/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 DAGSIZE --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 22:58:05,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 22:58:05,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 22:58:05,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 22:58:05,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 22:58:05,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 22:58:05,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 22:58:05,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 22:58:05,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 22:58:05,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 22:58:05,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 22:58:05,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 22:58:05,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 22:58:05,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 22:58:05,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 22:58:05,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 22:58:05,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 22:58:05,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 22:58:05,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 22:58:05,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 22:58:05,668 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 22:58:05,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 22:58:05,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 22:58:05,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 22:58:05,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 22:58:05,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 22:58:05,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 22:58:05,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 22:58:05,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 22:58:05,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-07-20 22:58:05,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 22:58:05,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 22:58:05,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 22:58:05,685 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 22:58:05,710 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 22:58:05,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 22:58:05,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 22:58:05,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 22:58:05,713 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 22:58:05,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 22:58:05,714 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 22:58:05,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 22:58:05,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 22:58:05,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 22:58:05,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 22:58:05,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 22:58:05,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 22:58:05,716 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 22:58:05,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 22:58:05,717 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 22:58:05,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 22:58:05,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 22:58:05,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 22:58:05,718 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 22:58:05,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 22:58:05,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:58:05,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 22:58:05,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 22:58:05,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 22:58:05,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 22:58:05,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:58:05,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 22:58:05,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 22:58:05,720 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 -> DAGSIZE 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 22:58:06,009 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 22:58:06,024 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 22:58:06,028 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 22:58:06,029 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 22:58:06,030 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 22:58:06,031 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.01.cil-2.c [2020-07-20 22:58:06,103 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a98d9284/b40b023f9a494e399c3903cb16b7e20d/FLAGc80af6432 [2020-07-20 22:58:06,625 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 22:58:06,625 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.01.cil-2.c [2020-07-20 22:58:06,647 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a98d9284/b40b023f9a494e399c3903cb16b7e20d/FLAGc80af6432 [2020-07-20 22:58:06,998 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a98d9284/b40b023f9a494e399c3903cb16b7e20d [2020-07-20 22:58:07,007 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 22:58:07,009 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 22:58:07,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 22:58:07,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 22:58:07,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 22:58:07,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:58:06" (1/1) ... [2020-07-20 22:58:07,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17a9fd3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:58:07, skipping insertion in model container [2020-07-20 22:58:07,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:58:06" (1/1) ... [2020-07-20 22:58:07,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 22:58:07,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 22:58:07,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:58:07,323 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 22:58:07,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:58:07,473 INFO L208 MainTranslator]: Completed translation [2020-07-20 22:58:07,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:58:07 WrapperNode [2020-07-20 22:58:07,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 22:58:07,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 22:58:07,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 22:58:07,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 22:58:07,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:58:07" (1/1) ... [2020-07-20 22:58:07,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:58:07" (1/1) ... [2020-07-20 22:58:07,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:58:07" (1/1) ... [2020-07-20 22:58:07,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:58:07" (1/1) ... [2020-07-20 22:58:07,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:58:07" (1/1) ... [2020-07-20 22:58:07,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:58:07" (1/1) ... [2020-07-20 22:58:07,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:58:07" (1/1) ... [2020-07-20 22:58:07,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 22:58:07,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 22:58:07,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 22:58:07,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 22:58:07,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:58:07" (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 