/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 18:23:02,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 18:23:02,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 18:23:02,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 18:23:02,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 18:23:02,450 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 18:23:02,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 18:23:02,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 18:23:02,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 18:23:02,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 18:23:02,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 18:23:02,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 18:23:02,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 18:23:02,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 18:23:02,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 18:23:02,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 18:23:02,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 18:23:02,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 18:23:02,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 18:23:02,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 18:23:02,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 18:23:02,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 18:23:02,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 18:23:02,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 18:23:02,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 18:23:02,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 18:23:02,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 18:23:02,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 18:23:02,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 18:23:02,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-07-20 18:23:02,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 18:23:02,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 18:23:02,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 18:23:02,483 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 18:23:02,497 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 18:23:02,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 18:23:02,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 18:23:02,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 18:23:02,499 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 18:23:02,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 18:23:02,499 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 18:23:02,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 18:23:02,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 18:23:02,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 18:23:02,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 18:23:02,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 18:23:02,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 18:23:02,501 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 18:23:02,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 18:23:02,501 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 18:23:02,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 18:23:02,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 18:23:02,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 18:23:02,502 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 18:23:02,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 18:23:02,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 18:23:02,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 18:23:02,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 18:23:02,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 18:23:02,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 18:23:02,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:02,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 18:23:02,504 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 18:23:02,504 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 18:23:02,857 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 18:23:02,873 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 18:23:02,877 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 18:23:02,878 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 18:23:02,878 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 18:23:02,879 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-07-20 18:23:02,954 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0958de68/4ebda32865764f17b9bacd18777f9a7a/FLAG90019a505 [2020-07-20 18:23:03,403 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 18:23:03,404 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-07-20 18:23:03,417 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0958de68/4ebda32865764f17b9bacd18777f9a7a/FLAG90019a505 [2020-07-20 18:23:03,759 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0958de68/4ebda32865764f17b9bacd18777f9a7a [2020-07-20 18:23:03,767 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 18:23:03,769 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 18:23:03,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 18:23:03,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 18:23:03,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 18:23:03,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:23:03" (1/1) ... [2020-07-20 18:23:03,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f9a9bea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:23:03, skipping insertion in model container [2020-07-20 18:23:03,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:23:03" (1/1) ... [2020-07-20 18:23:03,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 18:23:03,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 18:23:04,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 18:23:04,049 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 18:23:04,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 18:23:04,290 INFO L208 MainTranslator]: Completed translation [2020-07-20 18:23:04,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:23:04 WrapperNode [2020-07-20 18:23:04,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 18:23:04,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 18:23:04,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 18:23:04,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 18:23:04,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:23:04" (1/1) ... [2020-07-20 18:23:04,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:23:04" (1/1) ... [2020-07-20 18:23:04,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:23:04" (1/1) ... [2020-07-20 18:23:04,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:23:04" (1/1) ... [2020-07-20 18:23:04,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:23:04" (1/1) ... [2020-07-20 18:23:04,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:23:04" (1/1) ... [2020-07-20 18:23:04,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:23:04" (1/1) ... [2020-07-20 18:23:04,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 18:23:04,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 18:23:04,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 18:23:04,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 18:23:04,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:23:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 18:23:04,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 18:23:04,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 18:23:04,413 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-07-20 18:23:04,413 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-07-20 18:23:04,413 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-07-20 18:23:04,413 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-07-20 18:23:04,413 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-07-20 18:23:04,414 