/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/mix031_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:01:25,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:01:25,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:01:25,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:01:25,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:01:25,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:01:25,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:01:25,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:01:25,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:01:25,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:01:25,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:01:25,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:01:25,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:01:25,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:01:25,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:01:25,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:01:25,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:01:25,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:01:25,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:01:25,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:01:25,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:01:25,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:01:25,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:01:25,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:01:25,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:01:25,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:01:25,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:01:25,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:01:25,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:01:25,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:01:25,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:01:25,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:01:25,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:01:25,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:01:25,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:01:25,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:01:25,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:01:25,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:01:25,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:01:25,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:01:25,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:01:25,162 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 12:01:25,185 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:01:25,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:01:25,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:01:25,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:01:25,186 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:01:25,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:01:25,187 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:01:25,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:01:25,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:01:25,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:01:25,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:01:25,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:01:25,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:01:25,188 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:01:25,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:01:25,188 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:01:25,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:01:25,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:01:25,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:01:25,189 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:01:25,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:01:25,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:01:25,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:01:25,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:01:25,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:01:25,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:01:25,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:01:25,191 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:01:25,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:01:25,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:01:25,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:01:25,516 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:01:25,517 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:01:25,517 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:01:25,518 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix031_power.opt.i [2020-10-16 12:01:25,586 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b8eb3d56/d26655c39eab4eaeac9faf4e9c7a9927/FLAGd3f0a0975 [2020-10-16 12:01:26,108 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:01:26,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/mix031_power.opt.i [2020-10-16 12:01:26,124 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b8eb3d56/d26655c39eab4eaeac9faf4e9c7a9927/FLAGd3f0a0975 [2020-10-16 12:01:26,409 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b8eb3d56/d26655c39eab4eaeac9faf4e9c7a9927 [2020-10-16 12:01:26,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:01:26,423 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:01:26,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:01:26,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:01:26,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:01:26,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:01:26" (1/1) ... [2020-10-16 12:01:26,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@634d4812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:01:26, skipping insertion in model container [2020-10-16 12:01:26,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:01:26" (1/1) ... [2020-10-16 12:01:26,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:01:26,507 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:01:27,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:01:27,043 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:01:27,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:01:27,170 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:01:27,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:01:27 WrapperNode [2020-10-16 12:01:27,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:01:27,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:01:27,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:01:27,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:01:27,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:01:27" (1/1) ... [2020-10-16 12:01:27,200 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:01:27" (1/1) ... [2020-10-16 12:01:27,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:01:27,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:01:27,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:01:27,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:01:27,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:01:27" (1/1) ... [2020-10-16 12:01:27,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:01:27" (1/1) ... [2020-10-16 