/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/mix042_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:02:51,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:02:51,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:02:51,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:02:51,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:02:51,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:02:51,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:02:51,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:02:51,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:02:51,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:02:51,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:02:51,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:02:51,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:02:51,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:02:51,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:02:51,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:02:51,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:02:51,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:02:51,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:02:51,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:02:51,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:02:51,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:02:51,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:02:51,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:02:51,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:02:51,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:02:51,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:02:51,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:02:51,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:02:51,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:02:51,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:02:51,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:02:51,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:02:51,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:02:51,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:02:51,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:02:51,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:02:51,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:02:51,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:02:51,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:02:51,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:02:51,706 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 12:02:51,759 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:02:51,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:02:51,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:02:51,761 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:02:51,761 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:02:51,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:02:51,761 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:02:51,762 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:02:51,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:02:51,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:02:51,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:02:51,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:02:51,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:02:51,766 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:02:51,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:02:51,766 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:02:51,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:02:51,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:02:51,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:02:51,767 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:02:51,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:02:51,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:02:51,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:02:51,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:02:51,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:02:51,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:02:51,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:02:51,770 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:02:51,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:02:52,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:02:52,101 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:02:52,105 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:02:52,107 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:02:52,107 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:02:52,108 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix042_pso.opt.i [2020-10-16 12:02:52,177 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4eb9cbe31/f1fce01c2cb9452cbe41695846d0c1da/FLAGf731a5d7c [2020-10-16 12:02:52,758 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:02:52,759 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/mix042_pso.opt.i [2020-10-16 12:02:52,788 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4eb9cbe31/f1fce01c2cb9452cbe41695846d0c1da/FLAGf731a5d7c [2020-10-16 12:02:53,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4eb9cbe31/f1fce01c2cb9452cbe41695846d0c1da [2020-10-16 12:02:53,035 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:02:53,037 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:02:53,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:02:53,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:02:53,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:02:53,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:02:53" (1/1) ... [2020-10-16 12:02:53,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49503f67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:53, skipping insertion in model container [2020-10-16 12:02:53,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:02:53" (1/1) ... [2020-10-16 12:02:53,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:02:53,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:02:53,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:02:53,593 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:02:53,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:02:53,753 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:02:53,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:53 WrapperNode [2020-10-16 12:02:53,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:02:53,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:02:53,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:02:53,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:02:53,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:53" (1/1) ... [2020-10-16 12:02:53,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:53" (1/1) ... [2020-10-16 12:02:53,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:02:53,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:02:53,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:02:53,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:02:53,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:53" (1/1) ... [2020-10-16 12:02:53,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:53" (1/1) ... [2020-10-16 12:02:53,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:53" (1/1) ... [2020-10-16 