/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/rfi003_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 23:02:39,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 23:02:39,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 23:02:39,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 23:02:39,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 23:02:39,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 23:02:39,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 23:02:39,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 23:02:39,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 23:02:39,745 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 23:02:39,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 23:02:39,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 23:02:39,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 23:02:39,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 23:02:39,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 23:02:39,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 23:02:39,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 23:02:39,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 23:02:39,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 23:02:39,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 23:02:39,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 23:02:39,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 23:02:39,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 23:02:39,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 23:02:39,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 23:02:39,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 23:02:39,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 23:02:39,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 23:02:39,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 23:02:39,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 23:02:39,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 23:02:39,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 23:02:39,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 23:02:39,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 23:02:39,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 23:02:39,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 23:02:39,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 23:02:39,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 23:02:39,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 23:02:39,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 23:02:39,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 23:02:39,771 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-21 23:02:39,793 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 23:02:39,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 23:02:39,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 23:02:39,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 23:02:39,795 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 23:02:39,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 23:02:39,795 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 23:02:39,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 23:02:39,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 23:02:39,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 23:02:39,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 23:02:39,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 23:02:39,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 23:02:39,796 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 23:02:39,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 23:02:39,797 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 23:02:39,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 23:02:39,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 23:02:39,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 23:02:39,797 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 23:02:39,798 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 23:02:39,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:02:39,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 23:02:39,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 23:02:39,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 23:02:39,799 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 23:02:39,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 23:02:39,799 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 23:02:39,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 23:02:40,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 23:02:40,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 23:02:40,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 23:02:40,135 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 23:02:40,136 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 23:02:40,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi003_pso.oepc.i [2020-10-21 23:02:40,204 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/521bc040d/39c388bd6edf43ed9aef58ae4c1f697e/FLAG8a849160e [2020-10-21 23:02:40,715 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 23:02:40,715 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi003_pso.oepc.i [2020-10-21 23:02:40,737 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/521bc040d/39c388bd6edf43ed9aef58ae4c1f697e/FLAG8a849160e [2020-10-21 23:02:41,030 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/521bc040d/39c388bd6edf43ed9aef58ae4c1f697e [2020-10-21 23:02:41,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 23:02:41,046 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 23:02:41,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 23:02:41,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 23:02:41,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 23:02:41,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:02:41" (1/1) ... [2020-10-21 23:02:41,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11d64f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:02:41, skipping insertion in model container [2020-10-21 23:02:41,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:02:41" (1/1) ... [2020-10-21 23:02:41,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 23:02:41,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 23:02:41,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:02:41,687 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 23:02:41,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:02:41,892 INFO L208 MainTranslator]: Completed translation [2020-10-21 23:02:41,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:02:41 WrapperNode [2020-10-21 23:02:41,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 23:02:41,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 23:02:41,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 23:02:41,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 23:02:41,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:02:41" (1/1) ... [2020-10-21 23:02:41,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:02:41" (1/1) ... [2020-10-21 23:02:41,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 23:02:41,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 23:02:41,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 23:02:41,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 23:02:41,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:02:41" (1/1) ... [2020-10-21 23:02:41,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:02:41" (1/1) ... [2020-10-21 23:02:41,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:02:41" (1/1) ... [2020-10-21 