/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/mix041_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:11:22,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:11:22,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:11:22,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:11:22,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:11:22,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:11:22,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:11:22,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:11:22,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:11:22,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:11:22,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:11:22,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:11:22,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:11:22,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:11:22,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:11:22,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:11:22,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:11:22,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:11:22,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:11:22,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:11:22,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:11:22,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:11:22,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:11:22,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:11:22,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:11:22,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:11:22,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:11:22,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:11:22,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:11:22,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:11:22,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:11:22,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:11:22,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:11:22,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:11:22,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:11:22,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:11:22,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:11:22,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:11:22,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:11:22,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:11:22,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:11:22,880 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 13:11:22,907 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:11:22,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:11:22,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:11:22,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:11:22,909 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:11:22,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:11:22,909 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:11:22,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:11:22,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:11:22,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:11:22,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:11:22,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:11:22,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:11:22,911 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:11:22,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:11:22,911 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:11:22,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:11:22,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:11:22,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:11:22,912 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:11:22,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:11:22,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:11:22,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:11:22,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:11:22,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:11:22,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:11:22,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:11:22,914 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:11:22,914 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:11:22,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:11:22,914 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:11:23,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:11:23,270 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:11:23,274 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:11:23,275 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:11:23,276 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:11:23,277 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix041_power.opt.i [2020-10-16 13:11:23,349 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/93838f6bf/75fea4aa448d41e0a7e28a9bc86a3c6b/FLAG4690c0fbd [2020-10-16 13:11:23,892 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:11:23,893 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/mix041_power.opt.i [2020-10-16 13:11:23,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/93838f6bf/75fea4aa448d41e0a7e28a9bc86a3c6b/FLAG4690c0fbd [2020-10-16 13:11:24,129 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/93838f6bf/75fea4aa448d41e0a7e28a9bc86a3c6b [2020-10-16 13:11:24,138 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:11:24,140 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:11:24,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:11:24,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:11:24,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:11:24,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:11:24" (1/1) ... [2020-10-16 13:11:24,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1babefc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:11:24, skipping insertion in model container [2020-10-16 13:11:24,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:11:24" (1/1) ... [2020-10-16 13:11:24,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:11:24,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:11:24,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:11:24,791 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:11:24,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:11:24,928 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:11:24,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:11:24 WrapperNode [2020-10-16 13:11:24,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:11:24,930 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:11:24,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:11:24,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:11:24,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:11:24" (1/1) ... [2020-10-16 13:11:24,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:11:24" (1/1) ... [2020-10-16 13:11:24,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:11:24,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:11:24,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:11:24,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:11:25,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:11:24" (1/1) ... [2020-10-16 13:11:25,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:11:24" (1/1) ... [2020-10-16 13:11:25,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:11:24" (1/1) ... [2020-10-16 13:11:25,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:11:24" (1/1) ... [2020-10-16 13:11:25,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:11:24" (1/1) ... [2020-10-16 13:11:25,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:11:24" (1/1) ... [2020-10-16 13:11:25,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:11:24" (1/1) ... [2020-10-16 