12:01:27,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:01:27" (1/1) ... [2020-10-16 12:01:27,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:01:27" (1/1) ... [2020-10-16 12:01:27,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:01:27" (1/1) ... [2020-10-16 12:01:27,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:01:27" (1/1) ... [2020-10-16 12:01:27,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:01:27" (1/1) ... [2020-10-16 12:01:27,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:01:27,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:01:27,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:01:27,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:01:27,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:01:27" (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 12:01:27,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:01:27,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 12:01:27,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:01:27,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:01:27,347 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 12:01:27,347 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 12:01:27,348 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 12:01:27,348 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 12:01:27,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 12:01:27,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:01:27,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:01:27,350 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 12:01:28,920 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:01:28,921 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-16 12:01:28,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:01:28 BoogieIcfgContainer [2020-10-16 12:01:28,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:01:28,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:01:28,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:01:28,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:01:28,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:01:26" (1/3) ... [2020-10-16 12:01:28,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2950af53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:01:28, skipping insertion in model container [2020-10-16 12:01:28,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:01:27" (2/3) ... [2020-10-16 12:01:28,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2950af53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:01:28, skipping insertion in model container [2020-10-16 12:01:28,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:01:28" (3/3) ... [2020-10-16 12:01:28,933 INFO L111 eAbstractionObserver]: Analyzing ICFG mix031_power.opt.i [2020-10-16 12:01:28,945 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:01:28,945 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:01:28,952 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 12:01:28,953 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:01:28,983 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,984 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,984 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,984 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,985 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,985 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,985 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,986 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,986 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,986 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,986 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,986 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,987 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,987 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,987 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,987 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,987 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,988 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,988 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,988 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,988 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,988 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,989 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,989 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,989 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,989 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,990 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,990 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,990 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,990 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,990 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,991 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,991 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,991 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,991 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,991 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,992 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,992 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,992 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,992 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,992 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,993 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,995 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,995 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,996 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,997 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,997 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,997 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,997 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,998 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,998 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,998 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,998 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:28,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,024 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,025 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,028 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,029 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,029 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,029 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,029 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,030 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,030 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,030 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,030 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,030 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,030 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,031 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,037 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,037 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,038 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,038 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,038 