/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/token_ring.01.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 18:22:41,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 18:22:41,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 18:22:41,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 18:22:41,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 18:22:41,759 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 18:22:41,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 18:22:41,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 18:22:41,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 18:22:41,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 18:22:41,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 18:22:41,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 18:22:41,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 18:22:41,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 18:22:41,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 18:22:41,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 18:22:41,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 18:22:41,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 18:22:41,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 18:22:41,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 18:22:41,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 18:22:41,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 18:22:41,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 18:22:41,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 18:22:41,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 18:22:41,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 18:22:41,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 18:22:41,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 18:22:41,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 18:22:41,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-07-20 18:22:41,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 18:22:41,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 18:22:41,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 18:22:41,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 18:22:41,863 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 18:22:41,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 18:22:41,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 18:22:41,869 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 18:22:41,869 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 18:22:41,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 18:22:41,869 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 18:22:41,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 18:22:41,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 18:22:41,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 18:22:41,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 18:22:41,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 18:22:41,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 18:22:41,873 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 18:22:41,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 18:22:41,873 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 18:22:41,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 18:22:41,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 18:22:41,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 18:22:41,874 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 18:22:41,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 18:22:41,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 18:22:41,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 18:22:41,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 18:22:41,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 18:22:41,876 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 18:22:41,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:41,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 18:22:41,877 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 18:22:41,877 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 18:22:42,193 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 18:22:42,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 18:22:42,210 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 18:22:42,212 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 18:22:42,212 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 18:22:42,213 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.01.cil-2.c [2020-07-20 18:22:42,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eab29e8f7/148b7af285e440a49d47c8089d51b210/FLAGbcb0c1fb5 [2020-07-20 18:22:42,720 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 18:22:42,722 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.01.cil-2.c [2020-07-20 18:22:42,732 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eab29e8f7/148b7af285e440a49d47c8089d51b210/FLAGbcb0c1fb5 [2020-07-20 18:22:43,073 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eab29e8f7/148b7af285e440a49d47c8089d51b210 [2020-07-20 18:22:43,084 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 18:22:43,087 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 18:22:43,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 18:22:43,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 18:22:43,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 18:22:43,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:22:43" (1/1) ... [2020-07-20 18:22:43,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e06193f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:22:43, skipping insertion in model container [2020-07-20 18:22:43,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:22:43" (1/1) ... [2020-07-20 18:22:43,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 18:22:43,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 18:22:43,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 18:22:43,416 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 18:22:43,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 18:22:43,560 INFO L208 MainTranslator]: Completed translation [2020-07-20 18:22:43,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:22:43 WrapperNode [2020-07-20 18:22:43,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 18:22:43,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 18:22:43,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 18:22:43,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 18:22:43,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:22:43" (1/1) ... [2020-07-20 18:22:43,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:22:43" (1/1) ... [2020-07-20 18:22:43,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:22:43" (1/1) ... [2020-07-20 18:22:43,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:22:43" (1/1) ... [2020-07-20 18:22:43,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:22:43" (1/1) ... [2020-07-20 18:22:43,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:22:43" (1/1) ... [2020-07-20 18:22:43,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:22:43" (1/1) ... [2020-07-20 18:22:43,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 18:22:43,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 18:22:43,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 18:22:43,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 18:22:43,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:22:43" (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 [2020-07-20 18:22:43,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 18:22:43,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 18:22:43,673 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-07-20 18:22:43,673 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-07-20 18:22:43,673 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-07-20 18:22:43,673 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-07-20 18:22:43,674 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-07-20 18:22:43,674 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-07-20 18:22:43,674 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-07-20 18:22:43,674 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-07-20 18:22:43,674 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-07-20 18:22:43,674 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-07-20 18:22:43,674 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-07-20 18:22:43,675 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-07-20 18:22:43,675 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-07-20 18:22:43,675 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-07-20 18:22:43,675 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-07-20 18:22:43,675 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-07-20 18:22:43,675 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-07-20 18:22:43,676 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-07-20 18:22:43,676 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 18:22:43,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 18:22:43,676 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-07-20 18:22:43,676 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-07-20 18:22:43,677 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-07-20 18:22:43,677 