/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/mix054_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:04:38,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:04:38,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:04:38,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:04:38,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:04:38,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:04:38,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:04:38,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:04:38,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:04:38,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:04:38,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:04:38,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:04:38,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:04:38,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:04:38,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:04:38,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:04:38,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:04:38,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:04:38,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:04:38,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:04:38,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:04:38,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:04:38,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:04:38,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:04:38,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:04:38,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:04:38,091 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:04:38,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:04:38,092 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:04:38,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:04:38,093 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:04:38,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:04:38,094 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:04:38,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:04:38,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:04:38,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:04:38,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:04:38,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:04:38,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:04:38,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:04:38,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:04:38,099 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 12:04:38,121 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:04:38,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:04:38,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:04:38,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:04:38,123 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:04:38,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:04:38,124 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:04:38,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:04:38,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:04:38,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:04:38,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:04:38,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:04:38,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:04:38,125 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:04:38,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:04:38,126 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:04:38,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:04:38,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:04:38,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:04:38,126 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:04:38,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:04:38,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:04:38,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:04:38,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:04:38,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:04:38,128 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:04:38,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:04:38,128 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:04:38,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:04:38,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:04:38,411 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:04:38,414 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:04:38,415 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:04:38,416 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:04:38,416 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix054_rmo.opt.i [2020-10-16 12:04:38,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7f25f453/afcff18a9e174917893debe1c0f473e4/FLAG655a3ef17 [2020-10-16 12:04:38,982 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:04:38,983 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/mix054_rmo.opt.i [2020-10-16 12:04:39,002 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7f25f453/afcff18a9e174917893debe1c0f473e4/FLAG655a3ef17 [2020-10-16 12:04:39,302 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7f25f453/afcff18a9e174917893debe1c0f473e4 [2020-10-16 12:04:39,311 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:04:39,312 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:04:39,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:04:39,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:04:39,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:04:39,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:04:39" (1/1) ... [2020-10-16 12:04:39,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27ab893b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:39, skipping insertion in model container [2020-10-16 12:04:39,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:04:39" (1/1) ... [2020-10-16 12:04:39,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:04:39,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:04:39,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:04:39,878 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:04:39,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:04:40,020 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:04:40,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:40 WrapperNode [2020-10-16 12:04:40,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:04:40,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:04:40,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:04:40,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:04:40,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:40" (1/1) ... [2020-10-16 12:04:40,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:40" (1/1) ... [2020-10-16 12:04:40,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:04:40,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:04:40,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:04:40,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:04:40,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:40" (1/1) ... [2020-10-16 12:04:40,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:40" (1/1) ... [2020-10-16 12:04:40,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:40" (1/1) ... [2020-10-16 12:04:40,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:40" (1/1) ... [2020-10-16 12:04:40,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:40" (1/1) ... [2020-10-16 12:04:40,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:40" (1/1) ... [2020-10-16 12:04:40,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:40" (1/1) ... [2020-10-16 12:04:40,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:04:40,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:04:40,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:04:40,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:04:40,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:40" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:04:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:04:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 12:04:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:04:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:04:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 12:04:40,201 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 12:04:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 12:04:40,202 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 12:04:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 12:04:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:04:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:04:40,207 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:04:41,921 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:04:41,922 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-16 12:04:41,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:04:41 BoogieIcfgContainer [2020-10-16 12:04:41,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:04:41,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:04:41,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:04:41,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:04:41,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:04:39" (1/3) ... [2020-10-16 