13:11:25,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:11:25,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:11:25,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:11:25,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:11:25,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:11:24" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:11:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:11:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:11:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:11:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:11:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:11:25,132 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:11:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:11:25,133 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:11:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:11:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:11:25,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:11:25,137 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:11:27,039 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:11:27,040 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-16 13:11:27,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:11:27 BoogieIcfgContainer [2020-10-16 13:11:27,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:11:27,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:11:27,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:11:27,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:11:27,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:11:24" (1/3) ... [2020-10-16 13:11:27,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34df8569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:11:27, skipping insertion in model container [2020-10-16 13:11:27,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:11:24" (2/3) ... [2020-10-16 13:11:27,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34df8569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:11:27, skipping insertion in model container [2020-10-16 13:11:27,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:11:27" (3/3) ... [2020-10-16 13:11:27,051 INFO L111 eAbstractionObserver]: Analyzing ICFG mix041_power.opt.i [2020-10-16 13:11:27,063 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:11:27,064 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:11:27,072 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 13:11:27,073 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:11:27,100 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,101 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,101 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,104 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,105 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,105 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,105 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,105 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,105 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,105 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,106 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,107 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,107 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,108 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,108 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,108 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,108 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,108 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,109 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,109 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,111 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,111 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,112 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,112 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,112 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,112 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,113 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,113 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,113 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,113 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,118 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,118 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,118 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,118 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,118 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,119 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,119 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,119 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,119 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,120 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,122 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,122 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,122 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,124 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,124 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,124 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:11:27,125 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:11:27,140 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 13:11:27,162 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:11:27,162 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:11:27,163 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:11:27,163 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:11:27,163 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:11:27,163 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:11:27,163 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:11:27,163 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:11:27,182 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:11:27,183 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 79 transitions, 168 flow [2020-10-16 13:11:27,185 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 79 transitions, 168 flow [2020-10-16 13:11:27,187 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 79 transitions, 168 flow [2020-10-16 13:11:27,243 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-10-16 13:11:27,243 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:11:27,251 INFO L80 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2020-10-16 13:11:27,255 INFO L117 LiptonReduction]: Number of co-enabled transitions 1012 [2020-10-16 13:11:29,161 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 226 DAG size of output: 185 [2020-10-16 13:11:29,210 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 2, 1] term [2020-10-16 13:11:29,210 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 13:11:29,213 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 1] term [2020-10-16 13:11:29,213 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 13:11:29,983 WARN L193 SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 121 [2020-10-16 13:11:31,276 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 107 [2020-10-16 13:11:31,605 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-16 13:11:32,503 WARN L193 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 118 [2020-10-16 13:11:32,794 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-16 13:11:33,406 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 108 [2020-10-16 13:11:33,691 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-16 13:11:34,221 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-16 13:11:34,560 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-16 13:11:34,990 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-16 13:11:35,127 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-16 13:11:35,132 INFO L132 LiptonReduction]: Checked pairs total: 2524 [2020-10-16 