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-07-20 18:22:43,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 18:22:43,677 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-07-20 18:22:43,677 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-07-20 18:22:43,677 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-07-20 18:22:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-07-20 18:22:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-07-20 18:22:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-07-20 18:22:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-07-20 18:22:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-07-20 18:22:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-07-20 18:22:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-07-20 18:22:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-07-20 18:22:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-07-20 18:22:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-07-20 18:22:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-07-20 18:22:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 18:22:43,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 18:22:43,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 18:22:44,157 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 18:22:44,157 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-20 18:22:44,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:22:44 BoogieIcfgContainer [2020-07-20 18:22:44,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 18:22:44,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 18:22:44,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 18:22:44,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 18:22:44,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 06:22:43" (1/3) ... [2020-07-20 18:22:44,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c20a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:22:44, skipping insertion in model container [2020-07-20 18:22:44,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:22:43" (2/3) ... [2020-07-20 18:22:44,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c20a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:22:44, skipping insertion in model container [2020-07-20 18:22:44,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:22:44" (3/3) ... [2020-07-20 18:22:44,173 INFO L109 eAbstractionObserver]: Analyzing ICFG token_ring.01.cil-2.c [2020-07-20 18:22:44,184 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 18:22:44,191 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 18:22:44,204 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 18:22:44,229 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 18:22:44,230 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 18:22:44,230 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 18:22:44,230 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 18:22:44,231 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 18:22:44,231 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 18:22:44,231 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 18:22:44,231 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 18:22:44,256 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2020-07-20 18:22:44,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 18:22:44,277 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:22:44,279 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] [2020-07-20 18:22:44,279 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:22:44,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:22:44,285 INFO L82 PathProgramCache]: Analyzing trace with hash -540085109, now seen corresponding path program 1 times [2020-07-20 18:22:44,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:22:44,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1789381153] [2020-07-20 18:22:44,293 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:44,490 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 18:22:44,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:22:44,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 18:22:44,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:22:44,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 18:22:44,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:22:44,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1789381153] [2020-07-20 18:22:44,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:22:44,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 18:22:44,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080583729] [2020-07-20 18:22:44,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 18:22:44,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:22:44,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 18:22:44,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:22:44,687 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 3 states. [2020-07-20 18:22:44,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:22:44,812 INFO L93 Difference]: Finished difference Result 402 states and 576 transitions. [2020-07-20 18:22:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 18:22:44,814 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-07-20 18:22:44,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:22:44,833 INFO L225 Difference]: With dead ends: 402 [2020-07-20 18:22:44,833 INFO L226 Difference]: Without dead ends: 257 [2020-07-20 18:22:44,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:22:44,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-07-20 18:22:44,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 251. [2020-07-20 18:22:44,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-07-20 18:22:44,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 338 transitions. [2020-07-20 18:22:44,944 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 338 transitions. Word has length 78 [2020-07-20 18:22:44,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:22:44,945 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 338 transitions. [2020-07-20 18:22:44,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 18:22:44,945 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 338 transitions. [2020-07-20 18:22:44,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 18:22:44,949 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:22:44,950 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] [2020-07-20 18:22:45,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:45,166 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:22:45,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:22:45,167 INFO L82 PathProgramCache]: Analyzing trace with hash -16764438, now seen corresponding path program 1 times [2020-07-20 18:22:45,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:22:45,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327978209] [2020-07-20 18:22:45,169 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:45,270 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 18:22:45,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:22:45,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 18:22:45,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:22:45,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 18:22:45,325 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:22:45,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327978209] [2020-07-20 18:22:45,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:22:45,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 18:22:45,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041362824] [2020-07-20 18:22:45,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 18:22:45,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:22:45,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 18:22:45,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 18:22:45,329 INFO L87 Difference]: Start difference. First operand 251 states and 338 transitions. Second operand 5 states. [2020-07-20 18:22:45,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:22:45,825 INFO L93 Difference]: Finished difference Result 591 states and 839 transitions. [2020-07-20 18:22:45,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 18:22:45,826 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-07-20 18:22:45,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:22:45,832 INFO L225 Difference]: With dead ends: 591 [2020-07-20 18:22:45,832 INFO L226 Difference]: Without dead ends: 359 [2020-07-20 18:22:45,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 18:22:45,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-07-20 18:22:45,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 299. [2020-07-20 18:22:45,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-07-20 18:22:45,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 387 transitions. [2020-07-20 18:22:45,890 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 387 transitions. Word has length 78 [2020-07-20 18:22:45,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:22:45,891 INFO L479 AbstractCegarLoop]: Abstraction has 299 states and 387 transitions. [2020-07-20 18:22:45,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 18:22:45,891 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 387 transitions. [2020-07-20 