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-07-20 18:23:04,414 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-07-20 18:23:04,414 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-07-20 18:23:04,414 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-07-20 18:23:04,414 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-07-20 18:23:04,414 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-07-20 18:23:04,415 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-07-20 18:23:04,415 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-07-20 18:23:04,415 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-07-20 18:23:04,415 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-07-20 18:23:04,415 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-07-20 18:23:04,415 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-07-20 18:23:04,416 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-07-20 18:23:04,416 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 18:23:04,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 18:23:04,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 18:23:04,416 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-07-20 18:23:04,416 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-07-20 18:23:04,417 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-07-20 18:23:04,417 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-07-20 18:23:04,417 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-07-20 18:23:04,417 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-07-20 18:23:04,417 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-07-20 18:23:04,417 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-07-20 18:23:04,418 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-07-20 18:23:04,418 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-07-20 18:23:04,418 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-07-20 18:23:04,418 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-07-20 18:23:04,418 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-07-20 18:23:04,418 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-07-20 18:23:04,419 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-07-20 18:23:04,419 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-07-20 18:23:04,419 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-07-20 18:23:04,419 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-07-20 18:23:04,419 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 18:23:04,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 18:23:04,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 18:23:04,880 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 18:23:04,881 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 18:23:04,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:23:04 BoogieIcfgContainer [2020-07-20 18:23:04,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 18:23:04,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 18:23:04,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 18:23:04,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 18:23:04,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 06:23:03" (1/3) ... [2020-07-20 18:23:04,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@396030c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:23:04, skipping insertion in model container [2020-07-20 18:23:04,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:23:04" (2/3) ... [2020-07-20 18:23:04,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@396030c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:23:04, skipping insertion in model container [2020-07-20 18:23:04,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:23:04" (3/3) ... [2020-07-20 18:23:04,894 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2020-07-20 18:23:04,904 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 18:23:04,912 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 18:23:04,926 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 18:23:04,956 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 18:23:04,957 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 18:23:04,957 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 18:23:04,957 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 18:23:04,957 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 18:23:04,958 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 18:23:04,958 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 18:23:04,958 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 18:23:04,990 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states. [2020-07-20 18:23:05,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-07-20 18:23:05,006 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:23:05,008 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] [2020-07-20 18:23:05,009 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:23:05,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:23:05,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1024647557, now seen corresponding path program 1 times [2020-07-20 18:23:05,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:23:05,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366838607] [2020-07-20 18:23:05,026 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:05,218 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 18:23:05,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:23:05,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 18:23:05,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:23:05,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 18:23:05,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:23:05,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366838607] [2020-07-20 18:23:05,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:23:05,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 18:23:05,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451445492] [2020-07-20 18:23:05,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 18:23:05,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:23:05,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 18:23:05,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:23:05,337 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 3 states. [2020-07-20 18:23:05,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:23:05,431 INFO L93 Difference]: Finished difference Result 369 states and 517 transitions. [2020-07-20 18:23:05,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 18:23:05,433 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-20 18:23:05,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:23:05,450 INFO L225 Difference]: With dead ends: 369 [2020-07-20 18:23:05,450 INFO L226 Difference]: Without dead ends: 236 [2020-07-20 18:23:05,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:23:05,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-07-20 18:23:05,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 230. [2020-07-20 18:23:05,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-07-20 18:23:05,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 298 transitions. [2020-07-20 18:23:05,546 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 298 transitions. Word has length 75 [2020-07-20 18:23:05,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:23:05,548 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 298 transitions. [2020-07-20 18:23:05,548 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 18:23:05,548 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 298 transitions. [2020-07-20 18:23:05,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-07-20 18:23:05,552 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:23:05,552 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] [2020-07-20 18:23:05,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:05,756 