13:11:35,133 INFO L134 LiptonReduction]: Total number of compositions: 71 [2020-10-16 13:11:35,140 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 20 transitions, 50 flow [2020-10-16 13:11:35,159 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 187 states. [2020-10-16 13:11:35,162 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states. [2020-10-16 13:11:35,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-16 13:11:35,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:11:35,169 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 13:11:35,169 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:11:35,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:11:35,176 INFO L82 PathProgramCache]: Analyzing trace with hash 876715816, now seen corresponding path program 1 times [2020-10-16 13:11:35,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:11:35,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079783514] [2020-10-16 13:11:35,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:11:35,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:11:35,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:11:35,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079783514] [2020-10-16 13:11:35,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:11:35,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:11:35,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1366935185] [2020-10-16 13:11:35,411 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:11:35,415 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:11:35,426 INFO L258 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-10-16 13:11:35,426 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:11:35,430 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:11:35,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:11:35,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:11:35,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:11:35,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:11:35,443 INFO L87 Difference]: Start difference. First operand 187 states. Second operand 3 states. [2020-10-16 13:11:35,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:11:35,535 INFO L93 Difference]: Finished difference Result 162 states and 385 transitions. [2020-10-16 13:11:35,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:11:35,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-16 13:11:35,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:11:35,558 INFO L225 Difference]: With dead ends: 162 [2020-10-16 13:11:35,558 INFO L226 Difference]: Without dead ends: 132 [2020-10-16 13:11:35,561 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 13:11:35,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-16 13:11:35,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-10-16 13:11:35,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-16 13:11:35,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 306 transitions. [2020-10-16 13:11:35,650 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 306 transitions. Word has length 5 [2020-10-16 13:11:35,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:11:35,650 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 306 transitions. [2020-10-16 13:11:35,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:11:35,650 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 306 transitions. [2020-10-16 13:11:35,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-16 13:11:35,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:11:35,651 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:11:35,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:11:35,652 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:11:35,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:11:35,652 INFO L82 PathProgramCache]: Analyzing trace with hash 710372191, now seen corresponding path program 1 times [2020-10-16 13:11:35,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:11:35,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305973616] [2020-10-16 13:11:35,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:11:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:11:35,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:11:35,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305973616] [2020-10-16 13:11:35,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:11:35,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:11:35,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1858745706] [2020-10-16 13:11:35,712 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:11:35,713 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:11:35,716 INFO L258 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-16 13:11:35,716 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:11:35,716 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:11:35,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:11:35,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:11:35,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:11:35,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:11:35,719 INFO L87 Difference]: Start difference. First operand 132 states and 306 transitions. Second operand 3 states. [2020-10-16 13:11:35,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:11:35,729 INFO L93 Difference]: Finished difference Result 72 states and 126 transitions. [2020-10-16 13:11:35,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:11:35,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-16 13:11:35,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:11:35,731 INFO L225 Difference]: With dead ends: 72 [2020-10-16 13:11:35,731 INFO L226 Difference]: Without dead ends: 72 [2020-10-16 13:11:35,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:11:35,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-16 13:11:35,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-16 13:11:35,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-16 13:11:35,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 126 transitions. [2020-10-16 13:11:35,738 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 126 transitions. Word has length 7 [2020-10-16 13:11:35,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:11:35,738 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 126 transitions. [2020-10-16 13:11:35,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:11:35,738 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 126 transitions. [2020-10-16 13:11:35,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 13:11:35,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:11:35,739 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:11:35,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:11:35,740 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:11:35,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:11:35,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1630145943, now seen corresponding path program 1 times [2020-10-16 13:11:35,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:11:35,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794128605] [2020-10-16 13:11:35,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:11:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:11:35,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:11:35,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794128605] [2020-10-16 13:11:35,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:11:35,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:11:35,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [662831441] [2020-10-16 13:11:35,834 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:11:35,836 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:11:35,840 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 27 transitions. [2020-10-16 13:11:35,840 