18:22:45,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 18:22:45,895 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:22:45,895 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] [2020-07-20 18:22:46,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:46,109 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:22:46,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:22:46,110 INFO L82 PathProgramCache]: Analyzing trace with hash 999803178, now seen corresponding path program 1 times [2020-07-20 18:22:46,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:22:46,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [986317150] [2020-07-20 18:22:46,111 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:46,220 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 18:22:46,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:22:46,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 18:22:46,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:22:46,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 18:22:46,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:22:46,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [986317150] [2020-07-20 18:22:46,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:22:46,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 18:22:46,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561371063] [2020-07-20 18:22:46,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 18:22:46,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:22:46,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 18:22:46,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 18:22:46,261 INFO L87 Difference]: Start difference. First operand 299 states and 387 transitions. Second operand 5 states. [2020-07-20 18:22:46,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:22:46,949 INFO L93 Difference]: Finished difference Result 889 states and 1176 transitions. [2020-07-20 18:22:46,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 18:22:46,950 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-07-20 18:22:46,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:22:46,956 INFO L225 Difference]: With dead ends: 889 [2020-07-20 18:22:46,956 INFO L226 Difference]: Without dead ends: 609 [2020-07-20 18:22:46,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 18:22:46,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2020-07-20 18:22:47,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 559. [2020-07-20 18:22:47,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-07-20 18:22:47,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 724 transitions. [2020-07-20 18:22:47,030 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 724 transitions. Word has length 78 [2020-07-20 18:22:47,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:22:47,033 INFO L479 AbstractCegarLoop]: Abstraction has 559 states and 724 transitions. [2020-07-20 18:22:47,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 18:22:47,033 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 724 transitions. [2020-07-20 18:22:47,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 18:22:47,040 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:22:47,040 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] [2020-07-20 18:22:47,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:47,254 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:22:47,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:22:47,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1751247338, now seen corresponding path program 1 times [2020-07-20 18:22:47,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:22:47,256 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913199922] [2020-07-20 18:22:47,257 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:47,326 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 18:22:47,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:22:47,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 18:22:47,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:22:47,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 18:22:47,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:22:47,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913199922] [2020-07-20 18:22:47,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:22:47,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 18:22:47,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561600676] [2020-07-20 18:22:47,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 18:22:47,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:22:47,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 18:22:47,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 18:22:47,381 INFO L87 Difference]: Start difference. First operand 559 states and 724 transitions. Second operand 5 states. [2020-07-20 18:22:47,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:22:47,731 INFO L93 Difference]: Finished difference Result 1099 states and 1441 transitions. [2020-07-20 18:22:47,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 18:22:47,732 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-07-20 18:22:47,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:22:47,738 INFO L225 Difference]: With dead ends: 1099 [2020-07-20 18:22:47,738 INFO L226 Difference]: Without dead ends: 559 [2020-07-20 18:22:47,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 18:22:47,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-07-20 18:22:47,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2020-07-20 18:22:47,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-07-20 18:22:47,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 712 transitions. [2020-07-20 18:22:47,805 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 712 transitions. Word has length 78 [2020-07-20 18:22:47,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:22:47,806 INFO L479 AbstractCegarLoop]: Abstraction has 559 states and 712 transitions. [2020-07-20 18:22:47,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 18:22:47,806 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 712 transitions. [2020-07-20 18:22:47,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 18:22:47,811 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:22:47,812 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] [2020-07-20 18:22:48,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:48,027 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:22:48,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:22:48,029 INFO L82 PathProgramCache]: Analyzing trace with hash -579817174, now seen corresponding path program 1 times [2020-07-20 18:22:48,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:22:48,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2027836899] [2020-07-20 18:22:48,031 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:48,125 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 18:22:48,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:22:48,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 18:22:48,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:22:48,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 18:22:48,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:22:48,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2027836899] [2020-07-20 18:22:48,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:22:48,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 18:22:48,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874912048] [2020-07-20 18:22:48,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 18:22:48,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:22:48,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 18:22:48,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 18:22:48,163 INFO L87 Difference]: Start difference. First operand 559 states and 712 transitions. Second operand 5 states. [2020-07-20 18:22:48,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:22:48,629 INFO L93 Difference]: Finished difference Result 1248 states and 1670 transitions. [2020-07-20 18:22:48,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 18:22:48,630 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-07-20 18:22:48,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:22:48,638 INFO L225 Difference]: With dead ends: 1248 [2020-07-20 18:22:48,638 INFO L226 Difference]: Without dead ends: 708 [2020-07-20 18:22:48,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 18:22:48,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2020-07-20 18:22:48,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 613. [2020-07-20 18:22:48,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2020-07-20 18:22:48,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 754 transitions. [2020-07-20 18:22:48,717 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 754 transitions. Word has length 78 [2020-07-20 18:22:48,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:22:48,717 INFO L479 AbstractCegarLoop]: Abstraction has 613 states and 754 transitions. [2020-07-20 18:22:48,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 18:22:48,718 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 754 transitions. [2020-07-20 18:22:48,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 18:22:48,721 