12:02:53,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:53" (1/1) ... [2020-10-16 12:02:53,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:53" (1/1) ... [2020-10-16 12:02:53,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:53" (1/1) ... [2020-10-16 12:02:53,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:53" (1/1) ... [2020-10-16 12:02:53,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:02:53,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:02:53,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:02:53,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:02:53,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:02:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:02:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 12:02:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:02:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:02:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 12:02:53,965 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 12:02:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 12:02:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 12:02:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 12:02:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 12:02:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 12:02:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:02:53,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:02:53,969 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:02:55,888 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:02:55,889 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-16 12:02:55,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:02:55 BoogieIcfgContainer [2020-10-16 12:02:55,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:02:55,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:02:55,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:02:55,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:02:55,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:02:53" (1/3) ... [2020-10-16 12:02:55,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1f8e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:02:55, skipping insertion in model container [2020-10-16 12:02:55,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:53" (2/3) ... [2020-10-16 12:02:55,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1f8e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:02:55, skipping insertion in model container [2020-10-16 12:02:55,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:02:55" (3/3) ... [2020-10-16 12:02:55,900 INFO L111 eAbstractionObserver]: Analyzing ICFG mix042_pso.opt.i [2020-10-16 12:02:55,913 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:02:55,914 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:02:55,922 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 12:02:55,923 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:02:55,953 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,953 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,954 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,954 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,955 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,955 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,955 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,956 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,956 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,956 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,956 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,956 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,956 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,957 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,957 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,957 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,957 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,958 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,958 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,958 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,959 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,959 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,959 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,959 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,959 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,960 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,960 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,960 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,960 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,961 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,961 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,961 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,961 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,961 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,962 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,962 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,966 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,967 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,967 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,967 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,970 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,970 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,970 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,970 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,971 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,971 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,971 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,971 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,971 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,972 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,976 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,976 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,976 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,976 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,977 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,977 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,977 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,977 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,977 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,977 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,977 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,978 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:02:55,979 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:02:55,992 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 12:02:56,014 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:02:56,015 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:02:56,015 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:02:56,015 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:02:56,015 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:02:56,015 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:02:56,016 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:02:56,016 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:02:56,030 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:02:56,031 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 96 transitions, 207 flow [2020-10-16 