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:11:35,933 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:11:35,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:11:35,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:11:35,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:11:35,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:11:35,935 INFO L87 Difference]: Start difference. First operand 72 states and 126 transitions. Second operand 4 states. [2020-10-16 13:11:35,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:11:35,961 INFO L93 Difference]: Finished difference Result 45 states and 72 transitions. [2020-10-16 13:11:35,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:11:35,961 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 13:11:35,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:11:35,962 INFO L225 Difference]: With dead ends: 45 [2020-10-16 13:11:35,962 INFO L226 Difference]: Without dead ends: 45 [2020-10-16 13:11:35,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:11:35,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-16 13:11:35,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-16 13:11:35,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-16 13:11:35,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 72 transitions. [2020-10-16 13:11:35,967 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 72 transitions. Word has length 11 [2020-10-16 13:11:35,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:11:35,969 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 72 transitions. [2020-10-16 13:11:35,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:11:35,969 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 72 transitions. [2020-10-16 13:11:35,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 13:11:35,970 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:11:35,970 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:11:35,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:11:35,971 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:11:35,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:11:35,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1709371184, now seen corresponding path program 1 times [2020-10-16 13:11:35,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:11:35,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052974913] [2020-10-16 13:11:35,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:11:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:11:36,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:11:36,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052974913] [2020-10-16 13:11:36,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:11:36,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 13:11:36,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1660392728] [2020-10-16 13:11:36,660 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:11:36,664 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:11:36,669 INFO L258 McrAutomatonBuilder]: Finished intersection with 21 states and 24 transitions. [2020-10-16 13:11:36,670 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:11:36,703 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 3, 2, 3, 2, 1] term [2020-10-16 13:11:36,704 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 13:11:36,705 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 3, 2, 1] term [2020-10-16 13:11:36,705 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 13:11:36,708 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-10-16 13:11:36,708 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 13:11:36,711 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 3, 2, 2, 1] term [2020-10-16 13:11:36,711 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 13:11:36,714 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 13:11:36,715 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 13:11:36,716 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 13:11:36,736 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:11:36,738 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:11:36,747 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-10-16 13:11:36,749 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 5 conjuncts [2020-10-16 13:11:36,751 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:11:36,771 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-10-16 13:11:36,791 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 5 conjuncts [2020-10-16 13:11:36,793 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:11:36,806 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-10-16 13:11:36,816 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:11:36,817 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:11:36,823 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:11:36,824 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:11:36,830 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 13:11:36,831 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-16 13:11:36,843 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[6, 6, 4, 2, 3, 2, 1] term [2020-10-16 13:11:36,844 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 13:11:36,879 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 2, 1] term [2020-10-16 13:11:36,879 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 13:11:36,881 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 3, 2, 2, 1] term [2020-10-16 13:11:36,881 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 13:11:36,883 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 13:11:36,884 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 13:11:36,884 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-16 13:11:36,891 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-16 13:11:36,895 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 5 conjuncts [2020-10-16 13:11:36,899 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:11:36,909 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-10-16 13:11:36,916 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-16 13:11:36,929 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 13:11:36,930 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 13:11:36,943 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:11:36,944 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-16 13:11:36,953 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-16 13:11:36,956 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[6, 7, 4, 2, 3, 2, 1] term [2020-10-16 13:11:36,956 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-16 13:11:37,122 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2020-10-16 13:11:37,127 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1256#(and (< 0 (+ (div ~x$r_buff0_thd1~0 256) 1)) (<= ~x$r_buff0_thd0~0 (* 256 (div ~x$r_buff0_thd0~0 256))) (< 0 (+ (div ~x$r_buff0_thd0~0 256) 1)) (not (= 2 ~x$w_buff1~0)) (<= ~x$r_buff0_thd1~0 (* 256 (div ~x$r_buff0_thd1~0 256))) (or (and (<= ~x$w_buff0_used~0 0) (<= 0 ~x$w_buff0_used~0)) (and (not (= (mod ~x$r_buff0_thd2~0 256) 0)) (not (= (mod ~x$w_buff0_used~0 256) 0)))))] [2020-10-16 13:11:37,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-16 13:11:37,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:11:37,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-16 13:11:37,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-16 13:11:37,129 INFO L87 Difference]: Start difference. First operand 45 states and 72 transitions. Second operand 9 states. [2020-10-16 13:11:37,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:11:37,390 INFO L93 Difference]: Finished difference Result 53 states and 81 transitions. [2020-10-16 13:11:37,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 13:11:37,392 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-10-16 13:11:37,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:11:37,393 