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:22:48,721 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] [2020-07-20 18:22:48,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:48,922 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:22:48,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:22:48,923 INFO L82 PathProgramCache]: Analyzing trace with hash -517777560, now seen corresponding path program 1 times [2020-07-20 18:22:48,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:22:48,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1907125277] [2020-07-20 18:22:48,924 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:48,999 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 18:22:48,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:22:49,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 18:22:49,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:22:49,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 18:22:49,038 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:22:49,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1907125277] [2020-07-20 18:22:49,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:22:49,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 18:22:49,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486495529] [2020-07-20 18:22:49,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 18:22:49,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:22:49,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 18:22:49,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 18:22:49,041 INFO L87 Difference]: Start difference. First operand 613 states and 754 transitions. Second operand 6 states. [2020-07-20 18:22:49,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:22:49,125 INFO L93 Difference]: Finished difference Result 1226 states and 1540 transitions. [2020-07-20 18:22:49,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 18:22:49,126 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-07-20 18:22:49,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:22:49,130 INFO L225 Difference]: With dead ends: 1226 [2020-07-20 18:22:49,131 INFO L226 Difference]: Without dead ends: 633 [2020-07-20 18:22:49,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 18:22:49,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2020-07-20 18:22:49,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 623. [2020-07-20 18:22:49,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2020-07-20 18:22:49,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 756 transitions. [2020-07-20 18:22:49,175 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 756 transitions. Word has length 78 [2020-07-20 18:22:49,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:22:49,175 INFO L479 AbstractCegarLoop]: Abstraction has 623 states and 756 transitions. [2020-07-20 18:22:49,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 18:22:49,176 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 756 transitions. [2020-07-20 18:22:49,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 18:22:49,177 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:22:49,177 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] [2020-07-20 18:22:49,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:49,392 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:22:49,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:22:49,392 INFO L82 PathProgramCache]: Analyzing trace with hash -94130838, now seen corresponding path program 1 times [2020-07-20 18:22:49,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:22:49,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [687187757] [2020-07-20 18:22:49,393 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:49,467 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 18:22:49,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:22:49,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 18:22:49,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:22:49,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 18:22:49,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:22:49,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [687187757] [2020-07-20 18:22:49,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:22:49,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 18:22:49,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269469744] [2020-07-20 18:22:49,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 18:22:49,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:22:49,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 18:22:49,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 18:22:49,511 INFO L87 Difference]: Start difference. First operand 623 states and 756 transitions. Second operand 6 states. [2020-07-20 18:22:49,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:22:49,571 INFO L93 Difference]: Finished difference Result 1240 states and 1534 transitions. [2020-07-20 18:22:49,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 18:22:49,572 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-07-20 18:22:49,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:22:49,577 INFO L225 Difference]: With dead ends: 1240 [2020-07-20 18:22:49,577 INFO L226 Difference]: Without dead ends: 637 [2020-07-20 18:22:49,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 18:22:49,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2020-07-20 18:22:49,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 633. [2020-07-20 18:22:49,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2020-07-20 18:22:49,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 758 transitions. [2020-07-20 18:22:49,621 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 758 transitions. Word has length 78 [2020-07-20 18:22:49,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:22:49,622 INFO L479 AbstractCegarLoop]: Abstraction has 633 states and 758 transitions. [2020-07-20 18:22:49,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 18:22:49,622 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 758 transitions. [2020-07-20 18:22:49,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 18:22:49,623 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:22:49,624 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] [2020-07-20 18:22:49,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:49,838 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:22:49,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:22:49,838 INFO L82 PathProgramCache]: Analyzing trace with hash 180628776, now seen corresponding path program 1 times [2020-07-20 18:22:49,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:22:49,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761628612] [2020-07-20 18:22:49,839 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:49,914 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 18:22:49,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:22:49,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 18:22:49,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:22:49,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 18:22:49,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:22:49,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761628612] [2020-07-20 18:22:49,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:22:49,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 18:22:49,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879545534] [2020-07-20 18:22:49,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 18:22:49,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:22:49,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 18:22:49,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:22:49,947 INFO L87 Difference]: Start difference. First operand 633 states and 758 transitions. Second operand 3 states. [2020-07-20 18:22:50,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:22:50,024 INFO L93 Difference]: Finished difference Result 1802 states and 2202 transitions. [2020-07-20 18:22:50,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 18:22:50,025 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-07-20 18:22:50,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:22:50,033 INFO L225 Difference]: With dead ends: 1802 [2020-07-20 18:22:50,033 INFO L226 Difference]: Without dead ends: 1189 [2020-07-20 18:22:50,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:22:50,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2020-07-20 18:22:50,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 1185. [2020-07-20 18:22:50,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1185 states. [2020-07-20 18:22:50,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1398 transitions. [2020-07-20 18:22:50,132 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1398 transitions. Word has length 78 [2020-07-20 18:22:50,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:22:50,133 INFO L479 AbstractCegarLoop]: Abstraction has 1185 states and 1398 transitions. [2020-07-20 18:22:50,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 18:22:50,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1398 transitions. [2020-07-20 18:22:50,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-20 18:22:50,139 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:22:50,139 