12:02:56,034 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 96 transitions, 207 flow [2020-10-16 12:02:56,036 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 104 places, 96 transitions, 207 flow [2020-10-16 12:02:56,083 INFO L129 PetriNetUnfolder]: 2/93 cut-off events. [2020-10-16 12:02:56,084 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:02:56,089 INFO L80 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 2/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2020-10-16 12:02:56,092 INFO L117 LiptonReduction]: Number of co-enabled transitions 1692 [2020-10-16 12:02:56,361 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2020-10-16 12:02:57,679 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 228 DAG size of output: 187 [2020-10-16 12:02:57,732 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 2, 1] term [2020-10-16 12:02:57,733 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 12:02:57,738 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 1] term [2020-10-16 12:02:57,739 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 12:02:58,941 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 144 DAG size of output: 124 [2020-10-16 12:02:59,564 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-16 12:02:59,711 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-16 12:03:00,879 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 121 [2020-10-16 12:03:01,189 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-16 12:03:01,842 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 109 [2020-10-16 12:03:02,145 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-16 12:03:02,619 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-16 12:03:02,924 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-16 12:03:03,485 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-16 12:03:03,916 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-16 12:03:04,393 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-16 12:03:04,516 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-16 12:03:04,524 INFO L132 LiptonReduction]: Checked pairs total: 4278 [2020-10-16 12:03:04,524 INFO L134 LiptonReduction]: Total number of compositions: 81 [2020-10-16 12:03:04,532 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 26 transitions, 67 flow [2020-10-16 12:03:04,590 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 750 states. [2020-10-16 12:03:04,592 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states. [2020-10-16 12:03:04,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-16 12:03:04,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:04,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:04,601 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:04,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:04,608 INFO L82 PathProgramCache]: Analyzing trace with hash 809404757, now seen corresponding path program 1 times [2020-10-16 12:03:04,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:04,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384125250] [2020-10-16 12:03:04,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:03:04,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:03:04,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384125250] [2020-10-16 12:03:04,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:03:04,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:03:04,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816976461] [2020-10-16 12:03:04,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:03:04,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:03:04,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:03:04,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:03:04,933 INFO L87 Difference]: Start difference. First operand 750 states. Second operand 3 states. [2020-10-16 12:03:05,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:03:05,075 INFO L93 Difference]: Finished difference Result 650 states and 2028 transitions. [2020-10-16 12:03:05,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:03:05,078 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-16 12:03:05,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:03:05,103 INFO L225 Difference]: With dead ends: 650 [2020-10-16 12:03:05,103 INFO L226 Difference]: Without dead ends: 530 [2020-10-16 12:03:05,104 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 [2020-10-16 12:03:05,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-10-16 12:03:05,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2020-10-16 12:03:05,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2020-10-16 12:03:05,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 1622 transitions. [2020-10-16 12:03:05,202 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 1622 transitions. Word has length 7 [2020-10-16 12:03:05,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:03:05,203 INFO L481 AbstractCegarLoop]: Abstraction has 530 states and 1622 transitions. [2020-10-16 12:03:05,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:03:05,204 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 1622 transitions. [2020-10-16 12:03:05,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:03:05,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:05,205 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:05,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:03:05,206 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:05,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:05,206 INFO L82 PathProgramCache]: Analyzing trace with hash 448965576, now seen corresponding path program 1 times [2020-10-16 12:03:05,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:05,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229067325] [2020-10-16 12:03:05,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:03:05,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:03:05,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229067325] [2020-10-16 12:03:05,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:03:05,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:03:05,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518148878] [2020-10-16 12:03:05,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:03:05,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:03:05,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:03:05,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:03:05,351 INFO L87 Difference]: Start difference. First operand 530 states and 1622 transitions. Second operand 3 states. [2020-10-16 12:03:05,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:03:05,375 INFO L93 Difference]: Finished difference Result 490 states and 1480 transitions. [2020-10-16 12:03:05,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:03:05,376 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 12:03:05,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:03:05,383 INFO L225 Difference]: With dead ends: 490 [2020-10-16 12:03:05,383 INFO L226 Difference]: Without dead ends: 490 [2020-10-16 12:03:05,384 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 [2020-10-16 12:03:05,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-10-16 12:03:05,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2020-10-16 12:03:05,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-10-16 