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:23:05,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:23:05,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1898125252, now seen corresponding path program 1 times [2020-07-20 18:23:05,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:23:05,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1970302176] [2020-07-20 18:23:05,759 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:05,866 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 18:23:05,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:23:05,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 18:23:05,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:23:05,918 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 18:23:05,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:23:05,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1970302176] [2020-07-20 18:23:05,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:23:05,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 18:23:05,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196362751] [2020-07-20 18:23:05,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 18:23:05,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:23:05,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 18:23:05,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:23:05,928 INFO L87 Difference]: Start difference. First operand 230 states and 298 transitions. Second operand 3 states. [2020-07-20 18:23:06,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:23:06,030 INFO L93 Difference]: Finished difference Result 640 states and 852 transitions. [2020-07-20 18:23:06,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 18:23:06,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-20 18:23:06,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:23:06,045 INFO L225 Difference]: With dead ends: 640 [2020-07-20 18:23:06,045 INFO L226 Difference]: Without dead ends: 430 [2020-07-20 18:23:06,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:23:06,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-07-20 18:23:06,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 426. [2020-07-20 18:23:06,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-07-20 18:23:06,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 556 transitions. [2020-07-20 18:23:06,139 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 556 transitions. Word has length 75 [2020-07-20 18:23:06,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:23:06,139 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 556 transitions. [2020-07-20 18:23:06,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 18:23:06,140 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 556 transitions. [2020-07-20 18:23:06,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-07-20 18:23:06,143 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:23:06,143 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:23:06,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:06,344 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:23:06,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:23:06,345 INFO L82 PathProgramCache]: Analyzing trace with hash 523445752, now seen corresponding path program 1 times [2020-07-20 18:23:06,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:23:06,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052445729] [2020-07-20 18:23:06,347 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:06,399 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 18:23:06,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:23:06,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 18:23:06,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:23:06,439 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 18:23:06,439 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:23:06,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052445729] [2020-07-20 18:23:06,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:23:06,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 18:23:06,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627782896] [2020-07-20 18:23:06,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 18:23:06,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:23:06,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 18:23:06,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:23:06,444 INFO L87 Difference]: Start difference. First operand 426 states and 556 transitions. Second operand 3 states. [2020-07-20 18:23:06,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:23:06,524 INFO L93 Difference]: Finished difference Result 1214 states and 1646 transitions. [2020-07-20 18:23:06,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 18:23:06,525 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2020-07-20 18:23:06,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:23:06,532 INFO L225 Difference]: With dead ends: 1214 [2020-07-20 18:23:06,532 INFO L226 Difference]: Without dead ends: 809 [2020-07-20 18:23:06,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:23:06,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2020-07-20 18:23:06,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 809. [2020-07-20 18:23:06,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2020-07-20 18:23:06,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1078 transitions. [2020-07-20 18:23:06,592 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1078 transitions. Word has length 93 [2020-07-20 18:23:06,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:23:06,593 INFO L479 AbstractCegarLoop]: Abstraction has 809 states and 1078 transitions. [2020-07-20 18:23:06,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 18:23:06,593 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1078 transitions. [2020-07-20 18:23:06,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-20 18:23:06,603 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:23:06,603 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:23:06,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:06,805 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:23:06,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:23:06,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1326009440, now seen corresponding path program 1 times [2020-07-20 18:23:06,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:23:06,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266119888] [2020-07-20 18:23:06,807 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:06,899 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 18:23:06,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:23:06,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 18:23:06,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:23:06,978 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-20 18:23:06,979 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:23:06,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266119888] [2020-07-20 18:23:06,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:23:06,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 18:23:06,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377310310] [2020-07-20 18:23:06,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 18:23:06,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:23:06,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 18:23:06,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 18:23:06,984 INFO L87 Difference]: Start difference. First operand 809 states and 1078 transitions. Second operand 5 states. [2020-07-20 18:23:07,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:23:07,644 INFO L93 Difference]: Finished difference Result 2499 states and 3513 transitions. [2020-07-20 18:23:07,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 18:23:07,645 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2020-07-20 18:23:07,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:23:07,656 INFO