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,038 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,038 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,039 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,039 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,039 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,039 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,039 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,041 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:01:29,044 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:01:29,057 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 12:01:29,076 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:01:29,077 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:01:29,077 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:01:29,077 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:01:29,077 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:01:29,077 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:01:29,077 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:01:29,078 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:01:29,090 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:01:29,091 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 83 transitions, 176 flow [2020-10-16 12:01:29,094 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 83 transitions, 176 flow [2020-10-16 12:01:29,095 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 88 places, 83 transitions, 176 flow [2020-10-16 12:01:29,137 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2020-10-16 12:01:29,137 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:01:29,142 INFO L80 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2020-10-16 12:01:29,145 INFO L117 LiptonReduction]: Number of co-enabled transitions 1088 [2020-10-16 12:01:29,526 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-16 12:01:31,424 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-16 12:01:31,531 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-16 12:01:31,536 INFO L132 LiptonReduction]: Checked pairs total: 2523 [2020-10-16 12:01:31,536 INFO L134 LiptonReduction]: Total number of compositions: 74 [2020-10-16 12:01:31,541 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 20 transitions, 50 flow [2020-10-16 12:01:31,558 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 187 states. [2020-10-16 12:01:31,560 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states. [2020-10-16 12:01:31,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-16 12:01:31,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:01:31,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 12:01:31,567 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:01:31,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:01:31,571 INFO L82 PathProgramCache]: Analyzing trace with hash 800342419, now seen corresponding path program 1 times [2020-10-16 12:01:31,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:01:31,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864905869] [2020-10-16 12:01:31,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:01:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:01:31,774 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 12:01:31,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864905869] [2020-10-16 12:01:31,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:01:31,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:01:31,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450198787] [2020-10-16 12:01:31,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:01:31,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:01:31,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:01:31,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:01:31,797 INFO L87 Difference]: Start difference. First operand 187 states. Second operand 3 states. [2020-10-16 12:01:31,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:01:31,854 INFO L93 Difference]: Finished difference Result 162 states and 385 transitions. [2020-10-16 12:01:31,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:01:31,857 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-16 12:01:31,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:01:31,869 INFO L225 Difference]: With dead ends: 162 [2020-10-16 12:01:31,869 INFO L226 Difference]: Without dead ends: 132 [2020-10-16 12:01:31,871 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 12:01:31,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-16 12:01:31,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-10-16 12:01:31,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-16 12:01:31,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 306 transitions. [2020-10-16 12:01:31,922 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 306 transitions. Word has length 5 [2020-10-16 12:01:31,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:01:31,923 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 306 transitions. [2020-10-16 12:01:31,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:01:31,923 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 306 transitions. [2020-10-16 12:01:31,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-16 12:01:31,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:01:31,924 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:01:31,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:01:31,925 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:01:31,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:01:31,925 INFO L82 PathProgramCache]: Analyzing trace with hash 329974038, now seen corresponding path program 1 times [2020-10-16 12:01:31,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:01:31,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740636305] [2020-10-16 12:01:31,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:01:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:01:32,029 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 12:01:32,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740636305] [2020-10-16 12:01:32,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:01:32,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:01:32,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675772492] [2020-10-16 12:01:32,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:01:32,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:01:32,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:01:32,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:01:32,033 INFO L87 Difference]: Start difference. First operand 132 states and 306 transitions. Second operand 3 states. [2020-10-16 12:01:32,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:01:32,059 INFO L93 Difference]: Finished difference Result 120 states and 272 transitions. [2020-10-16 12:01:32,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:01:32,059 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-16 12:01:32,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:01:32,061 INFO L225 Difference]: With dead ends: 120 [2020-10-16 12:01:32,061 INFO L226 Difference]: Without dead ends: 120 [2020-10-16 12:01:32,062 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 