12:03:05,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 1480 transitions. [2020-10-16 12:03:05,426 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 1480 transitions. Word has length 9 [2020-10-16 12:03:05,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:03:05,427 INFO L481 AbstractCegarLoop]: Abstraction has 490 states and 1480 transitions. [2020-10-16 12:03:05,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:03:05,427 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 1480 transitions. [2020-10-16 12:03:05,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:03:05,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:05,433 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:05,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:03:05,434 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:05,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:05,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1959199906, now seen corresponding path program 1 times [2020-10-16 12:03:05,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:05,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415082447] [2020-10-16 12:03:05,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:03:05,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:03:05,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415082447] [2020-10-16 12:03:05,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:03:05,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:03:05,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707427539] [2020-10-16 12:03:05,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:03:05,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:03:05,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:03:05,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:03:05,570 INFO L87 Difference]: Start difference. First operand 490 states and 1480 transitions. Second operand 5 states. [2020-10-16 12:03:05,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:03:05,677 INFO L93 Difference]: Finished difference Result 474 states and 1420 transitions. [2020-10-16 12:03:05,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:03:05,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-16 12:03:05,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:03:05,684 INFO L225 Difference]: With dead ends: 474 [2020-10-16 12:03:05,684 INFO L226 Difference]: Without dead ends: 474 [2020-10-16 12:03:05,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:03:05,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-10-16 12:03:05,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2020-10-16 12:03:05,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2020-10-16 12:03:05,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 1420 transitions. [2020-10-16 12:03:05,701 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 1420 transitions. Word has length 11 [2020-10-16 12:03:05,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:03:05,702 INFO L481 AbstractCegarLoop]: Abstraction has 474 states and 1420 transitions. [2020-10-16 12:03:05,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:03:05,703 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 1420 transitions. [2020-10-16 12:03:05,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:03:05,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:05,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:05,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:03:05,706 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:05,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:05,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1125078309, now seen corresponding path program 1 times [2020-10-16 12:03:05,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:05,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425410781] [2020-10-16 12:03:05,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:03:05,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:03:05,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425410781] [2020-10-16 12:03:05,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:03:05,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:03:05,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557560664] [2020-10-16 12:03:05,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:03:05,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:03:05,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:03:05,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:03:05,842 INFO L87 Difference]: Start difference. First operand 474 states and 1420 transitions. Second operand 6 states. [2020-10-16 12:03:06,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:03:06,020 INFO L93 Difference]: Finished difference Result 538 states and 1600 transitions. [2020-10-16 12:03:06,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:03:06,021 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-16 12:03:06,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:03:06,026 INFO L225 Difference]: With dead ends: 538 [2020-10-16 12:03:06,026 INFO L226 Difference]: Without dead ends: 538 [2020-10-16 12:03:06,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:03:06,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-10-16 12:03:06,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2020-10-16 12:03:06,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-10-16 12:03:06,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1600 transitions. [2020-10-16 12:03:06,046 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1600 transitions. Word has length 13 [2020-10-16 12:03:06,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:03:06,046 INFO L481 AbstractCegarLoop]: Abstraction has 538 states and 1600 transitions. [2020-10-16 12:03:06,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:03:06,046 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1600 transitions. [2020-10-16 12:03:06,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:03:06,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:06,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:06,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:03:06,049 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:06,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:06,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1595390273, now seen corresponding path program 1 times [2020-10-16 12:03:06,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:06,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786523416] [2020-10-16 12:03:06,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:03:06,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:03:06,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786523416] [2020-10-16 12:03:06,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:03:06,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:03:06,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036693790] [2020-10-16 12:03:06,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:03:06,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:03:06,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:03:06,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:03:06,182 INFO L87 Difference]: Start difference. First operand 538 states and 1600 transitions. Second operand 4 states. [2020-10-16 