12:04:41,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d48dff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:04:41, skipping insertion in model container [2020-10-16 12:04:41,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:04:40" (2/3) ... [2020-10-16 12:04:41,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d48dff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:04:41, skipping insertion in model container [2020-10-16 12:04:41,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:04:41" (3/3) ... [2020-10-16 12:04:41,932 INFO L111 eAbstractionObserver]: Analyzing ICFG mix054_rmo.opt.i [2020-10-16 12:04:41,943 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:04:41,943 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:04:41,951 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 12:04:41,952 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:04:41,977 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,977 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,978 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,978 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,979 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,979 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,979 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,979 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,979 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,981 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,981 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,981 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,982 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,982 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,982 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,982 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,983 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,983 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,983 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,983 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,984 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,984 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,984 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,984 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,985 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,985 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,988 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,989 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,989 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,989 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,989 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,990 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,990 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,990 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,990 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,990 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,995 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,995 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,995 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,995 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,995 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,997 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,997 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:04:41,998 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:04:42,012 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 12:04:42,032 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:04:42,032 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:04:42,032 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:04:42,032 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:04:42,032 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:04:42,032 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:04:42,032 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:04:42,033 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:04:42,045 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:04:42,045 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 75 transitions, 160 flow [2020-10-16 12:04:42,048 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 75 transitions, 160 flow [2020-10-16 12:04:42,050 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 80 places, 75 transitions, 160 flow [2020-10-16 12:04:42,088 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2020-10-16 12:04:42,089 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:04:42,093 INFO L80 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2020-10-16 12:04:42,096 INFO L117 LiptonReduction]: Number of co-enabled transitions 888 [2020-10-16 12:04:43,689 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 224 DAG size of output: 184 [2020-10-16 12:04:43,728 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 2, 2, 1] term [2020-10-16 12:04:43,728 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 12:04:43,730 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 1] term [2020-10-16 12:04:43,730 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 12:04:44,463 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 119 [2020-10-16 12:04:44,952 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2020-10-16 12:04:45,056 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-16 12:04:45,759 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-16 12:04:45,863 INFO L132 LiptonReduction]: Checked pairs total: 2462 [2020-10-16 12:04:45,863 INFO L134 LiptonReduction]: Total number of compositions: 65 [2020-10-16 12:04:45,869 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 22 transitions, 54 flow [2020-10-16 12:04:45,891 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 222 states. [2020-10-16 12:04:45,894 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states. [2020-10-16 12:04:45,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-16 12:04:45,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:45,901 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 12:04:45,901 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:45,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:45,907 INFO L82 PathProgramCache]: Analyzing trace with hash 861621042, now seen corresponding path program 1 times [2020-10-16 12:04:45,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:45,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608982482] [2020-10-16 12:04:45,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:46,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:46,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:46,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608982482] [2020-10-16 12:04:46,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:46,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:04:46,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996851249] [2020-10-16 12:04:46,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:04:46,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:46,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:04:46,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:04:46,149 INFO L87 Difference]: Start difference. First operand 222 states. Second operand 3 states. [2020-10-16 12:04:46,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:46,238 INFO L93 Difference]: Finished difference Result 187 states and 450 transitions. [2020-10-16 12:04:46,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:04:46,240 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-16 12:04:46,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:46,253 INFO L225 Difference]: With dead ends: 187 [2020-10-16 12:04:46,253 INFO L226 Difference]: Without dead ends: 137 [2020-10-16 12:04:46,254 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:04:46,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-16 12:04:46,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2020-10-16 12:04:46,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-16 12:04:46,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 320 transitions. [2020-10-16 12:04:46,305 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 320 transitions. Word has length 5 [2020-10-16 12:04:46,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:46,305 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 320 transitions. [2020-10-16 12:04:46,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:04:46,306 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 320 transitions. [2020-10-16 12:04:46,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 12:04:46,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:46,307 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:46,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:04:46,307 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:46,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:46,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1829495527, now seen corresponding path program 1 times [2020-10-16 12:04:46,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:46,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965427412] [2020-10-16 