L225 Difference]: With dead ends: 2499 [2020-07-20 18:23:07,656 INFO L226 Difference]: Without dead ends: 1712 [2020-07-20 18:23:07,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 18:23:07,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2020-07-20 18:23:07,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1533. [2020-07-20 18:23:07,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1533 states. [2020-07-20 18:23:07,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 2030 transitions. [2020-07-20 18:23:07,764 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 2030 transitions. Word has length 128 [2020-07-20 18:23:07,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:23:07,765 INFO L479 AbstractCegarLoop]: Abstraction has 1533 states and 2030 transitions. [2020-07-20 18:23:07,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 18:23:07,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 2030 transitions. [2020-07-20 18:23:07,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-20 18:23:07,769 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:23:07,770 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-20 18:23:07,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:07,985 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:23:07,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:23:07,986 INFO L82 PathProgramCache]: Analyzing trace with hash -606459977, now seen corresponding path program 1 times [2020-07-20 18:23:07,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:23:07,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [412708602] [2020-07-20 18:23:07,988 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:08,070 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 18:23:08,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:23:08,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 18:23:08,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:23:08,135 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-07-20 18:23:08,135 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:23:08,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [412708602] [2020-07-20 18:23:08,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:23:08,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 18:23:08,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017867364] [2020-07-20 18:23:08,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 18:23:08,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:23:08,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 18:23:08,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:23:08,138 INFO L87 Difference]: Start difference. First operand 1533 states and 2030 transitions. Second operand 3 states. [2020-07-20 18:23:08,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:23:08,295 INFO L93 Difference]: Finished difference Result 4358 states and 5928 transitions. [2020-07-20 18:23:08,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 18:23:08,295 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2020-07-20 18:23:08,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:23:08,324 INFO L225 Difference]: With dead ends: 4358 [2020-07-20 18:23:08,325 INFO L226 Difference]: Without dead ends: 2851 [2020-07-20 18:23:08,335 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:23:08,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2020-07-20 18:23:08,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2848. [2020-07-20 18:23:08,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2848 states. [2020-07-20 18:23:08,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 3736 transitions. [2020-07-20 18:23:08,530 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 3736 transitions. Word has length 163 [2020-07-20 18:23:08,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:23:08,532 INFO L479 AbstractCegarLoop]: Abstraction has 2848 states and 3736 transitions. [2020-07-20 18:23:08,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 18:23:08,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 3736 transitions. [2020-07-20 18:23:08,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-20 18:23:08,535 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:23:08,536 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:23:08,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:08,749 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:23:08,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:23:08,750 INFO L82 PathProgramCache]: Analyzing trace with hash -344494688, now seen corresponding path program 1 times [2020-07-20 18:23:08,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:23:08,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1113395983] [2020-07-20 18:23:08,751 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:08,801 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 18:23:08,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:23:08,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 18:23:08,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:23:08,828 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-20 18:23:08,828 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:23:08,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1113395983] [2020-07-20 18:23:08,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:23:08,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 18:23:08,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644107221] [2020-07-20 18:23:08,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 18:23:08,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:23:08,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 18:23:08,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:23:08,831 INFO L87 Difference]: Start difference. First operand 2848 states and 3736 transitions. Second operand 3 states. [2020-07-20 18:23:08,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:23:08,950 INFO L93 Difference]: Finished difference Result 5013 states and 6590 transitions. [2020-07-20 18:23:08,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 18:23:08,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2020-07-20 18:23:08,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:23:08,975 INFO L225 Difference]: With dead ends: 5013 [2020-07-20 18:23:08,975 INFO L226 Difference]: Without dead ends: 2189 [2020-07-20 18:23:08,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:23:08,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2189 states. [2020-07-20 18:23:09,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2189 to 2189. [2020-07-20 18:23:09,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2189 states. [2020-07-20 18:23:09,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2189 states to 2189 states and 2885 transitions. [2020-07-20 18:23:09,141 INFO L78 Accepts]: Start accepts. Automaton has 2189 states and 2885 transitions. Word has length 128 [2020-07-20 18:23:09,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:23:09,142 INFO L479 AbstractCegarLoop]: Abstraction has 2189 states and 2885 transitions. [2020-07-20 18:23:09,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 18:23:09,142 INFO L276 IsEmpty]: Start isEmpty. Operand 2189 states and 2885 transitions. [2020-07-20 18:23:09,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-20 18:23:09,145 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:23:09,145 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:23:09,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:09,361 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:23:09,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:23:09,361 INFO L82 PathProgramCache]: Analyzing trace with hash -815851038, now seen corresponding path program 1 times [2020-07-20 18:23:09,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:23:09,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1547563080] [2020-07-20 18:23:09,362 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:09,431 