-22 02:14:15,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:14:15,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-22 02:14:15,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-22 02:14:15,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-22 02:14:15,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2020-10-22 02:14:15,230 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 15 [2020-10-22 02:14:15,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:14:15,231 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2020-10-22 02:14:15,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 02:14:15,231 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2020-10-22 02:14:15,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-22 02:14:15,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:14:15,232 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:14:15,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 02:14:15,232 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:14:15,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:14:15,233 INFO L82 PathProgramCache]: Analyzing trace with hash 585857653, now seen corresponding path program 2 times [2020-10-22 02:14:15,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:14:15,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421923318] [2020-10-22 02:14:15,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:14:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 02:14:15,309 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 02:14:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 02:14:15,387 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 02:14:15,427 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 02:14:15,428 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 02:14:15,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 02:14:15,429 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-22 02:14:15,438 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [915] [915] L799-->L806: Formula: (let ((.cse6 (= (mod ~y$w_buff1_used~0_In-1426281223 256) 0)) (.cse7 (= (mod ~y$r_buff1_thd0~0_In-1426281223 256) 0)) (.cse8 (= (mod ~y$r_buff0_thd0~0_In-1426281223 256) 0)) (.cse9 (= (mod ~y$w_buff0_used~0_In-1426281223 256) 0))) (let ((.cse5 (or .cse8 .cse9)) (.cse0 (not .cse9)) (.cse1 (not .cse8)) (.cse3 (not .cse7)) (.cse4 (not .cse6)) (.cse2 (or .cse6 .cse7))) (and (or (and .cse0 (= ~y~0_Out-1426281223 ~y$w_buff0~0_In-1426281223) .cse1) (and (or (and (= ~y~0_Out-1426281223 ~y~0_In-1426281223) .cse2) (and (= ~y~0_Out-1426281223 ~y$w_buff1~0_In-1426281223) .cse3 .cse4)) .cse5)) (= |ULTIMATE.start_assume_abort_if_not_#in~cond_In-1426281223| ULTIMATE.start_assume_abort_if_not_~cond_Out-1426281223) (or (and (= ~y$w_buff0_used~0_In-1426281223 ~y$w_buff0_used~0_Out-1426281223) .cse5) (and (= ~y$w_buff0_used~0_Out-1426281223 0) .cse0 .cse1)) (not (= ULTIMATE.start_assume_abort_if_not_~cond_Out-1426281223 0)) (= ~y$r_buff1_thd0~0_In-1426281223 ~y$r_buff1_thd0~0_Out-1426281223) (= ~y$r_buff0_thd0~0_Out-1426281223 ~y$r_buff0_thd0~0_In-1426281223) (or (and (= ~y$w_buff1_used~0_Out-1426281223 0) .cse3 .cse4) (and (= ~y$w_buff1_used~0_Out-1426281223 ~y$w_buff1_used~0_In-1426281223) .cse2))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_In-1426281223|, ~y$w_buff0_used~0=~y$w_buff0_used~0_In-1426281223, ~y$w_buff1~0=~y$w_buff1~0_In-1426281223, ~y$r_buff0_thd0~0=~y$r_buff0_thd0~0_In-1426281223, ~y$w_buff0~0=~y$w_buff0~0_In-1426281223, ~y~0=~y~0_In-1426281223, ~y$r_buff1_thd0~0=~y$r_buff1_thd0~0_In-1426281223, ~y$w_buff1_used~0=~y$w_buff1_used~0_In-1426281223} OutVars{~y$w_buff0_used~0=~y$w_buff0_used~0_Out-1426281223, ULTIMATE.start_main_#t~ite19=|ULTIMATE.start_main_#t~ite19_Out-1426281223|, ULTIMATE.start_main_#t~ite24=|ULTIMATE.start_main_#t~ite24_Out-1426281223|, ULTIMATE.start_main_#t~ite20=|ULTIMATE.start_main_#t~ite20_Out-1426281223|, ULTIMATE.start_main_#t~ite21=|ULTIMATE.start_main_#t~ite21_Out-1426281223|, ULTIMATE.start_main_#t~ite22=|ULTIMATE.start_main_#t~ite22_Out-1426281223|, ULTIMATE.start_main_#t~ite23=|ULTIMATE.start_main_#t~ite23_Out-1426281223|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_In-1426281223|, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out-1426281223, ~y$w_buff1~0=~y$w_buff1~0_In-1426281223, ~y$r_buff0_thd0~0=~y$r_buff0_thd0~0_Out-1426281223, ~y$w_buff0~0=~y$w_buff0~0_In-1426281223, ~y~0=~y~0_Out-1426281223, ~y$r_buff1_thd0~0=~y$r_buff1_thd0~0_Out-1426281223, ~y$w_buff1_used~0=~y$w_buff1_used~0_Out-1426281223} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond, ~y$w_buff0_used~0, ULTIMATE.start_main_#t~ite19, ~y$r_buff0_thd0~0, ULTIMATE.start_main_#t~ite24, ULTIMATE.start_main_#t~ite20, ~y~0, ULTIMATE.start_main_#t~ite21, ~y$r_buff1_thd0~0, ULTIMATE.start_main_#t~ite22, ULTIMATE.start_main_#t~ite23, ~y$w_buff1_used~0] because there is no mapped edge [2020-10-22 02:14:15,444 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,444 WARN L224 RCFGBacktranslator]: unable to determine which branch was taken at C: __VERIFIER_atomic_begin() [735] [2020-10-22 02:14:15,445 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,446 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,446 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,446 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,446 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,446 