/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/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 04:00:24,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 04:00:24,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 04:00:24,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 04:00:24,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 04:00:24,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 04:00:24,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 04:00:24,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 04:00:24,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 04:00:24,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 04:00:24,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 04:00:24,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 04:00:24,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 04:00:24,694 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 04:00:24,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 04:00:24,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 04:00:24,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 04:00:24,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 04:00:24,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 04:00:24,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 04:00:24,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 04:00:24,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 04:00:24,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 04:00:24,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 04:00:24,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 04:00:24,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 04:00:24,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 04:00:24,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 04:00:24,727 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 04:00:24,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 04:00:24,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 04:00:24,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 04:00:24,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 04:00:24,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 04:00:24,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 04:00:24,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 04:00:24,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 04:00:24,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 04:00:24,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 04:00:24,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 04:00:24,736 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 04:00:24,737 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-22 04:00:24,777 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 04:00:24,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 04:00:24,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 04:00:24,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 04:00:24,780 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 04:00:24,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 04:00:24,781 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 04:00:24,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 04:00:24,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 04:00:24,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 04:00:24,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 04:00:24,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 04:00:24,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 04:00:24,783 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 04:00:24,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 04:00:24,784 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 04:00:24,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 04:00:24,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 04:00:24,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 04:00:24,785 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 04:00:24,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 04:00:24,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 04:00:24,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 04:00:24,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 04:00:24,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 04:00:24,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 04:00:24,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 04:00:24,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 04:00:24,786 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 04:00:24,786 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-08-22 04:00:25,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 04:00:25,089 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 04:00:25,092 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 04:00:25,094 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 04:00:25,094 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 04:00:25,095 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-08-22 04:00:25,153 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9fe7d6b14/1de0b31c6af8447bba97ce73e13b0969/FLAGed3efb243 [2020-08-22 04:00:25,639 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 04:00:25,640 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-08-22 04:00:25,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9fe7d6b14/1de0b31c6af8447bba97ce73e13b0969/FLAGed3efb243 [2020-08-22 04:00:25,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9fe7d6b14/1de0b31c6af8447bba97ce73e13b0969 [2020-08-22 04:00:25,953 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 04:00:25,955 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 04:00:25,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 04:00:25,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 04:00:25,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 04:00:25,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:00:25" (1/1) ... [2020-08-22 04:00:25,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72e3fcd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:25, skipping insertion in model container [2020-08-22 04:00:25,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:00:25" (1/1) ... [2020-08-22 04:00:25,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 04:00:26,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 04:00:26,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 04:00:26,533 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 04:00:26,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 04:00:26,666 INFO L208 MainTranslator]: Completed translation [2020-08-22 04:00:26,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:26 WrapperNode [2020-08-22 04:00:26,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 04:00:26,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 04:00:26,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 04:00:26,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 04:00:26,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:26" (1/1) ... [2020-08-22 04:00:26,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:26" (1/1) ... [2020-08-22 04:00:26,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:26" (1/1) ... [2020-08-22 04:00:26,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:26" (1/1) ... [2020-08-22 04:00:26,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:26" (1/1) ... [2020-08-22 04:00:26,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:26" (1/1) ... [2020-08-22 04:00:26,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:26" (1/1) ... [2020-08-22 04:00:26,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 04:00:26,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 04:00:26,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 04:00:26,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 04:00:26,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 04:00:26,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 04:00:26,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 04:00:26,836 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-08-22 04:00:26,836 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-08-22 04:00:26,836 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-08-22 04:00:26,836 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-08-22 04:00:26,836 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-08-22 04:00:26,837 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-08-22 04:00:26,837 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-08-22 04:00:26,837 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-08-22 04:00:26,837 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-08-22 04:00:26,837 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-08-22 04:00:26,837 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-08-22 04:00:26,837 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-08-22 04:00:26,838 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-08-22 04:00:26,838 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-08-22 04:00:26,838 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-08-22 04:00:26,838 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-08-22 04:00:26,838 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-08-22 04:00:26,839 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-08-22 04:00:26,839 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-08-22 04:00:26,839 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-08-22 04:00:26,839 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-08-22 04:00:26,839 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-08-22 04:00:26,839 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-08-22 04:00:26,839 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-08-22 04:00:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-08-22 04:00:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-08-22 04:00:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-08-22 04:00:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-08-22 04:00:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-08-22 04:00:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-08-22 04:00:26,841 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-08-22 04:00:26,841 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-08-22 04:00:26,841 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-08-22 04:00:26,841 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-08-22 04:00:26,841 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-08-22 04:00:26,841 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-08-22 04:00:26,841 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-08-22 04:00:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-08-22 04:00:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-08-22 04:00:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-08-22 04:00:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-08-22 04:00:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-08-22 04:00:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 04:00:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 04:00:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 04:00:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-08-22 04:00:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-08-22 