INFO L225 Difference]: With dead ends: 53 [2020-10-16 13:11:37,393 INFO L226 Difference]: Without dead ends: 41 [2020-10-16 13:11:37,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-16 13:11:37,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-16 13:11:37,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-16 13:11:37,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-16 13:11:37,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 64 transitions. [2020-10-16 13:11:37,398 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 64 transitions. Word has length 16 [2020-10-16 13:11:37,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:11:37,398 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 64 transitions. [2020-10-16 13:11:37,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-16 13:11:37,398 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 64 transitions. [2020-10-16 13:11:37,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 13:11:37,399 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:11:37,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:11:37,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:11:37,400 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:11:37,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:11:37,400 INFO L82 PathProgramCache]: Analyzing trace with hash 2065395760, now seen corresponding path program 2 times [2020-10-16 13:11:37,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:11:37,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536806627] [2020-10-16 13:11:37,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:11:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 13:11:37,466 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 13:11:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 13:11:37,518 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 13:11:37,570 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 13:11:37,571 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 13:11:37,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:11:37,572 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 13:11:37,581 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [887] [887] L794-1-->L2-1: Formula: (and (= (mod ~main$tmp_guard0~0_Out1870256173 256) |ULTIMATE.start_assume_abort_if_not_#in~cond_Out1870256173|) (= ULTIMATE.start_assume_abort_if_not_~cond_Out1870256173 |ULTIMATE.start_assume_abort_if_not_#in~cond_Out1870256173|) (= 2 ~__unbuffered_cnt~0_In1870256173) (= ~main$tmp_guard0~0_Out1870256173 1)) InVars {~__unbuffered_cnt~0=~__unbuffered_cnt~0_In1870256173} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_Out1870256173|, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out1870256173, ULTIMATE.start_main_#t~nondet15=|ULTIMATE.start_main_#t~nondet15_Out1870256173|, ~__unbuffered_cnt~0=~__unbuffered_cnt~0_In1870256173, ~main$tmp_guard0~0=~main$tmp_guard0~0_Out1870256173} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet15, ~main$tmp_guard0~0] because there is no mapped edge [2020-10-16 13:11:37,588 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 13:11:37,588 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,593 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 13:11:37,593 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,593 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 13:11:37,594 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,594 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 13:11:37,594 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,594 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 13:11:37,594 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,594 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 13:11:37,595 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,596 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 13:11:37,596 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,596 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 13:11:37,596 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,597 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 13:11:37,597 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,597 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 13:11:37,597 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,597 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 13:11:37,598 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,598 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 13:11:37,598 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,598 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 13:11:37,598 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,599 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 13:11:37,599 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,599 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 13:11:37,600 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,602 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 13:11:37,603 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,603 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 13:11:37,604 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,611 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 13:11:37,611 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,611 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 13:11:37,611 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,612 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 13:11:37,612 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,614 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 13:11:37,614 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,614 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 13:11:37,614 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,615 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 13:11:37,615 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,615 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 13:11:37,615 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,615 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 13:11:37,615 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,616 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 13:11:37,616 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,616 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 13:11:37,616 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,616 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 13:11:37,617 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,617 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 13:11:37,618 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 13:11:37,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:11:37 BasicIcfg [2020-10-16 13:11:37,706 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:11:37,709 INFO L168 Benchmark]: Toolchain (without parser) took 13568.82 ms. Allocated memory was 137.9 MB in the beginning and 371.7 MB in the end (delta: 233.8 MB). Free memory was 99.8 MB in the beginning and 295.4 MB in the end (delta: -195.6 MB). Peak memory consumption was 38.2 MB. Max. memory is 7.1 GB. [2020-10-16 13:11:37,709 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 13:11:37,712 INFO L168 Benchmark]: CACSL2BoogieTranslator took 787.79 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 99.4 MB in the beginning and 157.7 MB in the end (delta: -58.3 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:11:37,713 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.84 ms. Allocated memory is still 200.8 MB. Free memory was 157.7 MB in the beginning and 154.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:11:37,714 INFO L168 Benchmark]: Boogie Preprocessor took 64.55 ms. Allocated memory is still 200.8 MB. Free memory was 154.8 MB in the beginning and 152.