12:04:46,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:46,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:46,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965427412] [2020-10-16 12:04:46,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:46,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:04:46,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360685221] [2020-10-16 12:04:46,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:04:46,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:46,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:04:46,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:04:46,482 INFO L87 Difference]: Start difference. First operand 137 states and 320 transitions. Second operand 5 states. [2020-10-16 12:04:46,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:46,577 INFO L93 Difference]: Finished difference Result 152 states and 337 transitions. [2020-10-16 12:04:46,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:04:46,578 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-10-16 12:04:46,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:46,579 INFO L225 Difference]: With dead ends: 152 [2020-10-16 12:04:46,580 INFO L226 Difference]: Without dead ends: 127 [2020-10-16 12:04:46,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:04:46,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-16 12:04:46,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2020-10-16 12:04:46,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-16 12:04:46,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 292 transitions. [2020-10-16 12:04:46,595 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 292 transitions. Word has length 8 [2020-10-16 12:04:46,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:46,595 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 292 transitions. [2020-10-16 12:04:46,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:04:46,595 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 292 transitions. [2020-10-16 12:04:46,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:04:46,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:46,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:46,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:04:46,597 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:46,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:46,597 INFO L82 PathProgramCache]: Analyzing trace with hash 879762521, now seen corresponding path program 1 times [2020-10-16 12:04:46,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:46,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228703270] [2020-10-16 12:04:46,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:46,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:46,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228703270] [2020-10-16 12:04:46,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:46,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:04:46,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916020023] [2020-10-16 12:04:46,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:04:46,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:46,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:04:46,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:04:46,752 INFO L87 Difference]: Start difference. First operand 127 states and 292 transitions. Second operand 6 states. [2020-10-16 12:04:46,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:46,865 INFO L93 Difference]: Finished difference Result 139 states and 303 transitions. [2020-10-16 12:04:46,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:04:46,866 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-10-16 12:04:46,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:46,868 INFO L225 Difference]: With dead ends: 139 [2020-10-16 12:04:46,868 INFO L226 Difference]: Without dead ends: 119 [2020-10-16 12:04:46,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:04:46,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-16 12:04:46,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2020-10-16 12:04:46,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-16 12:04:46,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 268 transitions. [2020-10-16 12:04:46,877 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 268 transitions. Word has length 9 [2020-10-16 12:04:46,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:46,878 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 268 transitions. [2020-10-16 12:04:46,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:04:46,878 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 268 transitions. [2020-10-16 12:04:46,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:04:46,879 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:46,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:46,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:04:46,880 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:46,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:46,880 INFO L82 PathProgramCache]: Analyzing trace with hash 935963072, now seen corresponding path program 1 times [2020-10-16 12:04:46,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:46,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950312044] [2020-10-16 12:04:46,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:46,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:47,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:47,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950312044] [2020-10-16 12:04:47,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:47,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:04:47,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570065121] [2020-10-16 12:04:47,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:04:47,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:47,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:04:47,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:04:47,030 INFO L87 Difference]: Start difference. First operand 119 states and 268 transitions. Second operand 7 states. [2020-10-16 12:04:47,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:47,182 INFO L93 Difference]: Finished difference Result 153 states and 339 transitions. [2020-10-16 12:04:47,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:04:47,182 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-10-16 12:04:47,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:47,185 INFO L225 Difference]: With dead ends: 153 [2020-10-16 12:04:47,185 INFO L226 Difference]: Without dead ends: 137 [2020-10-16 12:04:47,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:04:47,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-16 12:04:47,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2020-10-16 12:04:47,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-16 12:04:47,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 310 transitions. [2020-10-16 12:04:47,210 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 310 transitions. Word has length 11 [2020-10-16 12:04:47,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:47,210 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 310 transitions. [2020-10-16 12:04:47,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:04:47,210 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 310 transitions. [2020-10-16 12:04:47,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:04:47,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:47,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:47,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:04:47,214 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:47,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:47,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1099232730, now seen corresponding path program 2 times [2020-10-16 12:04:47,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:47,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517810564] [2020-10-16 12:04:47,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:47,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:47,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517810564] [2020-10-16 12:04:47,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:47,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:04:47,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76561591] [2020-10-16 12:04:47,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:04:47,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:47,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:04:47,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:04:47,335 INFO L87 Difference]: Start difference. First operand 137 states and 310 transitions. Second operand 6 states. [2020-10-16 12:04:47,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:47,441 INFO L93 Difference]: Finished difference Result 157 states and 343 transitions. [2020-10-16 12:04:47,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:04:47,441 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-10-16 12:04:47,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:47,443 INFO L225 Difference]: With dead ends: 157 [2020-10-16 12:04:47,444 INFO L226 Difference]: Without dead ends: 143 [2020-10-16 