23:02:41,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:02:41" (1/1) ... [2020-10-21 23:02:41,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:02:41" (1/1) ... [2020-10-21 23:02:41,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:02:41" (1/1) ... [2020-10-21 23:02:41,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:02:41" (1/1) ... [2020-10-21 23:02:41,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 23:02:41,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 23:02:41,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 23:02:41,994 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 23:02:41,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:02:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:02:42,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 23:02:42,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 23:02:42,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 23:02:42,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 23:02:42,058 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 23:02:42,058 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 23:02:42,058 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 23:02:42,058 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 23:02:42,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 23:02:42,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 23:02:42,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 23:02:42,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 23:02:42,061 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 23:02:43,718 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 23:02:43,719 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-21 23:02:43,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:02:43 BoogieIcfgContainer [2020-10-21 23:02:43,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 23:02:43,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 23:02:43,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 23:02:43,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 23:02:43,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 11:02:41" (1/3) ... [2020-10-21 23:02:43,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a69a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:02:43, skipping insertion in model container [2020-10-21 23:02:43,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:02:41" (2/3) ... [2020-10-21 23:02:43,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a69a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:02:43, skipping insertion in model container [2020-10-21 23:02:43,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:02:43" (3/3) ... [2020-10-21 23:02:43,760 INFO L111 eAbstractionObserver]: Analyzing ICFG rfi003_pso.oepc.i [2020-10-21 23:02:43,773 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 23:02:43,773 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 23:02:43,781 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-21 23:02:43,782 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 23:02:43,810 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,810 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,811 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,811 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,811 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,812 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,812 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,812 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,812 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,812 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,813 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,813 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,813 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,813 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,813 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,813 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,815 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,815 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,815 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,815 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,815 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,817 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,817 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,817 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,817 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,817 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,817 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,818 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,818 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,820 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,820 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,823 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,825 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,825 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,829 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,829 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,829 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,829 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,830 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,830 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,830 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,830 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,830 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,831 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,831 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,831 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,831 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,831 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,831 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,833 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,833 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,833 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,833 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,833 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,834 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,834 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,837 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,838 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,838 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,838 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,838 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,838 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,839 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,839 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,839 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,839 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,839 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,840 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,840 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,840 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:02:43,841 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 23:02:43,854 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-21 23:02:43,874 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:02:43,875 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:02:43,875 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:02:43,875 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 23:02:43,875 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:02:43,875 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:02:43,875 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:02:43,876 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:02:43,888 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:02:43,889 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 87 transitions, 184 flow [2020-10-21 23:02:43,892 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 87 transitions, 184 flow [2020-10-21 23:02:43,894 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 87 transitions, 184 flow [2020-10-21 23:02:43,935 INFO L129 PetriNetUnfolder]: 3/85 cut-off events. [2020-10-21 23:02:43,936 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 23:02:43,940 INFO L80 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 85 events. 