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 18:23:09,431 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:23:09,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 18:23:09,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:23:09,476 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-20 18:23:09,476 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:23:09,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1547563080] [2020-07-20 18:23:09,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:23:09,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 18:23:09,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611347072] [2020-07-20 18:23:09,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 18:23:09,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:23:09,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 18:23:09,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 18:23:09,478 INFO L87 Difference]: Start difference. First operand 2189 states and 2885 transitions. Second operand 5 states. [2020-07-20 18:23:09,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:23:09,873 INFO L93 Difference]: Finished difference Result 4356 states and 5832 transitions. [2020-07-20 18:23:09,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 18:23:09,874 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2020-07-20 18:23:09,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:23:09,887 INFO L225 Difference]: With dead ends: 4356 [2020-07-20 18:23:09,887 INFO L226 Difference]: Without dead ends: 2189 [2020-07-20 18:23:09,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 18:23:09,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2189 states. [2020-07-20 18:23:10,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2189 to 2189. [2020-07-20 18:23:10,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2189 states. [2020-07-20 18:23:10,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2189 states to 2189 states and 2813 transitions. [2020-07-20 18:23:10,019 INFO L78 Accepts]: Start accepts. Automaton has 2189 states and 2813 transitions. Word has length 128 [2020-07-20 18:23:10,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:23:10,020 INFO L479 AbstractCegarLoop]: Abstraction has 2189 states and 2813 transitions. [2020-07-20 18:23:10,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 18:23:10,020 INFO L276 IsEmpty]: Start isEmpty. Operand 2189 states and 2813 transitions. [2020-07-20 18:23:10,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-20 18:23:10,025 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:23:10,025 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:23:10,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:10,239 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:23:10,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:23:10,239 INFO L82 PathProgramCache]: Analyzing trace with hash -600098978, now seen corresponding path program 1 times [2020-07-20 18:23:10,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:23:10,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500622227] [2020-07-20 18:23:10,241 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:10,323 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 18:23:10,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:23:10,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 18:23:10,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:23:10,366 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 18:23:10,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:23:10,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500622227] [2020-07-20 18:23:10,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:23:10,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 18:23:10,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557031436] [2020-07-20 18:23:10,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 18:23:10,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:23:10,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 18:23:10,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:23:10,371 INFO L87 Difference]: Start difference. First operand 2189 states and 2813 transitions. Second operand 3 states. [2020-07-20 18:23:10,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:23:10,614 INFO L93 Difference]: Finished difference Result 5699 states and 7597 transitions. [2020-07-20 18:23:10,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 18:23:10,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2020-07-20 18:23:10,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:23:10,640 INFO L225 Difference]: With dead ends: 5699 [2020-07-20 18:23:10,640 INFO L226 Difference]: Without dead ends: 3536 [2020-07-20 18:23:10,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:23:10,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3536 states. [2020-07-20 18:23:10,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3536 to 3477. [2020-07-20 18:23:10,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3477 states. [2020-07-20 18:23:10,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3477 states to 3477 states and 4529 transitions. [2020-07-20 18:23:10,846 INFO L78 Accepts]: Start accepts. Automaton has 3477 states and 4529 transitions. Word has length 128 [2020-07-20 18:23:10,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:23:10,848 INFO L479 AbstractCegarLoop]: Abstraction has 3477 states and 4529 transitions. [2020-07-20 18:23:10,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 18:23:10,849 INFO L276 IsEmpty]: Start isEmpty. Operand 3477 states and 4529 transitions. [2020-07-20 18:23:10,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 18:23:10,853 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:23:10,853 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:23:11,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:11,068 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:23:11,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:23:11,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1959893669, now seen corresponding path program 1 times [2020-07-20 18:23:11,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:23:11,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1341864146] [2020-07-20 18:23:11,069 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:11,152 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 18:23:11,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:23:11,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 18:23:11,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:23:11,192 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-20 18:23:11,193 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:23:11,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1341864146] [2020-07-20 18:23:11,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:23:11,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 18:23:11,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348209601] [2020-07-20 18:23:11,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 18:23:11,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:23:11,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 18:23:11,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 18:23:11,195 INFO L87 Difference]: Start difference. First operand 3477 states and 4529 transitions. Second operand 5 states. [2020-07-20 18:23:11,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:23:11,830 INFO L93 Difference]: Finished difference Result 7700 states and 10156 transitions. [2020-07-20 18:23:11,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 18:23:11,831 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-07-20 18:23:11,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:23:11,856 INFO L225 Difference]: With dead ends: 7700 [2020-07-20 18:23:11,856 INFO L226 Difference]: Without dead ends: 4245 [2020-07-20 