12:01:32,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-16 12:01:32,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-10-16 12:01:32,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-16 12:01:32,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 272 transitions. [2020-10-16 12:01:32,084 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 272 transitions. Word has length 7 [2020-10-16 12:01:32,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:01:32,085 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 272 transitions. [2020-10-16 12:01:32,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:01:32,085 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 272 transitions. [2020-10-16 12:01:32,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:01:32,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:01:32,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:01:32,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:01:32,087 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:01:32,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:01:32,087 INFO L82 PathProgramCache]: Analyzing trace with hash 161230825, now seen corresponding path program 1 times [2020-10-16 12:01:32,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:01:32,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104478917] [2020-10-16 12:01:32,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:01:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:01:32,193 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 12:01:32,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104478917] [2020-10-16 12:01:32,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:01:32,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:01:32,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871777644] [2020-10-16 12:01:32,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:01:32,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:01:32,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:01:32,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:01:32,196 INFO L87 Difference]: Start difference. First operand 120 states and 272 transitions. Second operand 3 states. [2020-10-16 12:01:32,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:01:32,214 INFO L93 Difference]: Finished difference Result 114 states and 256 transitions. [2020-10-16 12:01:32,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:01:32,221 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 12:01:32,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:01:32,222 INFO L225 Difference]: With dead ends: 114 [2020-10-16 12:01:32,222 INFO L226 Difference]: Without dead ends: 114 [2020-10-16 12:01:32,223 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 12:01:32,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-16 12:01:32,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-10-16 12:01:32,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-16 12:01:32,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 256 transitions. [2020-10-16 12:01:32,240 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 256 transitions. Word has length 9 [2020-10-16 12:01:32,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:01:32,240 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 256 transitions. [2020-10-16 12:01:32,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:01:32,241 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 256 transitions. [2020-10-16 12:01:32,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:01:32,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:01:32,244 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:01:32,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:01:32,244 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:01:32,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:01:32,245 INFO L82 PathProgramCache]: Analyzing trace with hash 322716859, now seen corresponding path program 1 times [2020-10-16 12:01:32,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:01:32,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418109113] [2020-10-16 12:01:32,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:01:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:01:32,324 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 12:01:32,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418109113] [2020-10-16 12:01:32,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:01:32,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:01:32,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764818857] [2020-10-16 12:01:32,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:01:32,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:01:32,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:01:32,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:01:32,327 INFO L87 Difference]: Start difference. First operand 114 states and 256 transitions. Second operand 4 states. [2020-10-16 12:01:32,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:01:32,359 INFO L93 Difference]: Finished difference Result 98 states and 187 transitions. [2020-10-16 12:01:32,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:01:32,360 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 12:01:32,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:01:32,361 INFO L225 Difference]: With dead ends: 98 [2020-10-16 12:01:32,361 INFO L226 Difference]: Without dead ends: 68 [2020-10-16 12:01:32,361 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 12:01:32,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-16 12:01:32,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-16 12:01:32,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-16 12:01:32,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 118 transitions. [2020-10-16 12:01:32,367 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 118 transitions. Word has length 11 [2020-10-16 12:01:32,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:01:32,367 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 118 transitions. [2020-10-16 12:01:32,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:01:32,367 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 118 transitions. [2020-10-16 12:01:32,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:01:32,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:01:32,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:01:32,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:01:32,369 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:01:32,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:01:32,369 INFO L82 PathProgramCache]: Analyzing trace with hash 675367802, now seen corresponding path program 1 times [2020-10-16 12:01:32,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:01:32,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46302665] [2020-10-16 12:01:32,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:01:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:01:32,541 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 12:01:32,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46302665] [2020-10-16 12:01:32,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:01:32,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:01:32,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350639314] [2020-10-16 