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:22:50,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:50,353 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:22:50,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:22:50,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1319133239, now seen corresponding path program 1 times [2020-07-20 18:22:50,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:22:50,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353319441] [2020-07-20 18:22:50,355 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:50,436 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 18:22:50,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:22:50,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 18:22:50,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:22:50,477 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-07-20 18:22:50,478 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:22:50,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353319441] [2020-07-20 18:22:50,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:22:50,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 18:22:50,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654461984] [2020-07-20 18:22:50,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 18:22:50,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:22:50,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 18:22:50,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:22:50,482 INFO L87 Difference]: Start difference. First operand 1185 states and 1398 transitions. Second operand 3 states. [2020-07-20 18:22:50,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:22:50,609 INFO L93 Difference]: Finished difference Result 2946 states and 3527 transitions. [2020-07-20 18:22:50,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 18:22:50,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2020-07-20 18:22:50,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:22:50,622 INFO L225 Difference]: With dead ends: 2946 [2020-07-20 18:22:50,622 INFO L226 Difference]: Without dead ends: 1364 [2020-07-20 18:22:50,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:22:50,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2020-07-20 18:22:50,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1364. [2020-07-20 18:22:50,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1364 states. [2020-07-20 18:22:50,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 1603 transitions. [2020-07-20 18:22:50,717 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 1603 transitions. Word has length 123 [2020-07-20 18:22:50,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:22:50,719 INFO L479 AbstractCegarLoop]: Abstraction has 1364 states and 1603 transitions. [2020-07-20 18:22:50,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 18:22:50,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 1603 transitions. [2020-07-20 18:22:50,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-07-20 18:22:50,726 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:22:50,726 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:22:50,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:50,941 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:22:50,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:22:50,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1249606409, now seen corresponding path program 1 times [2020-07-20 18:22:50,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:22:50,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [344860171] [2020-07-20 18:22:50,943 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:51,094 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 18:22:51,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:22:51,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 18:22:51,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:22:51,161 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-20 18:22:51,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:22:51,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [344860171] [2020-07-20 18:22:51,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:22:51,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 18:22:51,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288574158] [2020-07-20 18:22:51,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 18:22:51,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:22:51,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 18:22:51,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:22:51,165 INFO L87 Difference]: Start difference. First operand 1364 states and 1603 transitions. Second operand 3 states. [2020-07-20 18:22:51,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:22:51,282 INFO L93 Difference]: Finished difference Result 2701 states and 3220 transitions. [2020-07-20 18:22:51,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 18:22:51,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2020-07-20 18:22:51,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:22:51,294 INFO L225 Difference]: With dead ends: 2701 [2020-07-20 18:22:51,294 INFO L226 Difference]: Without dead ends: 1358 [2020-07-20 18:22:51,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:22:51,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1358 states. [2020-07-20 18:22:51,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1358 to 1358. [2020-07-20 18:22:51,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1358 states. [2020-07-20 18:22:51,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1579 transitions. [2020-07-20 18:22:51,385 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1579 transitions. Word has length 176 [2020-07-20 18:22:51,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:22:51,386 INFO L479 AbstractCegarLoop]: Abstraction has 1358 states and 1579 transitions. [2020-07-20 18:22:51,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 18:22:51,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1579 transitions. [2020-07-20 18:22:51,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-20 18:22:51,392 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:22:51,392 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:22:51,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:51,608 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:22:51,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:22:51,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1366701111, now seen corresponding path program 1 times [2020-07-20 18:22:51,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:22:51,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462744974] [2020-07-20 18:22:51,610 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:51,702 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 18:22:51,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:22:51,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 18:22:51,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:22:51,751 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-07-20 18:22:51,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:22:51,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1462744974] [2020-07-20 18:22:51,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:22:51,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 18:22:51,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419227039] [2020-07-20 18:22:51,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 18:22:51,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:22:51,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 18:22:51,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:22:51,754 INFO L87 Difference]: Start difference. First operand 1358 states and 1579 transitions. Second operand 3 states. [2020-07-20 18:22:51,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:22:51,918 INFO L93 Difference]: Finished difference Result 3153 states and 3700 transitions. [2020-07-20 18:22:51,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 18:22:51,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-07-20 18:22:51,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:22:51,928 INFO L225 Difference]: With dead ends: 3153 [2020-07-20 18:22:51,929 INFO L226 Difference]: Without dead ends: 911 [2020-07-20 18:22:51,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:22:51,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-07-20 18:22:52,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 911. [2020-07-20 18:22:52,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 911 states. [2020-07-20 18:22:52,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1038 transitions. [2020-07-20 18:22:52,029 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1038 transitions. Word has length 177 [2020-07-20 18:22:52,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:22:52,029 INFO L479 AbstractCegarLoop]: Abstraction has 911 states and 1038 transitions. [2020-07-20 18:22:52,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 18:22:52,030 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1038 transitions. [2020-07-20 18:22:52,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-20 18:22:52,033 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:22:52,033 