18:23:11,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 18:23:11,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4245 states. [2020-07-20 18:23:12,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4245 to 3933. [2020-07-20 18:23:12,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3933 states. [2020-07-20 18:23:12,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3933 states to 3933 states and 4897 transitions. [2020-07-20 18:23:12,139 INFO L78 Accepts]: Start accepts. Automaton has 3933 states and 4897 transitions. Word has length 129 [2020-07-20 18:23:12,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:23:12,140 INFO L479 AbstractCegarLoop]: Abstraction has 3933 states and 4897 transitions. [2020-07-20 18:23:12,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 18:23:12,140 INFO L276 IsEmpty]: Start isEmpty. Operand 3933 states and 4897 transitions. [2020-07-20 18:23:12,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 18:23:12,143 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:23:12,143 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:23:12,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:12,358 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:23:12,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:23:12,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1120860007, now seen corresponding path program 1 times [2020-07-20 18:23:12,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:23:12,359 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678334652] [2020-07-20 18:23:12,359 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:12,423 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 18:23:12,423 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:23:12,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 18:23:12,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:23:12,464 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-07-20 18:23:12,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:23:12,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678334652] [2020-07-20 18:23:12,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:23:12,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 18:23:12,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531689941] [2020-07-20 18:23:12,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 18:23:12,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:23:12,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 18:23:12,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 18:23:12,466 INFO L87 Difference]: Start difference. First operand 3933 states and 4897 transitions. Second operand 6 states. [2020-07-20 18:23:12,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:23:12,647 INFO L93 Difference]: Finished difference Result 7962 states and 10100 transitions. [2020-07-20 18:23:12,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 18:23:12,647 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2020-07-20 18:23:12,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:23:12,670 INFO L225 Difference]: With dead ends: 7962 [2020-07-20 18:23:12,670 INFO L226 Difference]: Without dead ends: 4053 [2020-07-20 18:23:12,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 18:23:12,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4053 states. [2020-07-20 18:23:12,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4053 to 4033. [2020-07-20 18:23:12,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4033 states. [2020-07-20 18:23:12,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4033 states to 4033 states and 4943 transitions. [2020-07-20 18:23:12,960 INFO L78 Accepts]: Start accepts. Automaton has 4033 states and 4943 transitions. Word has length 129 [2020-07-20 18:23:12,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:23:12,960 INFO L479 AbstractCegarLoop]: Abstraction has 4033 states and 4943 transitions. [2020-07-20 18:23:12,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 18:23:12,960 INFO L276 IsEmpty]: Start isEmpty. Operand 4033 states and 4943 transitions. [2020-07-20 18:23:12,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 18:23:12,964 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:23:12,964 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:23:13,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:13,180 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:23:13,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:23:13,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1942329383, now seen corresponding path program 1 times [2020-07-20 18:23:13,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:23:13,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963655104] [2020-07-20 18:23:13,182 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:13,270 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 18:23:13,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:23:13,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 18:23:13,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:23:13,312 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-20 18:23:13,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:23:13,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963655104] [2020-07-20 18:23:13,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:23:13,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 18:23:13,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677696121] [2020-07-20 18:23:13,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 18:23:13,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:23:13,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 18:23:13,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 18:23:13,315 INFO L87 Difference]: Start difference. First operand 4033 states and 4943 transitions. Second operand 6 states. [2020-07-20 18:23:13,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:23:13,458 INFO L93 Difference]: Finished difference Result 6791 states and 8415 transitions. [2020-07-20 18:23:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 18:23:13,459 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2020-07-20 18:23:13,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:23:13,472 INFO L225 Difference]: With dead ends: 6791 [2020-07-20 18:23:13,473 INFO L226 Difference]: Without dead ends: 2450 [2020-07-20 18:23:13,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 18:23:13,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2450 states. [2020-07-20 18:23:13,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2450 to 2450. [2020-07-20 18:23:13,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2450 states. [2020-07-20 18:23:13,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 2938 transitions. [2020-07-20 18:23:13,592 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 2938 transitions. Word has length 129 [2020-07-20 18:23:13,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:23:13,592 INFO L479 AbstractCegarLoop]: Abstraction has 2450 states and 2938 transitions. [2020-07-20 18:23:13,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 18:23:13,593 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 2938 transitions. [2020-07-20 18:23:13,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 18:23:13,594 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:23:13,595 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:23:13,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:13,810 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:23:13,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:23:13,811 INFO L82 PathProgramCache]: Analyzing trace with hash 473506967, now seen corresponding path program 1 times [2020-07-20 18:23:13,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:23:13,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303908726] [2020-07-20 18:23:13,812 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:13,908 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 18:23:13,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 18:23:13,909 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 18:23:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 18:23:14,020 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 18:23:14,114 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 18:23:14,115 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 18:23:14,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:14,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 06:23:14 BoogieIcfgContainer [2020-07-20 18:23:14,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 18:23:14,444 INFO L168 Benchmark]: Toolchain (without parser) took 10674.90 ms. Allocated memory was 147.8 MB in the beginning and 385.9 MB in the end (delta: 238.0 MB). Free memory was 105.5 MB in the beginning and 282.4 MB in the end (delta: -176.9 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. [2020-07-20 18:23:14,444 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 147.8 MB. Free memory was 124.0 MB in the beginning and 123.