12:01:32,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:01:32,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:01:32,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:01:32,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:01:32,543 INFO L87 Difference]: Start difference. First operand 68 states and 118 transitions. Second operand 5 states. [2020-10-16 12:01:32,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:01:32,577 INFO L93 Difference]: Finished difference Result 55 states and 90 transitions. [2020-10-16 12:01:32,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:01:32,578 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 12:01:32,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:01:32,578 INFO L225 Difference]: With dead ends: 55 [2020-10-16 12:01:32,579 INFO L226 Difference]: Without dead ends: 45 [2020-10-16 12:01:32,579 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:01:32,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-16 12:01:32,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-16 12:01:32,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-16 12:01:32,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 72 transitions. [2020-10-16 12:01:32,583 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 72 transitions. Word has length 13 [2020-10-16 12:01:32,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:01:32,583 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 72 transitions. [2020-10-16 12:01:32,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:01:32,583 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 72 transitions. [2020-10-16 12:01:32,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:01:32,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:01:32,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:01:32,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:01:32,585 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:01:32,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:01:32,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1506147979, now seen corresponding path program 1 times [2020-10-16 12:01:32,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:01:32,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805986418] [2020-10-16 12:01:32,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:01:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:01:32,652 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 12:01:32,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805986418] [2020-10-16 12:01:32,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:01:32,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:01:32,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543584042] [2020-10-16 12:01:32,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:01:32,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:01:32,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:01:32,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:01:32,655 INFO L87 Difference]: Start difference. First operand 45 states and 72 transitions. Second operand 4 states. [2020-10-16 12:01:32,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:01:32,669 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-10-16 12:01:32,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:01:32,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-16 12:01:32,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:01:32,670 INFO L225 Difference]: With dead ends: 59 [2020-10-16 12:01:32,670 INFO L226 Difference]: Without dead ends: 25 [2020-10-16 12:01:32,670 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 12:01:32,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-16 12:01:32,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-10-16 12:01:32,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-16 12:01:32,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2020-10-16 12:01:32,673 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 16 [2020-10-16 12:01:32,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:01:32,673 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2020-10-16 12:01:32,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:01:32,674 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2020-10-16 12:01:32,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:01:32,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:01:32,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:01:32,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:01:32,675 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:01:32,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:01:32,675 INFO L82 PathProgramCache]: Analyzing trace with hash -656292085, now seen corresponding path program 2 times [2020-10-16 12:01:32,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:01:32,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696345187] [2020-10-16 12:01:32,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:01:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:01:32,861 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 12:01:32,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696345187] [2020-10-16 12:01:32,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:01:32,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:01:32,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54187470] [2020-10-16 12:01:32,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:01:32,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:01:32,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:01:32,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:01:32,864 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand 5 states. [2020-10-16 12:01:32,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:01:32,940 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2020-10-16 12:01:32,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:01:32,940 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-16 12:01:32,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:01:32,941 INFO L225 Difference]: With dead ends: 31 [2020-10-16 12:01:32,943 INFO L226 Difference]: Without dead ends: 19 [2020-10-16 12:01:32,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:01:32,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-16 12:01:32,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-16 12:01:32,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-16 12:01:32,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-10-16 12:01:32,949 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 16 [2020-10-16 12:01:32,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:01:32,949 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-10-16 12:01:32,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:01:32,949 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-10-16 12:01:32,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:01:32,950 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:01:32,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:01:32,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:01:32,950 