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:22:52,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:52,248 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:22:52,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:22:52,248 INFO L82 PathProgramCache]: Analyzing trace with hash -816293866, now seen corresponding path program 1 times [2020-07-20 18:22:52,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:22:52,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718949277] [2020-07-20 18:22:52,249 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:52,373 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 18:22:52,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:22:52,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 18:22:52,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:22:52,410 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-20 18:22:52,411 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:22:52,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718949277] [2020-07-20 18:22:52,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:22:52,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 18:22:52,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615120790] [2020-07-20 18:22:52,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 18:22:52,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:22:52,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 18:22:52,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:22:52,413 INFO L87 Difference]: Start difference. First operand 911 states and 1038 transitions. Second operand 3 states. [2020-07-20 18:22:52,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:22:52,478 INFO L93 Difference]: Finished difference Result 1624 states and 1886 transitions. [2020-07-20 18:22:52,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 18:22:52,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-07-20 18:22:52,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:22:52,485 INFO L225 Difference]: With dead ends: 1624 [2020-07-20 18:22:52,485 INFO L226 Difference]: Without dead ends: 911 [2020-07-20 18:22:52,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:22:52,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-07-20 18:22:52,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 911. [2020-07-20 18:22:52,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 911 states. [2020-07-20 18:22:52,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1030 transitions. [2020-07-20 18:22:52,544 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1030 transitions. Word has length 177 [2020-07-20 18:22:52,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:22:52,545 INFO L479 AbstractCegarLoop]: Abstraction has 911 states and 1030 transitions. [2020-07-20 18:22:52,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 18:22:52,545 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1030 transitions. [2020-07-20 18:22:52,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-20 18:22:52,549 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:22:52,549 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:22:52,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:52,763 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:22:52,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:22:52,763 INFO L82 PathProgramCache]: Analyzing trace with hash 2053123678, now seen corresponding path program 1 times [2020-07-20 18:22:52,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:22:52,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537569663] [2020-07-20 18:22:52,765 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:52,973 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 18:22:52,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:22:52,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-20 18:22:52,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:22:53,059 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 53 proven. 23 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-20 18:22:53,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 18:22:53,297 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-20 18:22:53,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537569663] [2020-07-20 18:22:53,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 18:22:53,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2020-07-20 18:22:53,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573314908] [2020-07-20 18:22:53,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 18:22:53,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:22:53,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 18:22:53,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-20 18:22:53,300 INFO L87 Difference]: Start difference. First operand 911 states and 1030 transitions. Second operand 6 states. [2020-07-20 18:22:53,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:22:53,830 INFO L93 Difference]: Finished difference Result 937 states and 1063 transitions. [2020-07-20 18:22:53,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 18:22:53,831 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 178 [2020-07-20 18:22:53,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:22:53,839 INFO L225 Difference]: With dead ends: 937 [2020-07-20 18:22:53,839 INFO L226 Difference]: Without dead ends: 934 [2020-07-20 18:22:53,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-07-20 18:22:53,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2020-07-20 18:22:53,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 928. [2020-07-20 18:22:53,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 928 states. [2020-07-20 18:22:53,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1051 transitions. [2020-07-20 18:22:53,928 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1051 transitions. Word has length 178 [2020-07-20 18:22:53,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:22:53,929 INFO L479 AbstractCegarLoop]: Abstraction has 928 states and 1051 transitions. [2020-07-20 18:22:53,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 18:22:53,929 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1051 transitions. [2020-07-20 18:22:53,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-20 18:22:53,933 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:22:53,933 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:22:54,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:54,147 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:22:54,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:22:54,147 INFO L82 PathProgramCache]: Analyzing trace with hash 5197958, now seen corresponding path program 1 times [2020-07-20 18:22:54,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:22:54,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2009943664] [2020-07-20 18:22:54,148 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:54,276 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 18:22:54,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:22:54,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 18:22:54,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:22:54,319 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-07-20 18:22:54,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:22:54,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2009943664] [2020-07-20 18:22:54,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:22:54,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 18:22:54,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095361607] [2020-07-20 18:22:54,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 18:22:54,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:22:54,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 18:22:54,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:22:54,322 INFO L87 Difference]: Start difference. First operand 928 states and 1051 transitions. Second operand 3 states. [2020-07-20 18:22:54,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:22:54,379 INFO L93 Difference]: Finished difference Result 1501 states and 1713 transitions. [2020-07-20 18:22:54,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 18:22:54,380 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2020-07-20 18:22:54,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:22:54,386 INFO L225 Difference]: With dead ends: 1501 [2020-07-20 18:22:54,386 INFO L226 Difference]: Without dead ends: 942 [2020-07-20 18:22:54,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:22:54,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2020-07-20 18:22:54,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 942. [2020-07-20 18:22:54,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 942 states. [2020-07-20 18:22:54,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1067 transitions. [2020-07-20 18:22:54,454 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1067 transitions. Word has length 182 [2020-07-20 18:22:54,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:22:54,454 INFO L479 AbstractCegarLoop]: Abstraction has 942 states and 1067 transitions. [2020-07-20 18:22:54,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 18:22:54,455 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1067 transitions. [2020-07-20 