04:00:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-08-22 04:00:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-08-22 04:00:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-08-22 04:00:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-08-22 04:00:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-08-22 04:00:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-08-22 04:00:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-08-22 04:00:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-08-22 04:00:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-08-22 04:00:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-08-22 04:00:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-08-22 04:00:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-08-22 04:00:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-08-22 04:00:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-08-22 04:00:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-08-22 04:00:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-08-22 04:00:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-08-22 04:00:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-08-22 04:00:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-08-22 04:00:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-08-22 04:00:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-08-22 04:00:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-08-22 04:00:26,847 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-08-22 04:00:26,847 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-08-22 04:00:26,847 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-08-22 04:00:26,847 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-08-22 04:00:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-08-22 04:00:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-08-22 04:00:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-08-22 04:00:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-08-22 04:00:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-08-22 04:00:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-08-22 04:00:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-08-22 04:00:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-08-22 04:00:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-08-22 04:00:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-08-22 04:00:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-08-22 04:00:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-08-22 04:00:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-08-22 04:00:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-08-22 04:00:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 04:00:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 04:00:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 04:00:28,122 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 04:00:28,123 INFO L295 CfgBuilder]: Removed 17 assume(true) statements. [2020-08-22 04:00:28,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:00:28 BoogieIcfgContainer [2020-08-22 04:00:28,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 04:00:28,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 04:00:28,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 04:00:28,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 04:00:28,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:00:25" (1/3) ... [2020-08-22 04:00:28,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295112a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:00:28, skipping insertion in model container [2020-08-22 04:00:28,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:26" (2/3) ... [2020-08-22 04:00:28,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295112a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:00:28, skipping insertion in model container [2020-08-22 04:00:28,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:00:28" (3/3) ... [2020-08-22 04:00:28,140 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2020-08-22 04:00:28,151 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 04:00:28,159 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 04:00:28,174 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 04:00:28,202 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 04:00:28,202 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 04:00:28,203 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 04:00:28,203 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 04:00:28,203 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 04:00:28,203 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 04:00:28,203 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 04:00:28,204 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 04:00:28,232 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states. [2020-08-22 04:00:28,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-22 04:00:28,250 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:00:28,251 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:00:28,251 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:00:28,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:00:28,258 INFO L82 PathProgramCache]: Analyzing trace with hash 754746292, now seen corresponding path program 1 times [2020-08-22 04:00:28,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:00:28,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1029324371] [2020-08-22 04:00:28,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:00:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,059 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-22 04:00:29,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:00:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:00:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:00:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 04:00:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 04:00:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-22 04:00:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:00:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:00:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 04:00:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 04:00:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:00:29,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 04:00:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 04:00:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:00:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 04:00:29,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 04:00:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-22 04:00:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 04:00:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 04:00:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 04:00:29,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-22 04:00:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 04:00:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 04:00:29,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1029324371] [2020-08-22 04:00:29,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:00:29,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 04:00:29,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153137711] [2020-08-22 04:00:29,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 04:00:29,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:00:29,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 04:00:29,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 04:00:29,662 INFO L87 Difference]: Start difference. First operand 499 states. Second operand 8 states. [2020-08-22 04:00:30,017 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-22 04:00:30,158 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-22 04:00:30,437 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-22 04:00:30,622 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-22 04:00:38,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:00:38,205 INFO L93 Difference]: Finished difference Result 1306 states and 2150 transitions. [2020-08-22 04:00:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 04:00:38,215 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-08-22 04:00:38,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:00:38,243 INFO L225 Difference]: With dead ends: 1306 [2020-08-22 04:00:38,244 INFO L226 Difference]: Without dead ends: 810 [2020-08-22 04:00:38,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-08-22 04:00:38,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-22 04:00:38,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-08-22 04:00:38,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-08-22 04:00:38,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 718 transitions. [2020-08-22 04:00:38,435 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 718 transitions. Word has length 240 [2020-08-22 04:00:38,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:00:38,436 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 718 transitions. [2020-08-22 04:00:38,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 04:00:38,436 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 718 transitions. [2020-08-22 04:00:38,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-22 04:00:38,441 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:00:38,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:00:38,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 04:00:38,442 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:00:38,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:00:38,442 INFO L82 PathProgramCache]: Analyzing trace with hash -332213258, now seen corresponding path program 1 times [2020-08-22 04:00:38,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:00:38,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2035172289] [2020-08-22 04:00:38,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:00:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:38,778 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-22 04:00:38,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:00:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:38,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:00:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:38,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:00:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:38,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 04:00:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:38,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 04:00:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:38,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-22 04:00:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:38,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:00:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:38,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:00:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:38,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 04:00:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:38,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 