3/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2020-10-21 23:02:43,943 INFO L116 LiptonReduction]: Number of co-enabled transitions 1096 [2020-10-21 23:02:44,741 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-21 23:02:45,385 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-21 23:02:46,534 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2020-10-21 23:02:46,698 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-21 23:02:46,872 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-21 23:02:47,045 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-21 23:02:47,051 INFO L131 LiptonReduction]: Checked pairs total: 3233 [2020-10-21 23:02:47,051 INFO L133 LiptonReduction]: Total number of compositions: 84 [2020-10-21 23:02:47,058 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 21 transitions, 52 flow [2020-10-21 23:02:47,084 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 170 states. [2020-10-21 23:02:47,087 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2020-10-21 23:02:47,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-21 23:02:47,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:02:47,114 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-21 23:02:47,115 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:02:47,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:02:47,126 INFO L82 PathProgramCache]: Analyzing trace with hash 834331973, now seen corresponding path program 1 times [2020-10-21 23:02:47,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:02:47,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194301274] [2020-10-21 23:02:47,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:02:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:02:47,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:02:47,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194301274] [2020-10-21 23:02:47,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:02:47,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:02:47,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386975591] [2020-10-21 23:02:47,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:02:47,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:02:47,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:02:47,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:02:47,376 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 3 states. [2020-10-21 23:02:47,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:02:47,446 INFO L93 Difference]: Finished difference Result 150 states and 353 transitions. [2020-10-21 23:02:47,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:02:47,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-21 23:02:47,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:02:47,460 INFO L225 Difference]: With dead ends: 150 [2020-10-21 23:02:47,460 INFO L226 Difference]: Without dead ends: 122 [2020-10-21 23:02:47,462 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 [2020-10-21 23:02:47,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-10-21 23:02:47,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2020-10-21 23:02:47,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-21 23:02:47,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 280 transitions. [2020-10-21 23:02:47,508 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 280 transitions. Word has length 5 [2020-10-21 23:02:47,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:02:47,509 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 280 transitions. [2020-10-21 23:02:47,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:02:47,509 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 280 transitions. [2020-10-21 23:02:47,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-21 23:02:47,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:02:47,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:02:47,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 23:02:47,513 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:02:47,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:02:47,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1365847421, now seen corresponding path program 1 times [2020-10-21 23:02:47,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:02:47,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953393544] [2020-10-21 23:02:47,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:02:47,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:02:47,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:02:47,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953393544] [2020-10-21 23:02:47,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:02:47,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:02:47,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583468103] [2020-10-21 23:02:47,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:02:47,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:02:47,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:02:47,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:02:47,579 INFO L87 Difference]: Start difference. First operand 122 states and 280 transitions. Second operand 3 states. [2020-10-21 23:02:47,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:02:47,600 INFO L93 Difference]: Finished difference Result 120 states and 274 transitions. [2020-10-21 23:02:47,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:02:47,603 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-21 23:02:47,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:02:47,605 INFO L225 Difference]: With dead ends: 120 [2020-10-21 23:02:47,606 INFO L226 Difference]: Without dead ends: 120 [2020-10-21 23:02:47,606 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 [2020-10-21 23:02:47,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-21 23:02:47,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-10-21 23:02:47,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-21 23:02:47,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 274 transitions. [2020-10-21 23:02:47,619 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 274 transitions. Word has length 7 [2020-10-21 23:02:47,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:02:47,620 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 274 transitions. [2020-10-21 23:02:47,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:02:47,620 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 274 transitions. [2020-10-21 23:02:47,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 23:02:47,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:02:47,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:02:47,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 23:02:47,621 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:02:47,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:02:47,622 INFO L82 PathProgramCache]: Analyzing trace with hash 608402534, now seen corresponding path program 1 times [2020-10-21 