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:11:37,715 INFO L168 Benchmark]: RCFGBuilder took 1979.76 ms. Allocated memory was 200.8 MB in the beginning and 253.8 MB in the end (delta: 53.0 MB). Free memory was 152.7 MB in the beginning and 211.8 MB in the end (delta: -59.1 MB). Peak memory consumption was 107.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:11:37,716 INFO L168 Benchmark]: TraceAbstraction took 10662.86 ms. Allocated memory was 253.8 MB in the beginning and 371.7 MB in the end (delta: 118.0 MB). Free memory was 211.8 MB in the beginning and 295.4 MB in the end (delta: -83.6 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:11:37,720 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 787.79 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 99.4 MB in the beginning and 157.7 MB in the end (delta: -58.3 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 67.84 ms. Allocated memory is still 200.8 MB. Free memory was 157.7 MB in the beginning and 154.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 64.55 ms. Allocated memory is still 200.8 MB. Free memory was 154.8 MB in the beginning and 152.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1979.76 ms. Allocated memory was 200.8 MB in the beginning and 253.8 MB in the end (delta: 53.0 MB). Free memory was 152.7 MB in the beginning and 211.8 MB in the end (delta: -59.1 MB). Peak memory consumption was 107.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10662.86 ms. Allocated memory was 253.8 MB in the beginning and 371.7 MB in the end (delta: 118.0 MB). Free memory was 211.8 MB in the beginning and 295.4 MB in the end (delta: -83.6 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 534 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 38 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 7.9s, 84 PlacesBefore, 27 PlacesAfterwards, 79 TransitionsBefore, 20 TransitionsAfterwards, 1012 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 71 TotalNumberOfCompositions, 2524 MoverChecksTotal - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L697] 0 int __unbuffered_cnt = 0; [L699] 0 int __unbuffered_p1_EAX = 0; [L701] 0 int __unbuffered_p1_EBX = 0; [L702] 0 _Bool main$tmp_guard0; [L703] 0 _Bool main$tmp_guard1; [L705] 0 int x = 0; [L706] 0 _Bool x$flush_delayed; [L707] 0 int x$mem_tmp; [L708] 0 _Bool x$r_buff0_thd0; [L709] 0 _Bool x$r_buff0_thd1; [L710] 0 _Bool x$r_buff0_thd2; [L711] 0 _Bool x$r_buff1_thd0; [L712] 0 _Bool x$r_buff1_thd1; [L713] 0 _Bool x$r_buff1_thd2; [L714] 0 _Bool x$read_delayed; [L715] 0 int *x$read_delayed_var; [L716] 0 int x$w_buff0; [L717] 0 _Bool x$w_buff0_used; [L718] 0 int x$w_buff1; [L719] 0 _Bool x$w_buff1_used; [L721] 0 int y = 0; [L723] 0 int z = 0; [L724] 0 _Bool weak$$choice0; [L725] 0 _Bool weak$$choice2; [L791] 0 pthread_t t1091; [L792] FCALL, FORK 0 pthread_create(&t1091, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L793] 0 pthread_t t1092; [L794] FCALL, FORK 0 pthread_create(&t1092, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L749] 2 x$w_buff1 = x$w_buff0 [L750] 2 x$w_buff0 = 2 [L751] 2 x$w_buff1_used = x$w_buff0_used [L752] 2 x$w_buff0_used = (_Bool)1 [L7] COND TRUE 2 !expression [L7] 2 __VERIFIER_error() [L754] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L755] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L756] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L757] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L760] 2 y = 1 [L763] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L766] 2 __unbuffered_p1_EBX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L729] 1 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L732] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L735] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L735] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L736] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L736] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L737] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L737] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L738] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L738] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L739] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L739] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L742] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L744] 1 return 0; [L769] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L769] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L770] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L770] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L771] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L771] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L772] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L772] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L773] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L773] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L776] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L778] 2 return 0; [L800] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L800] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L800] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L800] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L801] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L801] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L802] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L802] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L803] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L803] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L804] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L804] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L807] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L808] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L809] 0 x$flush_delayed = weak$$choice2 [L810] 0 x$mem_tmp = x [L811] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L811] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L812] EXPR 0 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L812] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L813] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L813] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1) [L813] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1 [L813] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1) [L813] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L813] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L814] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L814] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used) [L814] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L814] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L815] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L815] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L815] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L815] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L816] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L816] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L817] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L817] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L818] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L819] EXPR 0 x$flush_delayed ? x$mem_tmp : x [L819] 0 x = x$flush_delayed ? x$mem_tmp : x [L820] 0 x$flush_delayed = (_Bool)0 [L7] COND TRUE 0 !expression [L7] 0 __VERIFIER_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=6, weak$$choice2=255, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 78 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.9s, HoareTripleCheckerStatistics: 57 SDtfs, 58 SDslu, 82 SDs, 0 SdLazy, 67 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=187occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 8282 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...