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:01:32,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:01:32,951 INFO L82 PathProgramCache]: Analyzing trace with hash 240479027, now seen corresponding path program 3 times [2020-10-16 12:01:32,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:01:32,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240676222] [2020-10-16 12:01:32,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:01:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:01:33,036 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:01:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:01:33,083 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:01:33,113 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 12:01:33,114 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 12:01:33,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:01:33,115 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 12:01:33,127 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [799] [799] L819-->L826: Formula: (let ((.cse6 (= (mod ~y$r_buff1_thd0~0_In870687762 256) 0)) (.cse7 (= (mod ~y$w_buff1_used~0_In870687762 256) 0)) (.cse9 (= (mod ~y$w_buff0_used~0_In870687762 256) 0)) (.cse8 (= (mod ~y$r_buff0_thd0~0_In870687762 256) 0))) (let ((.cse0 (not .cse8)) (.cse1 (not .cse9)) (.cse2 (or .cse8 .cse9)) (.cse3 (or .cse6 .cse7)) (.cse4 (not .cse7)) (.cse5 (not .cse6))) (and (= ~y$r_buff1_thd0~0_In870687762 ~y$r_buff1_thd0~0_Out870687762) (or (and .cse0 (= ~y~0_Out870687762 ~y$w_buff0~0_In870687762) .cse1) (and .cse2 (or (and (= ~y~0_Out870687762 ~y~0_In870687762) .cse3) (and .cse4 (= ~y~0_Out870687762 ~y$w_buff1~0_In870687762) .cse5)))) (not (= 0 ULTIMATE.start_assume_abort_if_not_~cond_Out870687762)) (= ~y$r_buff0_thd0~0_In870687762 ~y$r_buff0_thd0~0_Out870687762) (or (and (= ~y$w_buff0_used~0_Out870687762 0) .cse0 .cse1) (and .cse2 (= ~y$w_buff0_used~0_Out870687762 ~y$w_buff0_used~0_In870687762))) (or (and .cse3 (= ~y$w_buff1_used~0_Out870687762 ~y$w_buff1_used~0_In870687762)) (and .cse4 (= ~y$w_buff1_used~0_Out870687762 0) .cse5)) (= |ULTIMATE.start_assume_abort_if_not_#in~cond_In870687762| ULTIMATE.start_assume_abort_if_not_~cond_Out870687762)))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_In870687762|, ~y$w_buff0_used~0=~y$w_buff0_used~0_In870687762, ~y$w_buff1~0=~y$w_buff1~0_In870687762, ~y$r_buff0_thd0~0=~y$r_buff0_thd0~0_In870687762, ~y$w_buff0~0=~y$w_buff0~0_In870687762, ~y~0=~y~0_In870687762, ~y$r_buff1_thd0~0=~y$r_buff1_thd0~0_In870687762, ~y$w_buff1_used~0=~y$w_buff1_used~0_In870687762} OutVars{~y$w_buff0_used~0=~y$w_buff0_used~0_Out870687762, ULTIMATE.start_main_#t~ite35=|ULTIMATE.start_main_#t~ite35_Out870687762|, ULTIMATE.start_main_#t~ite36=|ULTIMATE.start_main_#t~ite36_Out870687762|, ULTIMATE.start_main_#t~ite38=|ULTIMATE.start_main_#t~ite38_Out870687762|, ULTIMATE.start_main_#t~ite37=|ULTIMATE.start_main_#t~ite37_Out870687762|, ULTIMATE.start_main_#t~ite33=|ULTIMATE.start_main_#t~ite33_Out870687762|, ULTIMATE.start_main_#t~ite34=|ULTIMATE.start_main_#t~ite34_Out870687762|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_In870687762|, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out870687762, ~y$w_buff1~0=~y$w_buff1~0_In870687762, ~y$r_buff0_thd0~0=~y$r_buff0_thd0~0_Out870687762, ~y$w_buff0~0=~y$w_buff0~0_In870687762, ~y~0=~y~0_Out870687762, ~y$r_buff1_thd0~0=~y$r_buff1_thd0~0_Out870687762, ~y$w_buff1_used~0=~y$w_buff1_used~0_Out870687762} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond, ~y$w_buff0_used~0, ~y$r_buff0_thd0~0, ULTIMATE.start_main_#t~ite35, ULTIMATE.start_main_#t~ite36, ULTIMATE.start_main_#t~ite38, ULTIMATE.start_main_#t~ite37, ~y~0, ~y$r_buff1_thd0~0, ULTIMATE.start_main_#t~ite33, ULTIMATE.start_main_#t~ite34, ~y$w_buff1_used~0] because there is no mapped edge [2020-10-16 12:01:33,136 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 12:01:33,136 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:33,139 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 12:01:33,139 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:33,139 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 12:01:33,139 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:33,139 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 12:01:33,140 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:33,140 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 12:01:33,140 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:33,140 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 12:01:33,140 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:33,141 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 12:01:33,141 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:33,141 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 12:01:33,141 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:33,141 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 12:01:33,142 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:33,142 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 12:01:33,142 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:33,142 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 12:01:33,142 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:33,142 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 12:01:33,143 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:33,143 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 12:01:33,143 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:33,143 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 12:01:33,143 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:33,144 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 12:01:33,144 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:33,144 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 12:01:33,144 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:33,144 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 12:01:33,145 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:33,145 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 12:01:33,145 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:33,145 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 12:01:33,145 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:33,145 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 12:01:33,146 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 12:01:33,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:01:33 BasicIcfg [2020-10-16 12:01:33,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:01:33,214 INFO L168 Benchmark]: Toolchain (without parser) took 6791.15 ms. Allocated memory was 139.5 MB in the beginning and 295.2 MB in the end (delta: 155.7 MB). Free memory was 101.0 MB in the beginning and 171.8 MB in the end (delta: -70.7 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:01:33,215 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:01:33,218 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.79 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 100.8 MB in the beginning and 156.7 MB in the end (delta: -55.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-10-16 12:01:33,218 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.90 ms. Allocated memory is still 201.9 MB. Free memory was 156.7 MB in the beginning and 154.