22:58:07,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 22:58:07,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 22:58:07,601 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-07-20 22:58:07,601 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-07-20 22:58:07,602 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-07-20 22:58:07,602 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-07-20 22:58:07,602 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-07-20 22:58:07,602 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-07-20 22:58:07,602 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-07-20 22:58:07,602 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-07-20 22:58:07,603 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-07-20 22:58:07,603 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-07-20 22:58:07,603 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-07-20 22:58:07,603 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-07-20 22:58:07,603 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-07-20 22:58:07,603 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-07-20 22:58:07,604 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-07-20 22:58:07,604 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-07-20 22:58:07,604 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-07-20 22:58:07,604 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-07-20 22:58:07,604 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 22:58:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 22:58:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-07-20 22:58:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-07-20 22:58:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-07-20 22:58:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-07-20 22:58:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 22:58:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-07-20 22:58:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-07-20 22:58:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-07-20 22:58:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-07-20 22:58:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-07-20 22:58:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-07-20 22:58:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-07-20 22:58:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-07-20 22:58:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-07-20 22:58:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-07-20 22:58:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-07-20 22:58:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-07-20 22:58:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-07-20 22:58:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-07-20 22:58:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 22:58:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 22:58:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 22:58:08,138 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 22:58:08,139 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-20 22:58:08,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:58:08 BoogieIcfgContainer [2020-07-20 22:58:08,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 22:58:08,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 22:58:08,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 22:58:08,149 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 22:58:08,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:58:06" (1/3) ... [2020-07-20 22:58:08,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ae9340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:58:08, skipping insertion in model container [2020-07-20 22:58:08,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:58:07" (2/3) ... [2020-07-20 22:58:08,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ae9340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:58:08, skipping insertion in model container [2020-07-20 22:58:08,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:58:08" (3/3) ... [2020-07-20 22:58:08,152 INFO L109 eAbstractionObserver]: Analyzing ICFG token_ring.01.cil-2.c [2020-07-20 22:58:08,161 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 22:58:08,172 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 22:58:08,185 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 22:58:08,216 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 22:58:08,217 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 22:58:08,217 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 22:58:08,217 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 22:58:08,217 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 22:58:08,217 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 22:58:08,218 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 22:58:08,218 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 22:58:08,242 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2020-07-20 22:58:08,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 22:58:08,253 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:58:08,254 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 22:58:08,254 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:58:08,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:58:08,260 INFO L82 PathProgramCache]: Analyzing trace with hash -540085109, now seen corresponding path program 1 times [2020-07-20 22:58:08,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:58:08,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1618229897] [2020-07-20 22:58:08,268 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 22:58:08,460 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 22:58:08,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:58:08,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 22:58:08,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:58:08,606 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 22:58:08,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:58:08,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1618229897] [2020-07-20 22:58:08,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:58:08,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 22:58:08,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425001031] [2020-07-20 22:58:08,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:58:08,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:58:08,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:58:08,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:58:08,633 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 6 states. [2020-07-20 22:58:08,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:58:08,754 INFO L93 Difference]: Finished difference Result 290 states and 415 transitions. [2020-07-20 22:58:08,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 22:58:08,757 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-07-20 22:58:08,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:58:08,772 INFO L225 Difference]: With dead ends: 290 [2020-07-20 22:58:08,773 INFO L226 Difference]: Without dead ends: 152 [2020-07-20 22:58:08,778 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 22:58:08,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-07-20 22:58:08,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 147. [2020-07-20 22:58:08,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-07-20 22:58:08,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 