18:22:54,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-07-20 18:22:54,458 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:22:54,458 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:22:54,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:54,673 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:22:54,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:22:54,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1390323253, now seen corresponding path program 1 times [2020-07-20 18:22:54,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:22:54,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1155043860] [2020-07-20 18:22:54,675 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:54,807 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 18:22:54,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 18:22:54,807 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 18:22:54,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 18:22:54,852 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 18:22:55,072 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 18:22:55,073 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 18:22:55,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:22:55,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 06:22:55 BoogieIcfgContainer [2020-07-20 18:22:55,482 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 18:22:55,486 INFO L168 Benchmark]: Toolchain (without parser) took 12397.79 ms. Allocated memory was 140.5 MB in the beginning and 364.4 MB in the end (delta: 223.9 MB). Free memory was 105.1 MB in the beginning and 98.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 230.4 MB. Max. memory is 7.1 GB. [2020-07-20 18:22:55,490 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 18:22:55,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 468.51 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 104.7 MB in the beginning and 183.8 MB in the end (delta: -79.2 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2020-07-20 18:22:55,497 INFO L168 Benchmark]: Boogie Preprocessor took 49.31 ms. Allocated memory is still 205.0 MB. Free memory was 183.8 MB in the beginning and 181.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-20 18:22:55,497 INFO L168 Benchmark]: RCFGBuilder took 553.46 ms. Allocated memory is still 205.0 MB. Free memory was 181.5 MB in the beginning and 148.8 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2020-07-20 18:22:55,498 INFO L168 Benchmark]: TraceAbstraction took 11316.17 ms. Allocated memory was 205.0 MB in the beginning and 364.4 MB in the end (delta: 159.4 MB). Free memory was 148.2 MB in the beginning and 98.5 MB in the end (delta: 49.6 MB). Peak memory consumption was 209.0 MB. Max. memory is 7.1 GB. [2020-07-20 18:22:55,503 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 468.51 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 104.7 MB in the beginning and 183.8 MB in the end (delta: -79.2 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.31 ms. Allocated memory is still 205.0 MB. Free memory was 183.8 MB in the beginning and 181.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 553.46 ms. Allocated memory is still 205.0 MB. Free memory was 181.5 MB in the beginning and 148.8 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11316.17 ms. Allocated memory was 205.0 MB in the beginning and 364.4 MB in the end (delta: 159.4 MB). Free memory was 148.2 MB in the beginning and 98.5 MB in the end (delta: 49.6 MB). Peak memory consumption was 209.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int m_pc = 0; [L15] int t1_pc = 0; [L16] int m_st ; [L17] int t1_st ; [L18] int m_i ; [L19] int t1_i ; [L20] int M_E = 2; [L21] int T1_E = 2; [L22] int E_M = 2; [L23] int E_1 = 2; [L27] int token ; [L29] int local ; VAL [\old(E_1)=8, \old(E_M)=9, \old(local)=13, \old(M_E)=14, \old(m_i)=15, \old(m_pc)=10, \old(m_st)=4, \old(T1_E)=12, \old(t1_i)=6, \old(t1_pc)=3, \old(t1_st)=7, \old(token)=11, E_1=2, E_M=2, local=0, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, token=0] [L475] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, token=0] [L479] CALL init_model() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, token=0] [L390] m_i = 1 [L391] t1_i = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L479] RET init_model() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L480] CALL start_simulation() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L416] int kernel_st ; [L417] int tmp ; [L418] int tmp___0 ; [L422] kernel_st = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L423] FCALL update_channels() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L424] CALL init_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L172] COND TRUE m_i == 1 [L173] m_st = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L177] COND TRUE t1_i == 1 [L178] t1_st = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L424] RET init_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L425] CALL fire_delta_events() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L261] COND FALSE !(M_E == 0) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L266] COND FALSE !(T1_E == 0) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L271] COND FALSE !(E_M == 0) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L276] COND FALSE !(E_1 == 0) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L425] RET fire_delta_events() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L426] CALL activate_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L314] int tmp ; [L315] int tmp___0 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L319] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L123] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L126] COND FALSE !(m_pc == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L136] __retres1 = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, __retres1=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L138] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, \result=0, __retres1=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L319] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, is_master_triggered()=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L319] tmp = is_master_triggered() [L321] COND FALSE !(\read(tmp)) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=0, token=0] [L327] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L142] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L145] COND FALSE !(t1_pc == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L155] __retres1 = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, __retres1=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L157] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, \result=0, __retres1=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L327] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, is_transmit1_triggered()=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=0, token=0] [L327] tmp___0 = is_transmit1_triggered() [L329] COND FALSE !(\read(tmp___0)) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=0, tmp___0=0, token=0] [L426] RET activate_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L427] CALL reset_delta_events() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L289] COND FALSE !(M_E == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L294] COND FALSE !(T1_E == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L299] COND FALSE !(E_M == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L304] COND FALSE !(E_1 == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L427] RET reset_delta_events() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L430] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L433] kernel_st = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=1, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L434] CALL eval() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L208] int tmp ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L212] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L215] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L187] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L190] COND TRUE m_st == 0 [L191] __retres1 = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, __retres1=1, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L203] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, \result=1, __retres1=1, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L215] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, exists_runnable_thread()=1, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L215] tmp = exists_runnable_thread() [L217] COND TRUE \read(tmp) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=1, token=0] [L222] COND TRUE m_st == 0 [L223] int tmp_ndt_1; [L224] tmp_ndt_1 = __VERIFIER_nondet_int() [L225] COND FALSE !