04:00:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:38,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:00:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:38,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 04:00:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:38,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 04:00:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:38,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:00:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:38,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 04:00:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:38,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 04:00:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:39,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-22 04:00:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:39,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 04:00:39,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:39,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 04:00:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:39,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 04:00:39,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:39,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-22 04:00:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:39,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 04:00:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:39,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 04:00:39,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2035172289] [2020-08-22 04:00:39,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:00:39,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 04:00:39,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399711117] [2020-08-22 04:00:39,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 04:00:39,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:00:39,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 04:00:39,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 04:00:39,156 INFO L87 Difference]: Start difference. First operand 490 states and 718 transitions. Second operand 8 states. [2020-08-22 04:00:39,433 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-22 04:00:39,816 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-22 04:00:39,988 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-22 04:00:46,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:00:46,277 INFO L93 Difference]: Finished difference Result 1277 states and 1950 transitions. [2020-08-22 04:00:46,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 04:00:46,278 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-08-22 04:00:46,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:00:46,286 INFO L225 Difference]: With dead ends: 1277 [2020-08-22 04:00:46,286 INFO L226 Difference]: Without dead ends: 810 [2020-08-22 04:00:46,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-08-22 04:00:46,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-22 04:00:46,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-08-22 04:00:46,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-08-22 04:00:46,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 717 transitions. [2020-08-22 04:00:46,384 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 717 transitions. Word has length 240 [2020-08-22 04:00:46,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:00:46,384 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 717 transitions. [2020-08-22 04:00:46,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 04:00:46,385 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 717 transitions. [2020-08-22 04:00:46,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-22 04:00:46,419 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:00:46,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:00:46,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 04:00:46,419 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:00:46,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:00:46,422 INFO L82 PathProgramCache]: Analyzing trace with hash -275347912, now seen corresponding path program 1 times [2020-08-22 04:00:46,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:00:46,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [41936794] [2020-08-22 04:00:46,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:00:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:46,769 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-22 04:00:46,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:00:46,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:46,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:00:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:46,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:00:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:46,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 04:00:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:47,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 04:00:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:47,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-22 04:00:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:47,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:00:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:47,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:00:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:47,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 04:00:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:47,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 04:00:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:47,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:00:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:47,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 04:00:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:47,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 04:00:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:47,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:00:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:47,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 04:00:47,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:47,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 04:00:47,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:47,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-22 04:00:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:47,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 04:00:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:47,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 04:00:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:47,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 04:00:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:47,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-22 04:00:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:47,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 04:00:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:47,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 04:00:47,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [41936794] [2020-08-22 04:00:47,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:00:47,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 04:00:47,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560578586] [2020-08-22 04:00:47,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 04:00:47,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:00:47,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 04:00:47,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-22 04:00:47,296 INFO L87 Difference]: Start difference. First operand 490 states and 717 transitions. Second operand 9 states. [2020-08-22 04:00:47,564 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-22 04:00:47,703 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-22 04:00:47,895 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-22 04:00:55,190 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-22 04:00:55,380 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-22 04:01:00,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:01:00,676 INFO L93 Difference]: Finished difference Result 1991 states and 3097 transitions. [2020-08-22 04:01:00,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-22 04:01:00,677 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 240 [2020-08-22 04:01:00,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:01:00,689 INFO L225 Difference]: With dead ends: 1991 [2020-08-22 04:01:00,689 INFO L226 Difference]: Without dead ends: 1532 [2020-08-22 04:01:00,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-08-22 04:01:00,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2020-08-22 04:01:00,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 965. [2020-08-22 04:01:00,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-22 04:01:00,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1426 transitions. [2020-08-22 04:01:00,902 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1426 transitions. Word has length 240 [2020-08-22 04:01:00,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:01:00,903 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1426 transitions. [2020-08-22 04:01:00,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 04:01:00,903 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1426 transitions. [2020-08-22 04:01:00,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-22 04:01:00,907 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:01:00,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:01:00,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 04:01:00,908 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:01:00,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:01:00,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1349355716, now seen corresponding path program 1 times [2020-08-22 04:01:00,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:01:00,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [749959521] [2020-08-22 04:01:00,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:01:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,302 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-22 04:01:01,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:01:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:01:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:01:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 04:01:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 04:01:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-22 04:01:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:01:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:01:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 04:01:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 04:01:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:01:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 04:01:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 04:01:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:01:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 04:01:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 04:01:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-22 04:01:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 