194 transitions. [2020-07-20 22:58:08,848 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 194 transitions. Word has length 78 [2020-07-20 22:58:08,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:58:08,849 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 194 transitions. [2020-07-20 22:58:08,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:58:08,849 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 194 transitions. [2020-07-20 22:58:08,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 22:58:08,854 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:58:08,854 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 22:58:09,069 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:58:09,070 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:58:09,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:58:09,071 INFO L82 PathProgramCache]: Analyzing trace with hash -116438387, now seen corresponding path program 1 times [2020-07-20 22:58:09,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:58:09,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1581232816] [2020-07-20 22:58:09,073 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 22:58:09,213 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 22:58:09,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:58:09,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:58:09,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:58:09,273 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 22:58:09,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:58:09,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1581232816] [2020-07-20 22:58:09,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:58:09,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:58:09,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176961583] [2020-07-20 22:58:09,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:58:09,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:58:09,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:58:09,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:58:09,278 INFO L87 Difference]: Start difference. First operand 147 states and 194 transitions. Second operand 3 states. [2020-07-20 22:58:09,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:58:09,330 INFO L93 Difference]: Finished difference Result 394 states and 533 transitions. [2020-07-20 22:58:09,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:58:09,330 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-07-20 22:58:09,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:58:09,335 INFO L225 Difference]: With dead ends: 394 [2020-07-20 22:58:09,335 INFO L226 Difference]: Without dead ends: 267 [2020-07-20 22:58:09,338 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 22:58:09,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-07-20 22:58:09,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 261. [2020-07-20 22:58:09,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-07-20 22:58:09,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 348 transitions. [2020-07-20 22:58:09,373 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 348 transitions. Word has length 78 [2020-07-20 22:58:09,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:58:09,373 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 348 transitions. [2020-07-20 22:58:09,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:58:09,373 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 348 transitions. [2020-07-20 22:58:09,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 22:58:09,376 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:58:09,377 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 22:58:09,589 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:58:09,590 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:58:09,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:58:09,591 INFO L82 PathProgramCache]: Analyzing trace with hash 406882284, now seen corresponding path program 1 times [2020-07-20 22:58:09,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:58:09,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579913442] [2020-07-20 22:58:09,593 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 22:58:09,670 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 22:58:09,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:58:09,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 22:58:09,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:58:09,730 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 22:58:09,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:58:09,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579913442] [2020-07-20 22:58:09,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:58:09,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 22:58:09,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243999642] [2020-07-20 22:58:09,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:58:09,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:58:09,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:58:09,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:58:09,735 INFO L87 Difference]: Start difference. First operand 261 states and 348 transitions. Second operand 6 states. [2020-07-20 22:58:09,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:58:09,800 INFO L93 Difference]: Finished difference Result 509 states and 697 transitions. [2020-07-20 22:58:09,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 22:58:09,800 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-07-20 22:58:09,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:58:09,804 INFO L225 Difference]: With dead ends: 509 [2020-07-20 22:58:09,805 INFO L226 Difference]: Without dead ends: 268 [2020-07-20 22:58:09,808 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 22:58:09,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-07-20 22:58:09,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 266. [2020-07-20 22:58:09,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-07-20 22:58:09,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 352 transitions. [2020-07-20 22:58:09,839 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 352 transitions. Word has length 78 [2020-07-20 22:58:09,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:58:09,839 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 352 transitions. [2020-07-20 22:58:09,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:58:09,840 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 352 transitions. [2020-07-20 22:58:09,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 22:58:09,843 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:58:09,843 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 22:58:10,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:58:10,056 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:58:10,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:58:10,057 INFO L82 PathProgramCache]: Analyzing trace with hash 681641898, now seen corresponding path program 1 times [2020-07-20 22:58:10,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:58:10,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067723611] [2020-07-20 22:58:10,058 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 22:58:10,157 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 22:58:10,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:58:10,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 