23:02:47,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:02:47,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624784323] [2020-10-21 23:02:47,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:02:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:02:47,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:02:47,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624784323] [2020-10-21 23:02:47,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:02:47,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:02:47,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407399558] [2020-10-21 23:02:47,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:02:47,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:02:47,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:02:47,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:02:47,697 INFO L87 Difference]: Start difference. First operand 120 states and 274 transitions. Second operand 3 states. [2020-10-21 23:02:47,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:02:47,703 INFO L93 Difference]: Finished difference Result 110 states and 247 transitions. [2020-10-21 23:02:47,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:02:47,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 23:02:47,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:02:47,705 INFO L225 Difference]: With dead ends: 110 [2020-10-21 23:02:47,705 INFO L226 Difference]: Without dead ends: 110 [2020-10-21 23:02:47,705 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 [2020-10-21 23:02:47,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-21 23:02:47,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-10-21 23:02:47,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-21 23:02:47,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 247 transitions. [2020-10-21 23:02:47,714 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 247 transitions. Word has length 8 [2020-10-21 23:02:47,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:02:47,714 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 247 transitions. [2020-10-21 23:02:47,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:02:47,714 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 247 transitions. [2020-10-21 23:02:47,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 23:02:47,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:02:47,716 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:02:47,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 23:02:47,716 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:02:47,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:02:47,716 INFO L82 PathProgramCache]: Analyzing trace with hash 925595283, now seen corresponding path program 1 times [2020-10-21 23:02:47,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:02:47,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630863581] [2020-10-21 23:02:47,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:02:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:02:47,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:02:47,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630863581] [2020-10-21 23:02:47,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:02:47,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:02:47,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006498883] [2020-10-21 23:02:47,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:02:47,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:02:47,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:02:47,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:02:47,764 INFO L87 Difference]: Start difference. First operand 110 states and 247 transitions. Second operand 3 states. [2020-10-21 23:02:47,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:02:47,779 INFO L93 Difference]: Finished difference Result 151 states and 332 transitions. [2020-10-21 23:02:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:02:47,779 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-21 23:02:47,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:02:47,780 INFO L225 Difference]: With dead ends: 151 [2020-10-21 23:02:47,781 INFO L226 Difference]: Without dead ends: 82 [2020-10-21 23:02:47,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:02:47,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-21 23:02:47,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-10-21 23:02:47,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-21 23:02:47,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 176 transitions. [2020-10-21 23:02:47,787 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 176 transitions. Word has length 10 [2020-10-21 23:02:47,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:02:47,788 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 176 transitions. [2020-10-21 23:02:47,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:02:47,788 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 176 transitions. [2020-10-21 23:02:47,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 23:02:47,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:02:47,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:02:47,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 23:02:47,789 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:02:47,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:02:47,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1371317674, now seen corresponding path program 1 times [2020-10-21 23:02:47,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:02:47,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343768557] [2020-10-21 23:02:47,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:02:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:02:47,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:02:47,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343768557] [2020-10-21 23:02:47,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:02:47,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:02:47,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654573162] [2020-10-21 23:02:47,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:02:47,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:02:47,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:02:47,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:02:47,841 INFO L87 Difference]: Start difference. First operand 82 states and 176 transitions. Second operand 3 states. [2020-10-21 23:02:47,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:02:47,848 INFO L93 Difference]: Finished difference Result 79 states and 168 transitions. [2020-10-21 23:02:47,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:02:47,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-21 23:02:47,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:02:47,849 INFO L225 Difference]: With dead ends: 79 [2020-10-21 23:02:47,849 INFO L226 Difference]: Without dead ends: 79 [2020-10-21 23:02:47,850 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 [2020-10-21 23:02:47,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-21 23:02:47,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-10-21 23:02:47,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-21 23:02:47,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 168 transitions. [2020-10-21 23:02:47,856 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 168 transitions. Word has length 11 [2020-10-21 23:02:47,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:02:47,856 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 168 transitions. [2020-10-21 23:02:47,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:02:47,856 