12:03:06,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:03:06,221 INFO L93 Difference]: Finished difference Result 526 states and 1385 transitions. [2020-10-16 12:03:06,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:03:06,222 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 12:03:06,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:03:06,225 INFO L225 Difference]: With dead ends: 526 [2020-10-16 12:03:06,225 INFO L226 Difference]: Without dead ends: 382 [2020-10-16 12:03:06,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:03:06,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2020-10-16 12:03:06,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2020-10-16 12:03:06,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-10-16 12:03:06,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 976 transitions. [2020-10-16 12:03:06,237 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 976 transitions. Word has length 13 [2020-10-16 12:03:06,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:03:06,238 INFO L481 AbstractCegarLoop]: Abstraction has 382 states and 976 transitions. [2020-10-16 12:03:06,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:03:06,238 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 976 transitions. [2020-10-16 12:03:06,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 12:03:06,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:06,239 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:06,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:03:06,240 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:06,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:06,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1177042995, now seen corresponding path program 1 times [2020-10-16 12:03:06,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:06,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991304942] [2020-10-16 12:03:06,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:03:06,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:03:06,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991304942] [2020-10-16 12:03:06,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:03:06,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:03:06,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144597139] [2020-10-16 12:03:06,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:03:06,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:03:06,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:03:06,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:03:06,325 INFO L87 Difference]: Start difference. First operand 382 states and 976 transitions. Second operand 5 states. [2020-10-16 12:03:06,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:03:06,371 INFO L93 Difference]: Finished difference Result 312 states and 733 transitions. [2020-10-16 12:03:06,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:03:06,372 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-16 12:03:06,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:03:06,374 INFO L225 Difference]: With dead ends: 312 [2020-10-16 12:03:06,374 INFO L226 Difference]: Without dead ends: 237 [2020-10-16 12:03:06,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:03:06,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-10-16 12:03:06,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2020-10-16 12:03:06,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-10-16 12:03:06,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 541 transitions. [2020-10-16 12:03:06,381 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 541 transitions. Word has length 14 [2020-10-16 12:03:06,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:03:06,382 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 541 transitions. [2020-10-16 12:03:06,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:03:06,382 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 541 transitions. [2020-10-16 12:03:06,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 12:03:06,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:06,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:06,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:03:06,383 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:06,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:06,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1466680104, now seen corresponding path program 1 times [2020-10-16 12:03:06,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:06,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605641122] [2020-10-16 12:03:06,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:03:06,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:03:06,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605641122] [2020-10-16 12:03:06,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:03:06,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:03:06,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773097847] [2020-10-16 12:03:06,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:03:06,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:03:06,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:03:06,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:03:06,473 INFO L87 Difference]: Start difference. First operand 237 states and 541 transitions. Second operand 6 states. [2020-10-16 12:03:06,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:03:06,530 INFO L93 Difference]: Finished difference Result 213 states and 491 transitions. [2020-10-16 12:03:06,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:03:06,531 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-16 12:03:06,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:03:06,532 INFO L225 Difference]: With dead ends: 213 [2020-10-16 12:03:06,532 INFO L226 Difference]: Without dead ends: 197 [2020-10-16 12:03:06,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:03:06,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-10-16 12:03:06,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 173. [2020-10-16 12:03:06,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-10-16 12:03:06,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 407 transitions. [2020-10-16 12:03:06,538 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 407 transitions. Word has length 17 [2020-10-16 12:03:06,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:03:06,539 INFO L481 AbstractCegarLoop]: Abstraction has 173 states and 407 transitions. [2020-10-16 12:03:06,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:03:06,539 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 407 transitions. [2020-10-16 12:03:06,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 12:03:06,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:06,540 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:06,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:03:06,540 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:06,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:06,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1124172184, now seen corresponding path program 1 times [2020-10-16 12:03:06,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:06,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478335186] [2020-10-16 