22:58:10,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:58:10,220 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 22:58:10,221 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:58:10,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067723611] [2020-07-20 22:58:10,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:58:10,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:58:10,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884789320] [2020-07-20 22:58:10,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:58:10,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:58:10,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:58:10,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:58:10,228 INFO L87 Difference]: Start difference. First operand 266 states and 352 transitions. Second operand 5 states. [2020-07-20 22:58:10,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:58:10,747 INFO L93 Difference]: Finished difference Result 631 states and 875 transitions. [2020-07-20 22:58:10,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 22:58:10,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-07-20 22:58:10,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:58:10,758 INFO L225 Difference]: With dead ends: 631 [2020-07-20 22:58:10,758 INFO L226 Difference]: Without dead ends: 384 [2020-07-20 22:58:10,762 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 22:58:10,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2020-07-20 22:58:10,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 324. [2020-07-20 22:58:10,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-07-20 22:58:10,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 409 transitions. [2020-07-20 22:58:10,832 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 409 transitions. Word has length 78 [2020-07-20 22:58:10,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:58:10,833 INFO L479 AbstractCegarLoop]: Abstraction has 324 states and 409 transitions. [2020-07-20 22:58:10,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:58:10,835 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 409 transitions. [2020-07-20 22:58:10,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 22:58:10,839 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:58:10,841 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 22:58:11,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:58:11,044 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:58:11,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:58:11,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1698209514, now seen corresponding path program 1 times [2020-07-20 22:58:11,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:58:11,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [446736444] [2020-07-20 22:58:11,046 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 22:58:11,129 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 22:58:11,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:58:11,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 22:58:11,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:58:11,159 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 22:58:11,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:58:11,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [446736444] [2020-07-20 22:58:11,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:58:11,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:58:11,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142998868] [2020-07-20 22:58:11,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:58:11,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:58:11,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:58:11,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:58:11,162 INFO L87 Difference]: Start difference. First operand 324 states and 409 transitions. Second operand 5 states. [2020-07-20 22:58:11,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:58:11,788 INFO L93 Difference]: Finished difference Result 964 states and 1242 transitions. [2020-07-20 22:58:11,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 22:58:11,789 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-07-20 22:58:11,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:58:11,794 INFO L225 Difference]: With dead ends: 964 [2020-07-20 22:58:11,794 INFO L226 Difference]: Without dead ends: 659 [2020-07-20 22:58:11,796 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 22:58:11,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2020-07-20 22:58:11,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 609. [2020-07-20 22:58:11,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-07-20 22:58:11,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 768 transitions. [2020-07-20 22:58:11,839 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 768 transitions. Word has length 78 [2020-07-20 22:58:11,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:58:11,840 INFO L479 AbstractCegarLoop]: Abstraction has 609 states and 768 transitions. [2020-07-20 22:58:11,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:58:11,840 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 768 transitions. [2020-07-20 22:58:11,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 22:58:11,842 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:58:11,842 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 22:58:12,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:58:12,056 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:58:12,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:58:12,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1845313622, now seen corresponding path program 1 times [2020-07-20 22:58:12,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:58:12,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42274639] [2020-07-20 22:58:12,059 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 22:58:12,138 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 22:58:12,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:58:12,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 22:58:12,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:58:12,171 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 22:58:12,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:58:12,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42274639] [2020-07-20 22:58:12,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:58:12,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:58:12,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664774862] [2020-07-20 22:58:12,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:58:12,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:58:12,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:58:12,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:58:12,173 INFO L87 Difference]: Start difference. First operand 609 states and 768 transitions. Second operand 5 states. [2020-07-20 22:58:12,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:58:12,582 INFO L93 Difference]: Finished difference Result 1199 states and 1529 transitions. [2020-07-20 22:58:12,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 22:58:12,583 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-07-20 22:58:12,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:58:12,589 INFO L225 Difference]: With dead ends: 1199 [2020-07-20 22:58:12,589 INFO L226 Difference]: Without dead ends: 609 [2020-07-20 22:58:12,597 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 