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 168 transitions. [2020-10-21 23:02:47,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 23:02:47,857 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:02:47,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:02:47,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 23:02:47,858 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:02:47,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:02:47,858 INFO L82 PathProgramCache]: Analyzing trace with hash 416356511, now seen corresponding path program 1 times [2020-10-21 23:02:47,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:02:47,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946932360] [2020-10-21 23:02:47,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:02:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:02:47,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:02:47,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946932360] [2020-10-21 23:02:47,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:02:47,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:02:47,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005199217] [2020-10-21 23:02:47,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:02:47,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:02:47,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:02:47,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:02:47,927 INFO L87 Difference]: Start difference. First operand 79 states and 168 transitions. Second operand 4 states. [2020-10-21 23:02:47,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:02:47,954 INFO L93 Difference]: Finished difference Result 69 states and 123 transitions. [2020-10-21 23:02:47,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:02:47,955 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-21 23:02:47,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:02:47,956 INFO L225 Difference]: With dead ends: 69 [2020-10-21 23:02:47,956 INFO L226 Difference]: Without dead ends: 47 [2020-10-21 23:02:47,956 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 [2020-10-21 23:02:47,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-21 23:02:47,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-21 23:02:47,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-21 23:02:47,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 76 transitions. [2020-10-21 23:02:47,959 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 76 transitions. Word has length 12 [2020-10-21 23:02:47,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:02:47,960 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 76 transitions. [2020-10-21 23:02:47,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:02:47,960 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 76 transitions. [2020-10-21 23:02:47,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 23:02:47,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:02:47,961 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:02:47,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 23:02:47,961 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:02:47,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:02:47,962 INFO L82 PathProgramCache]: Analyzing trace with hash 43383505, now seen corresponding path program 1 times [2020-10-21 23:02:47,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:02:47,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459633550] [2020-10-21 23:02:47,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:02:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:02:48,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:02:48,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459633550] [2020-10-21 23:02:48,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:02:48,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 23:02:48,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194790597] [2020-10-21 23:02:48,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:02:48,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:02:48,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:02:48,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:02:48,073 INFO L87 Difference]: Start difference. First operand 47 states and 76 transitions. Second operand 5 states. [2020-10-21 23:02:48,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:02:48,110 INFO L93 Difference]: Finished difference Result 37 states and 54 transitions. [2020-10-21 23:02:48,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:02:48,111 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-21 23:02:48,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:02:48,111 INFO L225 Difference]: With dead ends: 37 [2020-10-21 23:02:48,111 INFO L226 Difference]: Without dead ends: 29 [2020-10-21 23:02:48,112 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:02:48,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-21 23:02:48,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-21 23:02:48,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-21 23:02:48,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2020-10-21 23:02:48,114 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 14 [2020-10-21 23:02:48,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:02:48,114 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2020-10-21 23:02:48,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:02:48,114 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2020-10-21 23:02:48,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 23:02:48,115 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:02:48,115 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:02:48,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 23:02:48,116 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:02:48,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:02:48,116 INFO L82 PathProgramCache]: Analyzing trace with hash -839231175, now seen corresponding path program 1 times [2020-10-21 23:02:48,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:02:48,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558463284] [2020-10-21 23:02:48,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:02:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:02:48,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:02:48,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558463284] [2020-10-21 23:02:48,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:02:48,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 23:02:48,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972731584] [2020-10-21 23:02:48,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 23:02:48,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:02:48,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 23:02:48,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-21 23:02:48,417 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 6 states. [2020-10-21 23:02:48,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:02:48,576 INFO L93 Difference]: Finished difference Result 35 states and 46 transitions. [2020-10-21 23:02:48,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 23:02:48,576 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-21 23:02:48,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:02:48,577 INFO L225 Difference]: With dead ends: 35 [2020-10-21 23:02:48,577 INFO L226 Difference]: Without dead ends: 25 [2020-10-21 23:02:48,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-21 23:02:48,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-21 