12:03:06,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:03:06,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:03:06,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478335186] [2020-10-16 12:03:06,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:03:06,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:03:06,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069329382] [2020-10-16 12:03:06,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:03:06,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:03:06,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:03:06,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:03:06,595 INFO L87 Difference]: Start difference. First operand 173 states and 407 transitions. Second operand 4 states. [2020-10-16 12:03:06,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:03:06,614 INFO L93 Difference]: Finished difference Result 239 states and 545 transitions. [2020-10-16 12:03:06,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:03:06,615 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-10-16 12:03:06,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:03:06,616 INFO L225 Difference]: With dead ends: 239 [2020-10-16 12:03:06,617 INFO L226 Difference]: Without dead ends: 109 [2020-10-16 12:03:06,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:03:06,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-16 12:03:06,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-16 12:03:06,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-16 12:03:06,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 223 transitions. [2020-10-16 12:03:06,621 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 223 transitions. Word has length 21 [2020-10-16 12:03:06,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:03:06,621 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 223 transitions. [2020-10-16 12:03:06,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:03:06,622 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 223 transitions. [2020-10-16 12:03:06,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 12:03:06,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:06,623 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:06,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:03:06,623 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:06,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:06,623 INFO L82 PathProgramCache]: Analyzing trace with hash -703904360, now seen corresponding path program 2 times [2020-10-16 12:03:06,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:06,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464706416] [2020-10-16 12:03:06,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:03:06,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:03:06,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464706416] [2020-10-16 12:03:06,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:03:06,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:03:06,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771608554] [2020-10-16 12:03:06,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 12:03:06,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:03:06,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 12:03:06,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:03:06,944 INFO L87 Difference]: Start difference. First operand 109 states and 223 transitions. Second operand 8 states. [2020-10-16 12:03:07,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:03:07,103 INFO L93 Difference]: Finished difference Result 152 states and 299 transitions. [2020-10-16 12:03:07,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:03:07,104 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-10-16 12:03:07,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:03:07,105 INFO L225 Difference]: With dead ends: 152 [2020-10-16 12:03:07,105 INFO L226 Difference]: Without dead ends: 126 [2020-10-16 12:03:07,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-16 12:03:07,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-16 12:03:07,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 97. [2020-10-16 12:03:07,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-16 12:03:07,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 195 transitions. [2020-10-16 12:03:07,110 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 195 transitions. Word has length 21 [2020-10-16 12:03:07,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:03:07,110 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 195 transitions. [2020-10-16 12:03:07,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 12:03:07,110 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 195 transitions. [2020-10-16 12:03:07,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 12:03:07,111 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:03:07,111 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:03:07,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:03:07,111 INFO L429 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:03:07,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:03:07,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1796278554, now seen corresponding path program 3 times [2020-10-16 12:03:07,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:03:07,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470805665] [2020-10-16 12:03:07,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:03:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:03:07,156 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:03:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:03:07,224 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:03:07,278 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 12:03:07,278 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 12:03:07,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 12:03:07,280 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 12:03:07,290 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [922] [922] L3-->L830: Formula: (let ((.cse7 (= 0 (mod ~y$w_buff0_used~0_In87890392 256))) (.cse6 (= (mod ~y$r_buff0_thd0~0_In87890392 256) 0)) (.cse8 (= (mod ~y$w_buff1_used~0_In87890392 256) 0)) (.cse9 (= (mod ~y$r_buff1_thd0~0_In87890392 256) 0))) (let ((.cse3 (or .cse8 .cse9)) (.cse1 (not .cse9)) (.cse2 (not .cse8)) (.cse4 (not .cse6)) (.cse5 (not .cse7)) (.cse0 (or .cse6 .cse7))) (and (or (and .cse0 (or (and .cse1 (= ~y$w_buff1~0_In87890392 ~y~0_Out87890392) .cse2) (and (= ~y~0_In87890392 ~y~0_Out87890392) .cse3))) (and .cse4 .cse5 (= ~y$w_buff0~0_In87890392 ~y~0_Out87890392))) (= ~y$r_buff1_thd0~0_Out87890392 ~y$r_buff1_thd0~0_In87890392) (or (and (= ~y$w_buff1_used~0_Out87890392 ~y$w_buff1_used~0_In87890392) .cse3) (and .cse1 (= ~y$w_buff1_used~0_Out87890392 0) .cse2)) (not (= ULTIMATE.start_assume_abort_if_not_~cond_In87890392 0)) (= ~y$r_buff0_thd0~0_In87890392 ~y$r_buff0_thd0~0_Out87890392) (or (and (= ~y$w_buff0_used~0_Out87890392 0) .cse4 .cse5) (and .cse0 (= ~y$w_buff0_used~0_Out87890392 ~y$w_buff0_used~0_In87890392)))))) InVars {ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_In87890392, ~y$w_buff0_used~0=~y$w_buff0_used~0_In87890392, ~y$w_buff1~0=~y$w_buff1~0_In87890392, ~y$r_buff0_thd0~0=~y$r_buff0_thd0~0_In87890392, ~y$w_buff0~0=~y$w_buff0~0_In87890392, ~y~0=~y~0_In87890392, ~y$r_buff1_thd0~0=~y$r_buff1_thd0~0_In87890392, ~y$w_buff1_used~0=~y$w_buff1_used~0_In87890392} OutVars{~y$w_buff0_used~0=~y$w_buff0_used~0_Out87890392, ULTIMATE.start_main_#t~ite17=|ULTIMATE.start_main_#t~ite17_Out87890392|, ULTIMATE.start_main_#t~ite18=|ULTIMATE.start_main_#t~ite18_Out87890392|, ULTIMATE.start_main_#t~ite19=|ULTIMATE.start_main_#t~ite19_Out87890392|, ULTIMATE.start_main_#t~ite20=|ULTIMATE.start_main_#t~ite20_Out87890392|, ULTIMATE.start_main_#t~ite21=|ULTIMATE.start_main_#t~ite21_Out87890392|, ULTIMATE.start_main_#t~ite22=|ULTIMATE.start_main_#t~ite22_Out87890392|, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_In87890392, ~y$w_buff1~0=~y$w_buff1~0_In87890392, ~y$r_buff0_thd0~0=~y$r_buff0_thd0~0_Out87890392, ~y$w_buff0~0=~y$w_buff0~0_In87890392, ~y~0=~y~0_Out87890392, ~y$r_buff1_thd0~0=~y$r_buff1_thd0~0_Out87890392, ~y$w_buff1_used~0=~y$w_buff1_used~0_Out87890392} AuxVars[] AssignedVars[~y$w_buff0_used~0, ULTIMATE.start_main_#t~ite17, ULTIMATE.start_main_#t~ite18, ULTIMATE.start_main_#t~ite19, ~y$r_buff0_thd0~0, ULTIMATE.start_main_#t~ite20, ~y~0, ULTIMATE.start_main_#t~ite21, ~y$r_buff1_thd0~0, ULTIMATE.start_main_#t~ite22, ~y$w_buff1_used~0] because there is no mapped edge [2020-10-16 12:03:07,296 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,296 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,298 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,298 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,298 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,299 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,299 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,299 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,299 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,299 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,300 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,300 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,300 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,300 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,301 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,301 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,301 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,301 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,301 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,302 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,302 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,302 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,302 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,302 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,303 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,303 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,304 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,304 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,304 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,304 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,304 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,305 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,305 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,305 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,305 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,305 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,306 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,306 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,306 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,306 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,306 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,307 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,307 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,307 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,307 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:03:07,307 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:03:07,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:03:07 BasicIcfg [2020-10-16 12:03:07,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:03:07,412 INFO L168 Benchmark]: Toolchain (without parser) took 14375.45 ms. Allocated memory was 139.5 MB in the beginning and 348.7 MB in the end (delta: 209.2 MB). Free memory was 101.0 MB in the beginning and 253.3 MB in the end (delta: -152.3 MB). Peak memory consumption was 56.9 MB. Max. memory is 7.1 GB. [2020-10-16 12:03:07,414 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-16 12:03:07,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.53 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.6 MB in the beginning and 154.5 MB in the end (delta: -54.0 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-10-16 12:03:07,415 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.66 ms. Allocated memory is still 202.9 MB. Free memory was 154.5 MB in the beginning and 151.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-16 12:03:07,416 INFO L168 Benchmark]: Boogie Preprocessor took 39.87 ms. Allocated memory is still 202.9 MB. Free memory was 151.6 MB in the beginning and 148.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-16 12:03:07,418 INFO L168 Benchmark]: RCFGBuilder took 2029.77 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 148.7 MB in the beginning and 192.3 MB in the end (delta: -43.6 MB). Peak memory consumption was 101.7 MB. Max. memory is 7.1 GB. [2020-10-16 12:03:07,419 INFO L168 Benchmark]: TraceAbstraction took 11517.86 ms. Allocated memory was 246.9 MB in the beginning and 348.7 MB in the end (delta: 101.7 MB). Free memory was 192.3 MB in the beginning and 253.3 MB in the end (delta: -61.0 MB). Peak memory consumption was 40.7 MB. Max. memory is 7.1 GB. [2020-10-16 12:03:07,426 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 715.53 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.6 MB in the beginning and 154.5 MB in the end (delta: -54.0 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 66.66 ms. Allocated memory is still 202.9 MB. Free memory was 154.5 MB in the beginning and 151.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.87 ms. Allocated memory is still 202.9 MB. Free memory was 151.6 MB in the beginning and 148.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2029.77 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 148.7 MB in the beginning and 192.3 MB in the end (delta: -43.6 MB). Peak memory consumption was 101.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11517.86 ms. Allocated memory was 246.9 MB in the beginning and 348.7 MB in the end (delta: 101.7 MB). Free memory was 192.3 MB in the beginning and 253.3 MB in the end (delta: -61.0 MB). Peak memory consumption was 40.