22:58:12,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2020-07-20 22:58:12,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 609. [2020-07-20 22:58:12,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-07-20 22:58:12,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 756 transitions. [2020-07-20 22:58:12,638 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 756 transitions. Word has length 78 [2020-07-20 22:58:12,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:58:12,639 INFO L479 AbstractCegarLoop]: Abstraction has 609 states and 756 transitions. [2020-07-20 22:58:12,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:58:12,639 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 756 transitions. [2020-07-20 22:58:12,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 22:58:12,640 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:58:12,641 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 22:58:12,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:58:12,855 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:58:12,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:58:12,856 INFO L82 PathProgramCache]: Analyzing trace with hash 118589162, now seen corresponding path program 1 times [2020-07-20 22:58:12,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:58:12,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [485040514] [2020-07-20 22:58:12,857 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 22:58:12,946 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:58:12,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:58:12,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 22:58:12,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:58:12,987 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 22:58:12,987 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:58:12,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [485040514] [2020-07-20 22:58:12,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:58:12,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:58:12,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184839534] [2020-07-20 22:58:12,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:58:12,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:58:12,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:58:12,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:58:12,990 INFO L87 Difference]: Start difference. First operand 609 states and 756 transitions. Second operand 5 states. [2020-07-20 22:58:13,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:58:13,484 INFO L93 Difference]: Finished difference Result 1308 states and 1704 transitions. [2020-07-20 22:58:13,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 22:58:13,485 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-07-20 22:58:13,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:58:13,492 INFO L225 Difference]: With dead ends: 1308 [2020-07-20 22:58:13,492 INFO L226 Difference]: Without dead ends: 718 [2020-07-20 22:58:13,496 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 22:58:13,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2020-07-20 22:58:13,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 633. [2020-07-20 22:58:13,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2020-07-20 22:58:13,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 758 transitions. [2020-07-20 22:58:13,573 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 758 transitions. Word has length 78 [2020-07-20 22:58:13,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:58:13,576 INFO L479 AbstractCegarLoop]: Abstraction has 633 states and 758 transitions. [2020-07-20 22:58:13,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:58:13,576 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 758 transitions. [2020-07-20 22:58:13,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 22:58:13,578 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:58:13,578 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 22:58:13,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:58:13,792 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:58:13,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:58:13,793 INFO L82 PathProgramCache]: Analyzing trace with hash 180628776, now seen corresponding path program 1 times [2020-07-20 22:58:13,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:58:13,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264021087] [2020-07-20 22:58:13,793 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 22:58:13,889 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:58:13,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:58:13,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 22:58:13,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:58:13,918 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 22:58:13,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:58:13,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264021087] [2020-07-20 22:58:13,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:58:13,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:58:13,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786033031] [2020-07-20 22:58:13,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:58:13,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:58:13,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:58:13,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:58:13,920 INFO L87 Difference]: Start difference. First operand 633 states and 758 transitions. Second operand 3 states. [2020-07-20 22:58:13,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:58:13,997 INFO L93 Difference]: Finished difference Result 1802 states and 2202 transitions. [2020-07-20 22:58:13,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:58:13,997 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-07-20 22:58:13,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:58:14,005 INFO L225 Difference]: With dead ends: 1802 [2020-07-20 22:58:14,005 INFO L226 Difference]: Without dead ends: 1189 [2020-07-20 22:58:14,008 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 22:58:14,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2020-07-20 22:58:14,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 1185. [2020-07-20 22:58:14,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1185 states. [2020-07-20 22:58:14,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1398 transitions. [2020-07-20 22:58:14,083 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1398 transitions. Word has length 78 [2020-07-20 22:58:14,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:58:14,083 INFO L479 AbstractCegarLoop]: Abstraction has 1185 states and 1398 transitions. [2020-07-20 22:58:14,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:58:14,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1398 transitions. [2020-07-20 22:58:14,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-20 22:58:14,086 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:58:14,086 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 22:58:14,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:58:14,302 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:58:14,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:58:14,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1319133239, now seen corresponding path program 1 times [2020-07-20 22:58:14,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:58:14,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [756372044] [2020-07-20 