23:02:48,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-10-21 23:02:48,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-21 23:02:48,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2020-10-21 23:02:48,579 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 16 [2020-10-21 23:02:48,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:02:48,580 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2020-10-21 23:02:48,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 23:02:48,580 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2020-10-21 23:02:48,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 23:02:48,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:02:48,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:02:48,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 23:02:48,581 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:02:48,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:02:48,582 INFO L82 PathProgramCache]: Analyzing trace with hash -65876487, now seen corresponding path program 2 times [2020-10-21 23:02:48,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:02:48,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227061242] [2020-10-21 23:02:48,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:02:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 23:02:48,629 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 23:02:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 23:02:48,666 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 23:02:48,703 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 23:02:48,703 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 23:02:48,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-21 23:02:48,704 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-21 23:02:48,727 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [818] [818] L4-->L827: Formula: (let ((.cse9 (= (mod ~x$r_buff1_thd0~0_In-986659206 256) 0)) (.cse8 (= (mod ~x$w_buff1_used~0_In-986659206 256) 0)) (.cse7 (= (mod ~x$r_buff0_thd0~0_In-986659206 256) 0)) (.cse6 (= (mod ~x$w_buff0_used~0_In-986659206 256) 0))) (let ((.cse1 (not .cse6)) (.cse2 (not .cse7)) (.cse3 (not .cse8)) (.cse4 (not .cse9)) (.cse5 (or .cse8 .cse9)) (.cse0 (or .cse6 .cse7))) (and (= ~x$r_buff1_thd0~0_Out-986659206 ~x$r_buff1_thd0~0_In-986659206) (or (and .cse0 (= ~x$w_buff0_used~0_In-986659206 ~x$w_buff0_used~0_Out-986659206)) (and .cse1 .cse2 (= ~x$w_buff0_used~0_Out-986659206 0))) (not (= ULTIMATE.start_assume_abort_if_not_~cond_In-986659206 0)) (or (and .cse3 (= ~x$w_buff1_used~0_Out-986659206 0) .cse4) (and (= ~x$w_buff1_used~0_In-986659206 ~x$w_buff1_used~0_Out-986659206) .cse5)) (= ~x$r_buff0_thd0~0_Out-986659206 ~x$r_buff0_thd0~0_In-986659206) (or (and .cse1 (= ~x$w_buff0~0_In-986659206 ~x~0_Out-986659206) .cse2) (and (or (and (= ~x$w_buff1~0_In-986659206 ~x~0_Out-986659206) .cse3 .cse4) (and (= ~x~0_In-986659206 ~x~0_Out-986659206) .cse5)) .cse0))))) InVars {~x$w_buff0~0=~x$w_buff0~0_In-986659206, ~x$r_buff0_thd0~0=~x$r_buff0_thd0~0_In-986659206, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_In-986659206, ~x$w_buff1~0=~x$w_buff1~0_In-986659206, ~x$w_buff1_used~0=~x$w_buff1_used~0_In-986659206, ~x$r_buff1_thd0~0=~x$r_buff1_thd0~0_In-986659206, ~x~0=~x~0_In-986659206, ~x$w_buff0_used~0=~x$w_buff0_used~0_In-986659206} OutVars{~x$w_buff0~0=~x$w_buff0~0_In-986659206, ~x$r_buff0_thd0~0=~x$r_buff0_thd0~0_Out-986659206, ULTIMATE.start_main_#t~ite39=|ULTIMATE.start_main_#t~ite39_Out-986659206|, ~x$w_buff1~0=~x$w_buff1~0_In-986659206, ~x$w_buff1_used~0=~x$w_buff1_used~0_Out-986659206, ULTIMATE.start_main_#t~ite36=|ULTIMATE.start_main_#t~ite36_Out-986659206|, ULTIMATE.start_main_#t~ite38=|ULTIMATE.start_main_#t~ite38_Out-986659206|, ULTIMATE.start_main_#t~ite37=|ULTIMATE.start_main_#t~ite37_Out-986659206|, ~x$r_buff1_thd0~0=~x$r_buff1_thd0~0_Out-986659206, ~x$w_buff0_used~0=~x$w_buff0_used~0_Out-986659206, ULTIMATE.start_main_#t~ite41=|ULTIMATE.start_main_#t~ite41_Out-986659206|, ULTIMATE.start_main_#t~ite40=|ULTIMATE.start_main_#t~ite40_Out-986659206|, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_In-986659206, ~x~0=~x~0_Out-986659206} AuxVars[] AssignedVars[~x$r_buff0_thd0~0, ULTIMATE.start_main_#t~ite41, ULTIMATE.start_main_#t~ite40, ULTIMATE.start_main_#t~ite39, ~x$w_buff1_used~0, ULTIMATE.start_main_#t~ite36, ULTIMATE.start_main_#t~ite38, ULTIMATE.start_main_#t~ite37, ~x$r_buff1_thd0~0, ~x~0, ~x$w_buff0_used~0] because there is no mapped edge [2020-10-21 23:02:48,733 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-21 23:02:48,733 WARN L224 RCFGBacktranslator]: unable to determine which branch was taken at C: __VERIFIER_atomic_begin() [770] [2020-10-21 23:02:48,735 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-21 23:02:48,735 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-21 23:02:48,735 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-21 23:02:48,735 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-21 23:02:48,735 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-21 23:02:48,735 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-21 23:02:48,736 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-21 23:02:48,736 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-21 23:02:48,736 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-21 23:02:48,736 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-21 23:02:48,737 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-21 23:02:48,737 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-21 23:02:48,737 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-21 23:02:48,737 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-21 23:02:48,737 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-21 23:02:48,737 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-21 23:02:48,738 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-21 23:02:48,738 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-21 23:02:48,738 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-21 23:02:48,738 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-21 23:02:48,738 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-21 23:02:48,739 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-21 23:02:48,739 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-21 23:02:48,739 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-21 23:02:48,739 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-21 23:02:48,739 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-21 23:02:48,740 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-21 23:02:48,740 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-21 23:02:48,740 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-21 23:02:48,740 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-21 23:02:48,740 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-21 23:02:48,740 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-21 23:02:48,741 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-21 23:02:48,741 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-21 23:02:48,741 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-21 23:02:48,741 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-21 23:02:48,741 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-21 23:02:48,742 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-21 23:02:48,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 11:02:48 BasicIcfg [2020-10-21 23:02:48,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 23:02:48,800 INFO L168 Benchmark]: Toolchain (without parser) took 7759.20 ms. Allocated memory was 140.0 MB in the beginning and 325.6 MB in the end (delta: 185.6 MB). Free memory was 101.0 MB in the beginning and 227.0 MB in the end (delta: -126.0 MB). Peak memory consumption was 59.6 MB. Max. memory is 7.1 GB. [2020-10-21 23:02:48,801 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-21 23:02:48,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 847.29 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 100.1 MB in the beginning and 153.9 MB in the end (delta: -53.