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 911 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 76 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 8.4s, 104 PlacesBefore, 36 PlacesAfterwards, 96 TransitionsBefore, 26 TransitionsAfterwards, 1692 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 81 TotalNumberOfCompositions, 4278 MoverChecksTotal - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L698] 0 int __unbuffered_cnt = 0; [L700] 0 int __unbuffered_p0_EAX = 0; [L702] 0 int __unbuffered_p2_EAX = 0; [L704] 0 int __unbuffered_p2_EBX = 0; [L706] 0 int a = 0; [L707] 0 _Bool main$tmp_guard0; [L708] 0 _Bool main$tmp_guard1; [L710] 0 int x = 0; [L712] 0 int y = 0; [L713] 0 _Bool y$flush_delayed; [L714] 0 int y$mem_tmp; [L715] 0 _Bool y$r_buff0_thd0; [L716] 0 _Bool y$r_buff0_thd1; [L717] 0 _Bool y$r_buff0_thd2; [L718] 0 _Bool y$r_buff0_thd3; [L719] 0 _Bool y$r_buff1_thd0; [L720] 0 _Bool y$r_buff1_thd1; [L721] 0 _Bool y$r_buff1_thd2; [L722] 0 _Bool y$r_buff1_thd3; [L723] 0 _Bool y$read_delayed; [L724] 0 int *y$read_delayed_var; [L725] 0 int y$w_buff0; [L726] 0 _Bool y$w_buff0_used; [L727] 0 int y$w_buff1; [L728] 0 _Bool y$w_buff1_used; [L730] 0 int z = 0; [L731] 0 _Bool weak$$choice0; [L732] 0 _Bool weak$$choice2; [L814] 0 pthread_t t1114; [L815] FCALL, FORK 0 pthread_create(&t1114, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=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_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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, z=0] [L816] 0 pthread_t t1115; [L817] FCALL, FORK 0 pthread_create(&t1115, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, 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_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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, z=0] [L818] 0 pthread_t t1116; [L819] FCALL, FORK 0 pthread_create(&t1116, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, 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_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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, z=0] [L771] 3 y$w_buff1 = y$w_buff0 [L772] 3 y$w_buff0 = 2 [L773] 3 y$w_buff1_used = y$w_buff0_used [L774] 3 y$w_buff0_used = (_Bool)1 [L7] COND TRUE 3 !expression [L7] 3 __VERIFIER_error() [L776] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L777] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L778] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L779] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L780] 3 y$r_buff0_thd3 = (_Bool)1 [L783] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$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_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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, z=1] [L786] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, 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_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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, z=1] [L789] 3 __unbuffered_p2_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, 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_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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, z=1] [L736] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, 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_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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, z=1] [L739] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, 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_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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, z=1] [L744] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L746] 1 return 0; [L751] 2 x = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, 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=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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, z=1] [L754] 2 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, 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=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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, z=1] [L792] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L792] EXPR 3 y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y [L792] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L792] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L793] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L793] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L794] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L794] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L795] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L795] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L796] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L796] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L799] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L801] 3 return 0; [L757] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L757] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L758] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L758] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L759] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L759] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L760] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L760] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L761] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L761] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L764] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L766] 2 return 0; [L821] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L832] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L833] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L834] 0 y$flush_delayed = weak$$choice2 [L835] 0 y$mem_tmp = y [L836] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L836] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L837] EXPR 0 weak$$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$w_buff0)) [L837] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L838] EXPR 0 weak$$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$w_buff1)) [L838] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L839] EXPR 0 weak$$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)) [L839] 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) [L839] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L839] 0 y$w_buff0_used = weak$$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)) [L840] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] 0 y$w_buff1_used = weak$$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)) [L841] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L841] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0) [L841] EXPR 0 weak$$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)) [L841] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L842] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L842] EXPR 0 !y$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) [L842] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L842] 0 y$r_buff1_thd0 = weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L843] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L844] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L844] 0 y = y$flush_delayed ? y$mem_tmp : y [L845] 0 y$flush_delayed = (_Bool)0 [L7] COND TRUE 0 !expression [L7] 0 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=7, weak$$choice2=255, x=1, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 95 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.5s, HoareTripleCheckerStatistics: 227 SDtfs, 266 SDslu, 411 SDs, 0 SdLazy, 193 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=750occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 53 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 13427 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...