12:04:47,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:04:47,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-10-16 12:04:47,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 133. [2020-10-16 12:04:47,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-16 12:04:47,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 295 transitions. [2020-10-16 12:04:47,452 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 295 transitions. Word has length 11 [2020-10-16 12:04:47,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:47,452 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 295 transitions. [2020-10-16 12:04:47,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:04:47,452 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 295 transitions. [2020-10-16 12:04:47,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:04:47,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:47,454 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:47,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:04:47,454 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:47,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:47,455 INFO L82 PathProgramCache]: Analyzing trace with hash -657848166, now seen corresponding path program 1 times [2020-10-16 12:04:47,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:47,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411852761] [2020-10-16 12:04:47,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:47,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:47,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411852761] [2020-10-16 12:04:47,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:47,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:04:47,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269806125] [2020-10-16 12:04:47,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:04:47,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:47,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:04:47,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:04:47,522 INFO L87 Difference]: Start difference. First operand 133 states and 295 transitions. Second operand 4 states. [2020-10-16 12:04:47,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:47,545 INFO L93 Difference]: Finished difference Result 114 states and 213 transitions. [2020-10-16 12:04:47,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:04:47,546 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 12:04:47,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:47,547 INFO L225 Difference]: With dead ends: 114 [2020-10-16 12:04:47,547 INFO L226 Difference]: Without dead ends: 83 [2020-10-16 12:04:47,547 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:04:47,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-16 12:04:47,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-10-16 12:04:47,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-16 12:04:47,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 145 transitions. [2020-10-16 12:04:47,552 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 145 transitions. Word has length 11 [2020-10-16 12:04:47,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:47,552 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 145 transitions. [2020-10-16 12:04:47,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:04:47,552 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 145 transitions. [2020-10-16 12:04:47,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:04:47,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:47,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:47,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:04:47,554 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:47,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:47,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1314571888, now seen corresponding path program 1 times [2020-10-16 12:04:47,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:47,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410687055] [2020-10-16 12:04:47,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:47,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:47,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410687055] [2020-10-16 12:04:47,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:47,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:04:47,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616246697] [2020-10-16 12:04:47,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:04:47,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:47,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:04:47,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:04:47,633 INFO L87 Difference]: Start difference. First operand 83 states and 145 transitions. Second operand 5 states. [2020-10-16 12:04:47,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:47,672 INFO L93 Difference]: Finished difference Result 59 states and 95 transitions. [2020-10-16 12:04:47,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:04:47,673 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-16 12:04:47,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:47,674 INFO L225 Difference]: With dead ends: 59 [2020-10-16 12:04:47,674 INFO L226 Difference]: Without dead ends: 47 [2020-10-16 12:04:47,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:04:47,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-16 12:04:47,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2020-10-16 12:04:47,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-16 12:04:47,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 64 transitions. [2020-10-16 12:04:47,677 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 64 transitions. Word has length 12 [2020-10-16 12:04:47,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:47,677 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 64 transitions. [2020-10-16 12:04:47,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:04:47,678 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 64 transitions. [2020-10-16 12:04:47,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:04:47,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:47,679 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:47,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:04:47,679 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:47,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:47,679 INFO L82 PathProgramCache]: Analyzing trace with hash -299715963, now seen corresponding path program 1 times [2020-10-16 12:04:47,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:47,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101826577] [2020-10-16 12:04:47,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:47,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:47,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101826577] [2020-10-16 12:04:47,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:47,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:04:47,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171051125] [2020-10-16 12:04:47,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:04:47,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:47,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:04:47,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:04:47,806 INFO L87 Difference]: Start difference. First operand 41 states and 64 transitions. Second operand 7 states. [2020-10-16 12:04:47,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:47,913 INFO L93 Difference]: Finished difference Result 60 states and 91 transitions. [2020-10-16 12:04:47,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:04:47,913 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-16 12:04:47,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:47,914 INFO L225 Difference]: With dead ends: 60 [2020-10-16 12:04:47,914 INFO L226 Difference]: Without dead ends: 29 [2020-10-16 12:04:47,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:04:47,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-16 12:04:47,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-16 12:04:47,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-16 12:04:47,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2020-10-16 12:04:47,917 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 16 [2020-10-16 12:04:47,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:47,917 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2020-10-16 12:04:47,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:04:47,918 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2020-10-16 12:04:47,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:04:47,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:47,918 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:47,919 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:04:47,919 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:47,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:47,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1056418205, now seen corresponding path program 2 times [2020-10-16 12:04:47,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:47,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733741552] [2020-10-16 