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-10-21 23:02:48,803 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.22 ms. Allocated memory is still 202.4 MB. Free memory was 153.9 MB in the beginning and 151.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-21 23:02:48,806 INFO L168 Benchmark]: Boogie Preprocessor took 35.83 ms. Allocated memory is still 202.4 MB. Free memory was 151.1 MB in the beginning and 149.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:02:48,806 INFO L168 Benchmark]: RCFGBuilder took 1728.30 ms. Allocated memory was 202.4 MB in the beginning and 236.5 MB in the end (delta: 34.1 MB). Free memory was 149.1 MB in the beginning and 83.2 MB in the end (delta: 65.9 MB). Peak memory consumption was 100.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:02:48,807 INFO L168 Benchmark]: TraceAbstraction took 5075.09 ms. Allocated memory was 236.5 MB in the beginning and 325.6 MB in the end (delta: 89.1 MB). Free memory was 83.2 MB in the beginning and 227.0 MB in the end (delta: -143.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-21 23:02:48,816 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 847.29 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 100.1 MB in the beginning and 153.9 MB in the end (delta: -53.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 62.22 ms. Allocated memory is still 202.4 MB. Free memory was 153.9 MB in the beginning and 151.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.83 ms. Allocated memory is still 202.4 MB. Free memory was 151.1 MB in the beginning and 149.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1728.30 ms. Allocated memory was 202.4 MB in the beginning and 236.5 MB in the end (delta: 34.1 MB). Free memory was 149.1 MB in the beginning and 83.2 MB in the end (delta: 65.9 MB). Peak memory consumption was 100.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5075.09 ms. Allocated memory was 236.5 MB in the beginning and 325.6 MB in the end (delta: 89.1 MB). Free memory was 83.2 MB in the beginning and 227.0 MB in the end (delta: -143.7 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 596 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 43 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.1s, 91 PlacesBefore, 27 PlacesAfterwards, 87 TransitionsBefore, 21 TransitionsAfterwards, 1096 CoEnabledTransitionPairs, 7 FixpointIterations, 34 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 84 TotalNumberOfCompositions, 3233 MoverChecksTotal - CounterExampleResult [Line: 18]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p1_EBX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L720] 0 _Bool x$flush_delayed; [L721] 0 int x$mem_tmp; [L722] 0 _Bool x$r_buff0_thd0; [L723] 0 _Bool x$r_buff0_thd1; [L724] 0 _Bool x$r_buff0_thd2; [L725] 0 _Bool x$r_buff1_thd0; [L726] 0 _Bool x$r_buff1_thd1; [L727] 0 _Bool x$r_buff1_thd2; [L728] 0 _Bool x$read_delayed; [L729] 0 int *x$read_delayed_var; [L730] 0 int x$w_buff0; [L731] 0 _Bool x$w_buff0_used; [L732] 0 int x$w_buff1; [L733] 0 _Bool x$w_buff1_used; [L735] 0 int y = 0; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L813] 0 pthread_t t1637; [L814] FCALL, FORK 0 pthread_create(&t1637, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L815] 0 pthread_t t1638; [L816] FCALL, FORK 0 pthread_create(&t1638, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L771] 2 x$w_buff1 = x$w_buff0 [L772] 2 x$w_buff0 = 1 [L773] 2 x$w_buff1_used = x$w_buff0_used [L774] 2 x$w_buff0_used = (_Bool)1 [L19] COND FALSE 2 !(!expression) [L776] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L777] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L778] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L779] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L782] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L785] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L788] 2 __unbuffered_p1_EBX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L741] 1 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L746] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L747] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L748] 1 x$flush_delayed = weak$$choice2 [L749] 1 x$mem_tmp = x [L750] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L750] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L751] EXPR 1 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L751] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L752] EXPR 1 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L752] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L753] EXPR 1 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L753] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L754] EXPR 1 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L754] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L754] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0 [L754] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L754] EXPR 1 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L754] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L755] EXPR 1 weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L755] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1) [L755] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L755] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1) [L755] EXPR 1 weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L755] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L756] EXPR 1 weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L756] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L756] EXPR 1 weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L756] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L757] 1 __unbuffered_p0_EAX = x [L758] EXPR 1 x$flush_delayed ? x$mem_tmp : x [L758] 1 x = x$flush_delayed ? x$mem_tmp : x [L759] 1 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L791] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L791] EXPR 2 x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x [L791] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L791] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L792] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L792] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L793] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L793] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L794] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L794] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L795] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L795] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L798] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L800] 2 return 0; [L764] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L766] 1 return 0; [L818] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L829] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 1) [L19] COND TRUE 0 !expression [L18] COND FALSE 0 !(0) [L18] 0 __assert_fail ("0", "rfi003_pso.oepc.c", 9, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 85 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.8s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 122 SDtfs, 87 SDslu, 98 SDs, 0 SdLazy, 62 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 5400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...