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-16 12:01:33,219 INFO L168 Benchmark]: Boogie Preprocessor took 42.51 ms. Allocated memory is still 201.9 MB. Free memory was 154.0 MB in the beginning and 152.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:01:33,221 INFO L168 Benchmark]: RCFGBuilder took 1649.64 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 152.1 MB in the beginning and 91.4 MB in the end (delta: 60.7 MB). Peak memory consumption was 93.7 MB. Max. memory is 7.1 GB. [2020-10-16 12:01:33,222 INFO L168 Benchmark]: TraceAbstraction took 4285.60 ms. Allocated memory was 234.9 MB in the beginning and 295.2 MB in the end (delta: 60.3 MB). Free memory was 91.4 MB in the beginning and 171.8 MB in the end (delta: -80.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:01:33,236 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 746.79 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 100.8 MB in the beginning and 156.7 MB in the end (delta: -55.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.90 ms. Allocated memory is still 201.9 MB. Free memory was 156.7 MB in the beginning and 154.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.51 ms. Allocated memory is still 201.9 MB. Free memory was 154.0 MB in the beginning and 152.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1649.64 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 152.1 MB in the beginning and 91.4 MB in the end (delta: 60.7 MB). Peak memory consumption was 93.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4285.60 ms. Allocated memory was 234.9 MB in the beginning and 295.2 MB in the end (delta: 60.3 MB). Free memory was 91.4 MB in the beginning and 171.8 MB in the end (delta: -80.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 555 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 45 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.4s, 88 PlacesBefore, 27 PlacesAfterwards, 83 TransitionsBefore, 20 TransitionsAfterwards, 1088 CoEnabledTransitionPairs, 6 FixpointIterations, 33 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 2523 MoverChecksTotal - CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L698] 0 int __unbuffered_cnt = 0; [L700] 0 int __unbuffered_p0_EAX = 0; [L702] 0 int __unbuffered_p0_EBX = 0; [L704] 0 int __unbuffered_p1_EAX = 0; [L706] 0 int __unbuffered_p1_EBX = 0; [L708] 0 int a = 0; [L709] 0 _Bool main$tmp_guard0; [L710] 0 _Bool main$tmp_guard1; [L712] 0 int x = 0; [L714] 0 int y = 0; [L715] 0 _Bool y$flush_delayed; [L716] 0 int y$mem_tmp; [L717] 0 _Bool y$r_buff0_thd0; [L718] 0 _Bool y$r_buff0_thd1; [L719] 0 _Bool y$r_buff0_thd2; [L720] 0 _Bool y$r_buff1_thd0; [L721] 0 _Bool y$r_buff1_thd1; [L722] 0 _Bool y$r_buff1_thd2; [L723] 0 _Bool y$read_delayed; [L724] 0 int *y$read_delayed_var; [L725] 0 int y$w_buff0; [L726] 0 _Bool y$w_buff0_used; [L727] 0 int y$w_buff1; [L728] 0 _Bool y$w_buff1_used; [L730] 0 int z = 0; [L731] 0 _Bool weak$$choice0; [L732] 0 _Bool weak$$choice2; [L812] 0 pthread_t t835; [L813] FCALL, FORK 0 pthread_create(&t835, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L814] 0 pthread_t t836; [L815] FCALL, FORK 0 pthread_create(&t836, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L770] 2 y$w_buff1 = y$w_buff0 [L771] 2 y$w_buff0 = 1 [L772] 2 y$w_buff1_used = y$w_buff0_used [L773] 2 y$w_buff0_used = (_Bool)1 [L8] COND TRUE 2 !expression [L8] 2 __VERIFIER_error() [L775] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L776] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L777] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L778] 2 y$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L781] 2 z = 1 [L784] 2 __unbuffered_p1_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L787] 2 __unbuffered_p1_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L736] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L739] 1 x = 1 [L742] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L745] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L746] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L747] 1 y$flush_delayed = weak$$choice2 [L748] 1 y$mem_tmp = y [L749] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L749] 1 y = !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L750] EXPR 1 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L750] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0) [L750] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0 [L750] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0) [L750] EXPR 1 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L750] 1 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L751] EXPR 1 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L751] 1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L752] EXPR 1 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L752] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used) [L752] EXPR 1 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L752] 1 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L753] EXPR 1 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L753] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L753] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0 [L753] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L753] EXPR 1 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L753] 1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L754] EXPR 1 weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L754] 1 y$r_buff0_thd1 = weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L755] EXPR 1 weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L755] 1 y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L756] 1 __unbuffered_p0_EBX = y [L757] EXPR 1 y$flush_delayed ? y$mem_tmp : y [L757] 1 y = y$flush_delayed ? y$mem_tmp : y [L758] 1 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L790] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L790] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L790] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L790] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L791] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L791] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L792] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L792] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L793] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L793] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L794] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L794] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L797] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L799] 2 return 0; [L763] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L765] 1 return 0; [L817] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L828] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p0_EBX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L8] COND TRUE 0 !expression [L8] 0 __VERIFIER_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 82 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.0s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 128 SDtfs, 76 SDslu, 153 SDs, 0 SdLazy, 68 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=187occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 4795 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...