22:58:14,305 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 22:58:14,350 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 22:58:14,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:58:14,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 22:58:14,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:58:14,369 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 22:58:14,370 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:58:14,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [756372044] [2020-07-20 22:58:14,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:58:14,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:58:14,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830809466] [2020-07-20 22:58:14,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:58:14,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:58:14,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:58:14,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:58:14,372 INFO L87 Difference]: Start difference. First operand 1185 states and 1398 transitions. Second operand 3 states. [2020-07-20 22:58:14,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:58:14,481 INFO L93 Difference]: Finished difference Result 2946 states and 3527 transitions. [2020-07-20 22:58:14,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:58:14,482 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2020-07-20 22:58:14,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:58:14,493 INFO L225 Difference]: With dead ends: 2946 [2020-07-20 22:58:14,493 INFO L226 Difference]: Without dead ends: 1364 [2020-07-20 22:58:14,500 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 22:58:14,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2020-07-20 22:58:14,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1364. [2020-07-20 22:58:14,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1364 states. [2020-07-20 22:58:14,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 1603 transitions. [2020-07-20 22:58:14,625 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 1603 transitions. Word has length 123 [2020-07-20 22:58:14,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:58:14,626 INFO L479 AbstractCegarLoop]: Abstraction has 1364 states and 1603 transitions. [2020-07-20 22:58:14,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:58:14,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 1603 transitions. [2020-07-20 22:58:14,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-07-20 22:58:14,630 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:58:14,631 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 22:58:14,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:58:14,844 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:58:14,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:58:14,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1249606409, now seen corresponding path program 1 times [2020-07-20 22:58:14,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:58:14,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1232420699] [2020-07-20 22:58:14,845 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 22:58:14,925 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 22:58:14,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:58:14,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 22:58:14,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:58:14,956 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 22:58:14,956 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:58:14,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1232420699] [2020-07-20 22:58:14,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:58:14,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:58:14,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295627284] [2020-07-20 22:58:14,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:58:14,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:58:14,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:58:14,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:58:14,958 INFO L87 Difference]: Start difference. First operand 1364 states and 1603 transitions. Second operand 3 states. [2020-07-20 22:58:15,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:58:15,039 INFO L93 Difference]: Finished difference Result 2701 states and 3220 transitions. [2020-07-20 22:58:15,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:58:15,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2020-07-20 22:58:15,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:58:15,048 INFO L225 Difference]: With dead ends: 2701 [2020-07-20 22:58:15,048 INFO L226 Difference]: Without dead ends: 1358 [2020-07-20 22:58:15,053 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 22:58:15,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1358 states. [2020-07-20 22:58:15,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1358 to 1358. [2020-07-20 22:58:15,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1358 states. [2020-07-20 22:58:15,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1579 transitions. [2020-07-20 22:58:15,131 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1579 transitions. Word has length 176 [2020-07-20 22:58:15,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:58:15,131 INFO L479 AbstractCegarLoop]: Abstraction has 1358 states and 1579 transitions. [2020-07-20 22:58:15,131 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:58:15,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1579 transitions. [2020-07-20 22:58:15,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-20 22:58:15,135 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:58:15,135 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 22:58:15,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:58:15,349 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:58:15,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:58:15,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1366701111, now seen corresponding path program 1 times [2020-07-20 22:58:15,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:58:15,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1203945165] [2020-07-20 22:58:15,351 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 22:58:15,407 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 22:58:15,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:58:15,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 22:58:15,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:58:15,443 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 22:58:15,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:58:15,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1203945165] [2020-07-20 22:58:15,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:58:15,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:58:15,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44377718] [2020-07-20 22:58:15,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:58:15,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:58:15,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:58:15,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:58:15,446 INFO L87 Difference]: Start difference. First operand 1358 states and 1579 transitions. Second operand 3 states. [2020-07-20 22:58:15,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:58:15,568 INFO L93 Difference]: Finished difference Result 3153 states and 3700 transitions. [2020-07-20 