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 18:23:14,445 INFO L168 Benchmark]: CACSL2BoogieTranslator took 520.90 ms. Allocated memory was 147.8 MB in the beginning and 205.5 MB in the end (delta: 57.7 MB). Free memory was 105.0 MB in the beginning and 184.6 MB in the end (delta: -79.5 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-07-20 18:23:14,446 INFO L168 Benchmark]: Boogie Preprocessor took 65.33 ms. Allocated memory is still 205.5 MB. Free memory was 184.6 MB in the beginning and 182.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-07-20 18:23:14,446 INFO L168 Benchmark]: RCFGBuilder took 528.56 ms. Allocated memory is still 205.5 MB. Free memory was 182.3 MB in the beginning and 152.0 MB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. [2020-07-20 18:23:14,447 INFO L168 Benchmark]: TraceAbstraction took 9554.51 ms. Allocated memory was 205.5 MB in the beginning and 385.9 MB in the end (delta: 180.4 MB). Free memory was 152.0 MB in the beginning and 282.4 MB in the end (delta: -130.4 MB). Peak memory consumption was 50.0 MB. Max. memory is 7.1 GB. [2020-07-20 18:23:14,450 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 147.8 MB. Free memory was 124.0 MB in the beginning and 123.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 520.90 ms. Allocated memory was 147.8 MB in the beginning and 205.5 MB in the end (delta: 57.7 MB). Free memory was 105.0 MB in the beginning and 184.6 MB in the end (delta: -79.5 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.33 ms. Allocated memory is still 205.5 MB. Free memory was 184.6 MB in the beginning and 182.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 528.56 ms. Allocated memory is still 205.5 MB. Free memory was 182.3 MB in the beginning and 152.0 MB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9554.51 ms. Allocated memory was 205.5 MB in the beginning and 385.9 MB in the end (delta: 180.4 MB). Free memory was 152.0 MB in the beginning and 282.4 MB in the end (delta: -130.4 MB). Peak memory consumption was 50.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] int m_pc = 0; [L16] int t1_pc = 0; [L17] int m_st ; [L18] int t1_st ; [L19] int m_i ; [L20] int t1_i ; [L21] int M_E = 2; [L22] int T1_E = 2; [L23] int E_1 = 2; VAL [\old(E_1)=6, \old(M_E)=11, \old(m_i)=9, \old(m_pc)=10, \old(m_st)=3, \old(T1_E)=8, \old(t1_i)=5, \old(t1_pc)=4, \old(t1_st)=7, E_1=2, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0] [L439] int __retres1 ; VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0] [L443] CALL init_model() VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0] [L354] m_i = 1 [L355] t1_i = 1 VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L443] RET init_model() VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L444] CALL start_simulation() VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L380] int kernel_st ; [L381] int tmp ; [L382] int tmp___0 ; [L386] kernel_st = 0 VAL [\old(E_1)=2, \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, E_1=2, kernel_st=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] [L387] FCALL update_channels() VAL [\old(E_1)=2, \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, E_1=2, kernel_st=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] [L388] CALL init_threads() VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L151] COND TRUE m_i == 1 [L152] m_st = 0 VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L156] COND TRUE t1_i == 1 [L157] t1_st = 0 VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L388] RET init_threads() VAL [\old(E_1)=2, \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, E_1=2, kernel_st=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] [L389] CALL fire_delta_events() VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L240] COND FALSE !(M_E == 0) VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L245] COND FALSE !(T1_E == 0) VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L250] COND FALSE !(E_1 == 0) VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L389] RET fire_delta_events() VAL [\old(E_1)=2, \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, E_1=2, kernel_st=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] [L390] CALL activate_threads() VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L283] int tmp ; [L284] int tmp___0 ; VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L288] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L102] int __retres1 ; VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L105] COND FALSE !(m_pc == 1) VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L115] __retres1 = 0 VAL [\old(E_1)=2, \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, __retres1=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L117] return (__retres1); VAL [\old(E_1)=2, \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, \result=0, __retres1=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L288] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \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, E_1=2, is_master_triggered()=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] [L288] tmp = is_master_triggered() [L290] COND FALSE !(\read(tmp)) VAL [\old(E_1)=2, \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, E_1=2, 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] [L296] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L121] int __retres1 ; VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L124] COND FALSE !(t1_pc == 1) VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L134] __retres1 = 0 VAL [\old(E_1)=2, \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, __retres1=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L136] return (__retres1); VAL [\old(E_1)=2, \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, \result=0, __retres1=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L296] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \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, E_1=2, is_transmit1_triggered()=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] [L296] tmp___0 = is_transmit1_triggered() [L298] COND FALSE !(\read(tmp___0)) VAL [\old(E_1)=2, \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, E_1=2, 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] [L390] RET activate_threads() VAL [\old(E_1)=2, \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, E_1=2, kernel_st=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] [L391] CALL reset_delta_events() VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L263] COND FALSE !(M_E == 1) VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L268] COND FALSE !(T1_E == 1) VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L273] COND FALSE !