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,447 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,447 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,447 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,447 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,448 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,448 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,448 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,448 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,449 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,449 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,449 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,449 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,449 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,449 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,450 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,450 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,450 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,451 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,451 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,451 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,451 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,451 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,451 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,452 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,452 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,452 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,452 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,452 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,452 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,453 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,453 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,453 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,453 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,453 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,454 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,454 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,454 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,454 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,454 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-22 02:14:15,454 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-22 02:14:15,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:14:15 BasicIcfg [2020-10-22 02:14:15,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:14:15,499 INFO L168 Benchmark]: Toolchain (without parser) took 13588.08 ms. Allocated memory was 140.5 MB in the beginning and 354.9 MB in the end (delta: 214.4 MB). Free memory was 101.8 MB in the beginning and 90.5 MB in the end (delta: 11.3 MB). Peak memory consumption was 225.7 MB. Max. memory is 7.1 GB. [2020-10-22 02:14:15,499 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-22 02:14:15,500 INFO L168 Benchmark]: CACSL2BoogieTranslator took 792.66 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 155.6 MB in the end (delta: -54.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:14:15,501 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.18 ms. Allocated memory is still 203.9 MB. Free memory was 155.6 MB in the beginning and 152.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-22 02:14:15,502 INFO L168 Benchmark]: Boogie Preprocessor took 39.08 ms. Allocated memory is still 203.9 MB. Free memory was 152.8 MB in the beginning and 150.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-22 02:14:15,503 INFO L168 Benchmark]: RCFGBuilder took 1960.67 ms. Allocated memory was 203.9 MB in the beginning and 248.0 MB in the end (delta: 44.0 MB). Free memory was 150.1 MB in the beginning and 192.1 MB in the end (delta: -42.0 MB). Peak memory consumption was 100.3 MB. Max. memory is 7.1 GB. [2020-10-22 02:14:15,504 INFO L168 Benchmark]: TraceAbstraction took 10718.20 ms. Allocated memory was 248.0 MB in the beginning and 354.9 MB in the end (delta: 107.0 MB). Free memory was 192.1 MB in the beginning and 90.5 MB in the end (delta: 101.6 MB). Peak memory consumption was 208.5 MB. Max. memory is 7.1 GB. [2020-10-22 02:14:15,508 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 792.66 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 155.6 MB in the end (delta: -54.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 68.18 ms. Allocated memory is still 203.9 MB. Free memory was 155.6 MB in the beginning and 152.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.08 ms. Allocated memory is still 203.9 MB. Free memory was 152.8 MB in the beginning and 150.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1960.67 ms. Allocated memory was 203.9 MB in the beginning and 248.0 MB in the end (delta: 44.0 MB). Free memory was 150.1 MB in the beginning and 192.1 MB in the end (delta: -42.0 MB). Peak memory consumption was 100.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10718.20 ms. Allocated memory was 248.0 MB in the beginning and 354.9 MB in the end (delta: 107.0 MB). Free memory was 192.1 MB in the beginning and 90.5 MB in the end (delta: 101.6 MB). Peak memory consumption was 208.