12:04:47,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:48,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:48,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733741552] [2020-10-16 12:04:48,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:48,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:04:48,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818673370] [2020-10-16 12:04:48,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:04:48,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:48,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:04:48,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:04:48,015 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 6 states. [2020-10-16 12:04:48,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:48,063 INFO L93 Difference]: Finished difference Result 44 states and 60 transitions. [2020-10-16 12:04:48,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:04:48,063 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-16 12:04:48,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:48,064 INFO L225 Difference]: With dead ends: 44 [2020-10-16 12:04:48,064 INFO L226 Difference]: Without dead ends: 25 [2020-10-16 12:04:48,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:04:48,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-16 12:04:48,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-10-16 12:04:48,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-16 12:04:48,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2020-10-16 12:04:48,066 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 16 [2020-10-16 12:04:48,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:48,067 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2020-10-16 12:04:48,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:04:48,067 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2020-10-16 12:04:48,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:04:48,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:48,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:48,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:04:48,069 INFO L429 AbstractCegarLoop]: === Iteration 10 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:48,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:48,069 INFO L82 PathProgramCache]: Analyzing trace with hash -869615873, now seen corresponding path program 3 times [2020-10-16 12:04:48,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:48,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672902270] [2020-10-16 12:04:48,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:04:48,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:04:48,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672902270] [2020-10-16 12:04:48,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:04:48,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:04:48,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234714523] [2020-10-16 12:04:48,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:04:48,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:04:48,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:04:48,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:04:48,288 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand 7 states. [2020-10-16 12:04:48,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:04:48,393 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2020-10-16 12:04:48,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:04:48,393 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-16 12:04:48,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:04:48,394 INFO L225 Difference]: With dead ends: 34 [2020-10-16 12:04:48,394 INFO L226 Difference]: Without dead ends: 21 [2020-10-16 12:04:48,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-16 12:04:48,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-16 12:04:48,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-16 12:04:48,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-16 12:04:48,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2020-10-16 12:04:48,396 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 16 [2020-10-16 12:04:48,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:04:48,396 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2020-10-16 12:04:48,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:04:48,396 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2020-10-16 12:04:48,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:04:48,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:04:48,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:04:48,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 12:04:48,397 INFO L429 AbstractCegarLoop]: === Iteration 11 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:04:48,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:04:48,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1239204549, now seen corresponding path program 4 times [2020-10-16 12:04:48,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:04:48,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929801352] [2020-10-16 12:04:48,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:04:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:04:48,431 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:04:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:04:48,463 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:04:48,494 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 12:04:48,494 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 12:04:48,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 12:04:48,510 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,510 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,512 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,512 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,512 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,512 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,513 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,513 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,513 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,513 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,514 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,514 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,514 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,515 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,515 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,515 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,515 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,516 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,516 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,516 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,516 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,517 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,517 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,517 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,518 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,518 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,518 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,519 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,519 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,519 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,519 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,520 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,520 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,520 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,521 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,521 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,521 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,521 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,521 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,522 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,522 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,522 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,522 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,523 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,523 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,523 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,523 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,524 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,524 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,524 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,524 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,524 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,525 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,525 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,525 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,525 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,526 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 12:04:48,526 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:04:48,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:04:48 BasicIcfg [2020-10-16 12:04:48,581 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:04:48,583 INFO L168 Benchmark]: Toolchain (without parser) took 9270.72 ms. Allocated memory was 140.0 MB in the beginning and 320.9 MB in the end (delta: 180.9 MB). Free memory was 101.9 MB in the beginning and 95.