22:58:15,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:58:15,569 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-07-20 22:58:15,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:58:15,575 INFO L225 Difference]: With dead ends: 3153 [2020-07-20 22:58:15,575 INFO L226 Difference]: Without dead ends: 911 [2020-07-20 22:58:15,582 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 22:58:15,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-07-20 22:58:15,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 911. [2020-07-20 22:58:15,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 911 states. [2020-07-20 22:58:15,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1038 transitions. [2020-07-20 22:58:15,644 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1038 transitions. Word has length 177 [2020-07-20 22:58:15,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:58:15,644 INFO L479 AbstractCegarLoop]: Abstraction has 911 states and 1038 transitions. [2020-07-20 22:58:15,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:58:15,645 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1038 transitions. [2020-07-20 22:58:15,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-20 22:58:15,650 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:58:15,650 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 22:58:15,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:58:15,865 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:58:15,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:58:15,865 INFO L82 PathProgramCache]: Analyzing trace with hash -816293866, now seen corresponding path program 1 times [2020-07-20 22:58:15,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:58:15,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648047882] [2020-07-20 22:58:15,866 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 22:58:15,941 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 22:58:15,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:58:15,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 22:58:15,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:58:15,972 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 22:58:15,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:58:15,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1648047882] [2020-07-20 22:58:15,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:58:15,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:58:15,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722581608] [2020-07-20 22:58:15,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:58:15,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:58:15,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:58:15,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:58:15,975 INFO L87 Difference]: Start difference. First operand 911 states and 1038 transitions. Second operand 3 states. [2020-07-20 22:58:16,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:58:16,032 INFO L93 Difference]: Finished difference Result 1624 states and 1886 transitions. [2020-07-20 22:58:16,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:58:16,032 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-07-20 22:58:16,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:58:16,039 INFO L225 Difference]: With dead ends: 1624 [2020-07-20 22:58:16,040 INFO L226 Difference]: Without dead ends: 911 [2020-07-20 22:58:16,044 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 22:58:16,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-07-20 22:58:16,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 911. [2020-07-20 22:58:16,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 911 states. [2020-07-20 22:58:16,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1030 transitions. [2020-07-20 22:58:16,110 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1030 transitions. Word has length 177 [2020-07-20 22:58:16,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:58:16,111 INFO L479 AbstractCegarLoop]: Abstraction has 911 states and 1030 transitions. [2020-07-20 22:58:16,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:58:16,111 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1030 transitions. [2020-07-20 22:58:16,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-20 22:58:16,115 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:58:16,116 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 22:58:16,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:58:16,329 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:58:16,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:58:16,329 INFO L82 PathProgramCache]: Analyzing trace with hash 2053123678, now seen corresponding path program 1 times [2020-07-20 22:58:16,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:58:16,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [940213832] [2020-07-20 22:58:16,330 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 22:58:16,453 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:58:16,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:58:16,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-20 22:58:16,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:58:16,557 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 22:58:16,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:58:16,815 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 22:58:16,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [940213832] [2020-07-20 22:58:16,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 22:58:16,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2020-07-20 22:58:16,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225365168] [2020-07-20 22:58:16,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:58:16,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:58:16,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:58:16,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-20 22:58:16,819 INFO L87 Difference]: Start difference. First operand 911 states and 1030 transitions. Second operand 6 states. [2020-07-20 22:58:17,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:58:17,244 INFO L93 Difference]: Finished difference Result 937 states and 1063 transitions. [2020-07-20 22:58:17,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 22:58:17,245 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 178 [2020-07-20 22:58:17,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:58:17,253 INFO L225 Difference]: With dead ends: 937 [2020-07-20 22:58:17,253 INFO L226 Difference]: Without dead ends: 934 [2020-07-20 22:58:17,254 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 22:58:17,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2020-07-20 22:58:17,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 928. [2020-07-20 22:58:17,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 928 states. [2020-07-20 22:58:17,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1051 transitions. [2020-07-20 22:58:17,318 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1051 transitions. Word has length 178 [2020-07-20 22:58:17,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:58:17,319 INFO L479 AbstractCegarLoop]: Abstraction has 928 states and 1051 transitions. [2020-07-20 22:58:17,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:58:17,319 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1051 transitions. [2020-07-20 22:58:17,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-20 22:58:17,322 