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 553 VarBasedMoverChecksPositive, 28 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 35 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 7.4s, 88 PlacesBefore, 26 PlacesAfterwards, 84 TransitionsBefore, 19 TransitionsAfterwards, 1046 CoEnabledTransitionPairs, 7 FixpointIterations, 32 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 3 ChoiceCompositions, 81 TotalNumberOfCompositions, 2714 MoverChecksTotal - CounterExampleResult [Line: 17]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L711] 0 _Bool main$tmp_guard0; [L712] 0 _Bool main$tmp_guard1; [L714] 0 int x = 0; [L716] 0 int y = 0; [L717] 0 _Bool y$flush_delayed; [L718] 0 int y$mem_tmp; [L719] 0 _Bool y$r_buff0_thd0; [L720] 0 _Bool y$r_buff0_thd1; [L721] 0 _Bool y$r_buff0_thd2; [L722] 0 _Bool y$r_buff1_thd0; [L723] 0 _Bool y$r_buff1_thd1; [L724] 0 _Bool y$r_buff1_thd2; [L725] 0 _Bool y$read_delayed; [L726] 0 int *y$read_delayed_var; [L727] 0 int y$w_buff0; [L728] 0 _Bool y$w_buff0_used; [L729] 0 int y$w_buff1; [L730] 0 _Bool y$w_buff1_used; [L731] 0 _Bool weak$$choice0; [L732] 0 _Bool weak$$choice2; [L792] 0 pthread_t t2017; [L793] FCALL, FORK 0 pthread_create(&t2017, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L794] 0 pthread_t t2018; [L795] FCALL, FORK 0 pthread_create(&t2018, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L736] 1 y$w_buff1 = y$w_buff0 [L737] 1 y$w_buff0 = 2 [L738] 1 y$w_buff1_used = y$w_buff0_used [L739] 1 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L741] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L742] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L743] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L744] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L747] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L764] 2 __unbuffered_p1_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L767] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L750] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L750] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L751] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L751] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L752] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L752] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L753] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L753] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L754] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L754] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L770] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L770] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L770] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L770] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L771] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L772] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L773] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L773] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L774] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L774] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L777] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L779] 2 return 0; [L757] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L759] 1 return 0; [L797] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L808] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L809] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L810] 0 y$flush_delayed = weak$$choice2 [L811] 0 y$mem_tmp = y [L812] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L812] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1 [L812] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L812] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L813] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L813] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L814] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L814] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1) [L814] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L814] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L815] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L815] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used) [L815] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L815] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L816] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L816] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L816] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L816] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L817] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L817] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L818] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L818] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L819] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p1_EAX == 1) [L820] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L820] 0 y = y$flush_delayed ? y$mem_tmp : y [L821] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L17] COND FALSE 0 !(0) [L17] 0 __assert_fail ("0", "safe010_rmo.oepc.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 82 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.5s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.4s, HoareTripleCheckerStatistics: 90 SDtfs, 98 SDslu, 132 SDs, 0 SdLazy, 122 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 4797 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 incorrect! Received shutdown request...