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 187.7 MB. Max. memory is 7.1 GB. [2020-10-16 12:04:48,584 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-16 12:04:48,585 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.50 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 158.4 MB in the end (delta: -56.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-10-16 12:04:48,585 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.26 ms. Allocated memory is still 202.9 MB. Free memory was 158.4 MB in the beginning and 155.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-10-16 12:04:48,586 INFO L168 Benchmark]: Boogie Preprocessor took 40.46 ms. Allocated memory is still 202.9 MB. Free memory was 155.0 MB in the beginning and 153.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:04:48,587 INFO L168 Benchmark]: RCFGBuilder took 1796.35 ms. Allocated memory was 202.9 MB in the beginning and 248.5 MB in the end (delta: 45.6 MB). Free memory was 153.0 MB in the beginning and 204.0 MB in the end (delta: -50.9 MB). Peak memory consumption was 105.8 MB. Max. memory is 7.1 GB. [2020-10-16 12:04:48,588 INFO L168 Benchmark]: TraceAbstraction took 6655.89 ms. Allocated memory was 248.5 MB in the beginning and 320.9 MB in the end (delta: 72.4 MB). Free memory was 202.2 MB in the beginning and 95.0 MB in the end (delta: 107.1 MB). Peak memory consumption was 179.5 MB. Max. memory is 7.1 GB. [2020-10-16 12:04:48,592 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 707.50 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 158.4 MB in the end (delta: -56.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 65.26 ms. Allocated memory is still 202.9 MB. Free memory was 158.4 MB in the beginning and 155.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.46 ms. Allocated memory is still 202.9 MB. Free memory was 155.0 MB in the beginning and 153.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1796.35 ms. Allocated memory was 202.9 MB in the beginning and 248.5 MB in the end (delta: 45.6 MB). Free memory was 153.0 MB in the beginning and 204.0 MB in the end (delta: -50.9 MB). Peak memory consumption was 105.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6655.89 ms. Allocated memory was 248.5 MB in the beginning and 320.9 MB in the end (delta: 72.4 MB). Free memory was 202.2 MB in the beginning and 95.0 MB in the end (delta: 107.1 MB). Peak memory consumption was 179.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 429 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 40 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.8s, 80 PlacesBefore, 28 PlacesAfterwards, 75 TransitionsBefore, 22 TransitionsAfterwards, 888 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 65 TotalNumberOfCompositions, 2462 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; [L700] 0 _Bool main$tmp_guard0; [L701] 0 _Bool main$tmp_guard1; [L703] 0 int x = 0; [L704] 0 _Bool x$flush_delayed; [L705] 0 int x$mem_tmp; [L706] 0 _Bool x$r_buff0_thd0; [L707] 0 _Bool x$r_buff0_thd1; [L708] 0 _Bool x$r_buff0_thd2; [L709] 0 _Bool x$r_buff1_thd0; [L710] 0 _Bool x$r_buff1_thd1; [L711] 0 _Bool x$r_buff1_thd2; [L712] 0 _Bool x$read_delayed; [L713] 0 int *x$read_delayed_var; [L714] 0 int x$w_buff0; [L715] 0 _Bool x$w_buff0_used; [L716] 0 int x$w_buff1; [L717] 0 _Bool x$w_buff1_used; [L719] 0 int y = 0; [L720] 0 _Bool weak$$choice0; [L721] 0 _Bool weak$$choice2; [L781] 0 pthread_t t1451; [L782] FCALL, FORK 0 pthread_create(&t1451, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, 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] [L783] 0 pthread_t t1452; [L784] FCALL, FORK 0 pthread_create(&t1452, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, 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] [L745] 2 x$w_buff1 = x$w_buff0 [L746] 2 x$w_buff0 = 2 [L747] 2 x$w_buff1_used = x$w_buff0_used [L748] 2 x$w_buff0_used = (_Bool)1 [L7] COND TRUE 2 !expression [L7] 2 __VERIFIER_error() [L750] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L751] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L752] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L753] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, 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] [L756] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, 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] [L725] 1 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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] [L728] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=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] [L759] 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) [L759] 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) [L760] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L760] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L761] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L761] 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 [L762] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L762] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L763] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L763] 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 [L766] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L768] 2 return 0; [L731] 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) [L731] EXPR 1 x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x [L731] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L731] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L732] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L732] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L733] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L733] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L734] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L734] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L735] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L735] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L738] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L740] 1 return 0; [L786] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, 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=0, x$w_buff1=0, x$w_buff1_used=0, y=1] [L3] COND FALSE 0 !(!cond) [L790] 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) [L790] 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) [L791] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L791] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L792] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L792] 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 [L793] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L793] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L794] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L794] 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 [L797] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L798] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L799] 0 x$flush_delayed = weak$$choice2 [L800] 0 x$mem_tmp = x [L801] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L801] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L802] EXPR 0 weak$$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$w_buff0)) [L802] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L803] EXPR 0 weak$$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$w_buff1)) [L803] EXPR 0 !x$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) [L803] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L803] 0 x$w_buff1 = weak$$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)) [L804] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L804] 0 x$w_buff0_used = weak$$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)) [L805] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L805] 0 x$w_buff1_used = weak$$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)) [L806] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L806] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0) [L806] EXPR 0 weak$$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)) [L806] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L807] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L807] EXPR 0 !x$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L807] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0 [L807] EXPR 0 !x$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) [L807] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L807] 0 x$r_buff1_thd0 = weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L808] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0) [L809] EXPR 0 x$flush_delayed ? x$mem_tmp : x [L809] 0 x = x$flush_delayed ? x$mem_tmp : x [L810] 0 x$flush_delayed = (_Bool)0 [L7] COND TRUE 0 !expression [L7] 0 __VERIFIER_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$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] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 74 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.4s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 164 SDtfs, 206 SDslu, 318 SDs, 0 SdLazy, 258 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 9361 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...