04:01:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 04:01:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 04:01:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-22 04:01:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 04:01:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:01,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 04:01:01,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [749959521] [2020-08-22 04:01:01,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:01:01,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 04:01:01,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032353303] [2020-08-22 04:01:01,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 04:01:01,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:01:01,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 04:01:01,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-22 04:01:01,932 INFO L87 Difference]: Start difference. First operand 965 states and 1426 transitions. Second operand 10 states. [2020-08-22 04:01:02,364 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-22 04:01:02,518 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-22 04:01:10,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:01:10,676 INFO L93 Difference]: Finished difference Result 2455 states and 3744 transitions. [2020-08-22 04:01:10,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 04:01:10,677 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-22 04:01:10,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:01:10,689 INFO L225 Difference]: With dead ends: 2455 [2020-08-22 04:01:10,689 INFO L226 Difference]: Without dead ends: 1521 [2020-08-22 04:01:10,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-08-22 04:01:10,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2020-08-22 04:01:10,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 965. [2020-08-22 04:01:10,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-22 04:01:10,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1419 transitions. [2020-08-22 04:01:10,843 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1419 transitions. Word has length 240 [2020-08-22 04:01:10,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:01:10,843 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1419 transitions. [2020-08-22 04:01:10,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 04:01:10,843 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1419 transitions. [2020-08-22 04:01:10,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-22 04:01:10,847 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:01:10,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:01:10,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 04:01:10,848 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:01:10,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:01:10,848 INFO L82 PathProgramCache]: Analyzing trace with hash -275622472, now seen corresponding path program 1 times [2020-08-22 04:01:10,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:01:10,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874281220] [2020-08-22 04:01:10,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:01:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,160 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-22 04:01:11,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:01:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:01:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:01:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 04:01:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 04:01:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-22 04:01:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:01:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:01:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 04:01:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 04:01:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:01:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 04:01:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 04:01:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:01:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 04:01:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 04:01:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-22 04:01:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 04:01:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 04:01:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 04:01:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-22 04:01:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 04:01:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:11,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 04:01:11,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874281220] [2020-08-22 04:01:11,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:01:11,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 04:01:11,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952564763] [2020-08-22 04:01:11,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 04:01:11,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:01:11,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 04:01:11,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-22 04:01:11,519 INFO L87 Difference]: Start difference. First operand 965 states and 1419 transitions. Second operand 10 states. [2020-08-22 04:01:11,778 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-22 04:01:11,904 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-22 04:01:12,090 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-22 04:01:18,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:01:18,226 INFO L93 Difference]: Finished difference Result 2451 states and 3722 transitions. [2020-08-22 04:01:18,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 04:01:18,227 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-22 04:01:18,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:01:18,236 INFO L225 Difference]: With dead ends: 2451 [2020-08-22 04:01:18,236 INFO L226 Difference]: Without dead ends: 1517 [2020-08-22 04:01:18,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-08-22 04:01:18,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2020-08-22 04:01:18,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 965. [2020-08-22 04:01:18,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-22 04:01:18,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1412 transitions. [2020-08-22 04:01:18,436 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1412 transitions. Word has length 240 [2020-08-22 04:01:18,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:01:18,437 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1412 transitions. [2020-08-22 04:01:18,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 04:01:18,437 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1412 transitions. [2020-08-22 04:01:18,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-22 04:01:18,443 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:01:18,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:01:18,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 04:01:18,443 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:01:18,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:01:18,444 INFO L82 PathProgramCache]: Analyzing trace with hash -518080580, now seen corresponding path program 1 times [2020-08-22 04:01:18,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:01:18,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839198947] [2020-08-22 04:01:18,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:01:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:18,821 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-22 04:01:18,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:01:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:18,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:01:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:18,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:01:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:18,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 04:01:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:19,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 04:01:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:19,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-22 04:01:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:19,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:01:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:19,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:01:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:19,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 04:01:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:19,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 04:01:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:19,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:01:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:19,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 04:01:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:19,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 04:01:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:19,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:01:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:19,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 04:01:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:19,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 04:01:19,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:19,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-22 04:01:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:19,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 04:01:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:19,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 04:01:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:19,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 04:01:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:19,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-22 04:01:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:19,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 04:01:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:19,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 04:01:19,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1839198947] [2020-08-22 04:01:19,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:01:19,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 04:01:19,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205763763] [2020-08-22 04:01:19,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 04:01:19,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:01:19,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 04:01:19,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-22 04:01:19,389 INFO L87 Difference]: Start difference. First operand 965 states and 1412 transitions. Second operand 10 states. [2020-08-22 04:01:19,793 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-22 04:01:19,986 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-22 04:01:20,251 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 126