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:58:17,323 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 22:58:17,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:58:17,538 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:58:17,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:58:17,538 INFO L82 PathProgramCache]: Analyzing trace with hash 5197958, now seen corresponding path program 1 times [2020-07-20 22:58:17,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:58:17,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375241367] [2020-07-20 22:58:17,539 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 22:58:17,660 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 22:58:17,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:58:17,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 22:58:17,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:58:17,692 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 22:58:17,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:58:17,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375241367] [2020-07-20 22:58:17,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:58:17,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:58:17,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603160603] [2020-07-20 22:58:17,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:58:17,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:58:17,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:58:17,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:58:17,694 INFO L87 Difference]: Start difference. First operand 928 states and 1051 transitions. Second operand 3 states. [2020-07-20 22:58:17,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:58:17,752 INFO L93 Difference]: Finished difference Result 1501 states and 1713 transitions. [2020-07-20 22:58:17,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:58:17,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2020-07-20 22:58:17,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:58:17,758 INFO L225 Difference]: With dead ends: 1501 [2020-07-20 22:58:17,758 INFO L226 Difference]: Without dead ends: 942 [2020-07-20 22:58:17,761 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 22:58:17,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2020-07-20 22:58:17,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 942. [2020-07-20 22:58:17,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 942 states. [2020-07-20 22:58:17,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1067 transitions. [2020-07-20 22:58:17,814 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1067 transitions. Word has length 182 [2020-07-20 22:58:17,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:58:17,814 INFO L479 AbstractCegarLoop]: Abstraction has 942 states and 1067 transitions. [2020-07-20 22:58:17,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:58:17,815 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1067 transitions. [2020-07-20 22:58:17,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-07-20 22:58:17,818 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:58:17,818 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 22:58:18,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:58:18,033 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:58:18,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:58:18,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1390323253, now seen corresponding path program 1 times [2020-07-20 22:58:18,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:58:18,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [167207340] [2020-07-20 22:58:18,034 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 22:58:18,148 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:58:18,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 22:58:18,148 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 22:58:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 22:58:18,194 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 22:58:18,373 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 22:58:18,373 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 22:58:18,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:58:18,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:58:18 BoogieIcfgContainer [2020-07-20 22:58:18,781 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 22:58:18,784 INFO L168 Benchmark]: Toolchain (without parser) took 11773.95 ms. Allocated memory was 144.2 MB in the beginning and 363.3 MB in the end (delta: 219.2 MB). Free memory was 101.0 MB in the beginning and 163.9 MB in the end (delta: -62.9 MB). Peak memory consumption was 156.3 MB. Max. memory is 7.1 GB. [2020-07-20 22:58:18,786 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 144.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 22:58:18,787 INFO L168 Benchmark]: CACSL2BoogieTranslator took 463.52 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 100.8 MB in the beginning and 179.0 MB in the end (delta: -78.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-07-20 22:58:18,788 INFO L168 Benchmark]: Boogie Preprocessor took 61.18 ms. Allocated memory is still 200.8 MB. Free memory was 179.0 MB in the beginning and 176.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-20 22:58:18,790 INFO L168 Benchmark]: RCFGBuilder took 609.09 ms. Allocated memory is still 200.8 MB. Free memory was 175.9 MB in the beginning and 143.3 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. [2020-07-20 22:58:18,790 INFO L168 Benchmark]: TraceAbstraction took 10634.77 ms. Allocated memory was 200.8 MB in the beginning and 363.3 MB in the end (delta: 162.5 MB). Free memory was 142.6 MB in the beginning and 163.9 MB in the end (delta: -21.3 MB). Peak memory consumption was 141.2 MB. Max. memory is 7.1 GB. [2020-07-20 22:58:18,797 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 144.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 463.52 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 100.8 MB in the beginning and 179.0 MB in the end (delta: -78.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.18 ms. Allocated memory is still 200.8 MB. Free memory was 179.0 MB in the beginning and 176.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 609.09 ms. Allocated memory is still 200.8 MB. Free memory was 175.9 MB in the beginning and 143.3 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10634.77 ms. Allocated memory was 200.8 MB in the beginning and 363.3 MB in the end (delta: 162.5 MB). Free memory was 142.6 MB in the beginning and 163.9 MB in the end (delta: -21.3 MB). Peak memory consumption was 141.2 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)=11, \old(E_M)=7, \old(local)=14, \old(M_E)=15, \old(m_i)=13, \old(m_pc)=10, \old(m_st)=3, \old(T1_E)=12, \old(t1_i)=6, \old(t1_pc)=4, \old(t1_st)=8, \old(token)=9, 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: 10.3s, OverallIterations: 15, TraceHistogramMax: 3, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2972 SDtfs, 2368 SDslu, 3028 SDs, 0 SdLazy, 1375 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: 0.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 218 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1820 NumberOfCodeBlocks, 1229 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 1800 ConstructedInterpolants, 0 QuantifiedInterpolants, 356313 SizeOfPredicates, 22 NumberOfNonLiveVariables, 4590 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...