(\read(tmp_ndt_1)) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=1, tmp_ndt_1=0, token=0] [L236] COND TRUE t1_st == 0 [L237] int tmp_ndt_2; [L238] tmp_ndt_2 = __VERIFIER_nondet_int() [L239] COND TRUE \read(tmp_ndt_2) [L241] t1_st = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, token=0] [L242] CALL transmit1() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, token=0] [L90] COND TRUE t1_pc == 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, token=0] [L101] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, token=0] [L103] t1_pc = 1 [L104] t1_st = 2 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L242] RET transmit1() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, token=0] [L212] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, token=0] [L215] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L187] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L190] COND TRUE m_st == 0 [L191] __retres1 = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, __retres1=1, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L203] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, \result=1, __retres1=1, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L215] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, exists_runnable_thread()=1, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, token=0] [L215] tmp = exists_runnable_thread() [L217] COND TRUE \read(tmp) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, token=0] [L222] COND TRUE m_st == 0 [L223] int tmp_ndt_1; [L224] tmp_ndt_1 = __VERIFIER_nondet_int() [L225] COND TRUE \read(tmp_ndt_1) [L227] m_st = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=-1, token=0] [L228] CALL master() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L32] int tmp_var = __VERIFIER_nondet_int(); [L34] COND TRUE m_pc == 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=0, token=0] [L45] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=0, token=0] [L48] token = __VERIFIER_nondet_int() [L49] local = token [L50] E_1 = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=0, token=-1] [L51] CALL immediate_notify() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L343] CALL activate_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L314] int tmp ; [L315] int tmp___0 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L319] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L123] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L126] COND FALSE !(m_pc == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L136] __retres1 = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, __retres1=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L138] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, \result=0, __retres1=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L319] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, is_master_triggered()=0, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L319] tmp = is_master_triggered() [L321] COND FALSE !(\read(tmp)) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=0, token=-1] [L327] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L142] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L145] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L146] COND TRUE E_1 == 1 [L147] __retres1 = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, __retres1=1, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L157] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, \result=1, __retres1=1, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L327] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, is_transmit1_triggered()=1, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=0, token=-1] [L327] tmp___0 = is_transmit1_triggered() [L329] COND TRUE \read(tmp___0) [L330] t1_st = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, tmp=0, tmp___0=1, token=-1] [L343] RET activate_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, token=-1] [L51] RET immediate_notify() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, tmp_var=0, token=-1] [L52] E_1 = 2 [L53] m_pc = 1 [L54] m_st = 2 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, tmp_var=0, token=-1] [L228] RET master() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=-1, token=-1] [L236] COND TRUE t1_st == 0 [L237] int tmp_ndt_2; [L238] tmp_ndt_2 = __VERIFIER_nondet_int() [L239] COND TRUE \read(tmp_ndt_2) [L241] t1_st = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=1, token=-1] [L242] CALL transmit1() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=-1] [L90] COND FALSE !(t1_pc == 0) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=-1] [L93] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=-1] [L109] token += 1 [L110] E_M = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L111] CALL immediate_notify() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L343] CALL activate_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L314] int tmp ; [L315] int tmp___0 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L319] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L123] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L126] COND TRUE m_pc == 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L127] COND TRUE E_M == 1 [L128] __retres1 = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, __retres1=1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L138] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, \result=1, __retres1=1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L319] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, is_master_triggered()=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L319] tmp = is_master_triggered() [L321] COND TRUE \read(tmp) [L322] m_st = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, tmp=1, token=0] [L327] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L142] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L145] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L146] COND FALSE !(E_1 == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L155] __retres1 = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, __retres1=0, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L157] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, \result=0, __retres1=0, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L327] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, is_transmit1_triggered()=0, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, tmp=1, token=0] [L327] tmp___0 = is_transmit1_triggered() [L329] COND FALSE !(\read(tmp___0)) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, tmp=1, tmp___0=0, token=0] [L343] RET activate_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L111] RET immediate_notify() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L112] E_M = 2 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L101] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L103] t1_pc = 1 [L104] t1_st = 2 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L242] RET transmit1() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=1, token=0] [L212] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=1, token=0] [L215] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L187] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L190] COND TRUE m_st == 0 [L191] __retres1 = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, __retres1=1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L203] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, \result=1, __retres1=1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L215] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, exists_runnable_thread()=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=1, token=0] [L215] tmp = exists_runnable_thread() [L217] COND TRUE \read(tmp) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=1, token=0] [L222] COND TRUE m_st == 0 [L223] int tmp_ndt_1; [L224] tmp_ndt_1 = __VERIFIER_nondet_int() [L225] COND TRUE \read(tmp_ndt_1) [L227] m_st = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=1, tmp_ndt_2=1, token=0] [L228] CALL master() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L32] int tmp_var = __VERIFIER_nondet_int(); [L34] COND FALSE !(m_pc == 0) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L37] COND TRUE m_pc == 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L59] COND FALSE !(token != local + 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L64] COND TRUE tmp_var <= 5 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L65] COND TRUE tmp_var >= 5 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L70] COND TRUE tmp_var <= 5 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L71] COND TRUE tmp_var >= 5 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L72] COND TRUE tmp_var == 5 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L73] CALL error() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L10] __VERIFIER_error() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 151 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.0s, OverallIterations: 15, TraceHistogramMax: 3, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2958 SDtfs, 2383 SDslu, 2921 SDs, 0 SdLazy, 1379 SolverSat, 561 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1811 GetRequests, 1768 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1364occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 235 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1820 NumberOfCodeBlocks, 1406 NumberOfCodeBlocksAsserted, 45 NumberOfCheckSat, 1800 ConstructedInterpolants, 0 QuantifiedInterpolants, 356313 SizeOfPredicates, 22 NumberOfNonLiveVariables, 5735 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 15 InterpolantComputations, 14 PerfectInterpolantSequences, 649/672 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...