(E_1 == 1) VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L391] RET reset_delta_events() VAL [\old(E_1)=2, \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, E_1=2, kernel_st=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] [L394] COND TRUE 1 VAL [\old(E_1)=2, \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, E_1=2, kernel_st=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] [L397] kernel_st = 1 VAL [\old(E_1)=2, \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, E_1=2, kernel_st=1, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L398] CALL eval() VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L187] int tmp ; VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L191] COND TRUE 1 VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L194] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L166] int __retres1 ; VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L169] COND TRUE m_st == 0 [L170] __retres1 = 1 VAL [\old(E_1)=2, \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, __retres1=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L182] return (__retres1); VAL [\old(E_1)=2, \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, \result=1, __retres1=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L194] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \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, E_1=2, exists_runnable_thread()=1, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L194] tmp = exists_runnable_thread() [L196] COND TRUE \read(tmp) VAL [\old(E_1)=2, \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, E_1=2, 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] [L201] COND TRUE m_st == 0 [L202] int tmp_ndt_1; [L203] tmp_ndt_1 = __VERIFIER_nondet_int() [L204] COND FALSE !(\read(tmp_ndt_1)) VAL [\old(E_1)=2, \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, E_1=2, 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] [L215] COND TRUE t1_st == 0 [L216] int tmp_ndt_2; [L217] tmp_ndt_2 = __VERIFIER_nondet_int() [L218] COND TRUE \read(tmp_ndt_2) [L220] t1_st = 1 VAL [\old(E_1)=2, \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, E_1=2, 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] [L221] CALL transmit1() VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L72] COND TRUE t1_pc == 0 VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L83] COND TRUE 1 VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L85] t1_pc = 1 [L86] t1_st = 2 VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L221] RET transmit1() VAL [\old(E_1)=2, \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, E_1=2, 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] [L191] COND TRUE 1 VAL [\old(E_1)=2, \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, E_1=2, 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] [L194] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L166] int __retres1 ; VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L169] COND TRUE m_st == 0 [L170] __retres1 = 1 VAL [\old(E_1)=2, \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, __retres1=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L182] return (__retres1); VAL [\old(E_1)=2, \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, \result=1, __retres1=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L194] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \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, E_1=2, exists_runnable_thread()=1, 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] [L194] tmp = exists_runnable_thread() [L196] COND TRUE \read(tmp) VAL [\old(E_1)=2, \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, E_1=2, 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] [L201] COND TRUE m_st == 0 [L202] int tmp_ndt_1; [L203] tmp_ndt_1 = __VERIFIER_nondet_int() [L204] COND TRUE \read(tmp_ndt_1) [L206] m_st = 1 VAL [\old(E_1)=2, \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, E_1=2, 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] [L207] CALL master() VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L31] COND TRUE m_pc == 0 VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L42] COND TRUE 1 VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L45] E_1 = 1 VAL [\old(E_1)=2, \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, E_1=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] [L46] CALL immediate_notify() VAL [\old(E_1)=2, \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, E_1=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] [L312] CALL activate_threads() VAL [\old(E_1)=2, \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, E_1=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] [L283] int tmp ; [L284] int tmp___0 ; VAL [\old(E_1)=2, \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, E_1=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] [L288] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \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, E_1=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] [L102] int __retres1 ; VAL [\old(E_1)=2, \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, E_1=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] [L105] COND FALSE !(m_pc == 1) VAL [\old(E_1)=2, \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, E_1=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] [L115] __retres1 = 0 VAL [\old(E_1)=2, \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, __retres1=0, E_1=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] [L117] return (__retres1); VAL [\old(E_1)=2, \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, \result=0, __retres1=0, E_1=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] [L288] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \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, E_1=1, is_master_triggered()=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] [L288] tmp = is_master_triggered() [L290] COND FALSE !(\read(tmp)) VAL [\old(E_1)=2, \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, E_1=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] [L296] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \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, E_1=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] [L121] int __retres1 ; VAL [\old(E_1)=2, \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, E_1=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] [L124] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \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, E_1=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] [L125] COND TRUE E_1 == 1 [L126] __retres1 = 1 VAL [\old(E_1)=2, \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, __retres1=1, E_1=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] [L136] return (__retres1); VAL [\old(E_1)=2, \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, \result=1, __retres1=1, E_1=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] [L296] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \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, E_1=1, is_transmit1_triggered()=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] [L296] tmp___0 = is_transmit1_triggered() [L298] COND TRUE \read(tmp___0) [L299] t1_st = 0 VAL [\old(E_1)=2, \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, E_1=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] [L312] RET activate_threads() VAL [\old(E_1)=2, \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, E_1=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] [L46] RET immediate_notify() VAL [\old(E_1)=2, \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, E_1=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] [L47] E_1 = 2 VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L50] COND TRUE 1 VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L52] m_pc = 1 [L53] m_st = 2 VAL [\old(E_1)=2, \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, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L207] RET master() VAL [\old(E_1)=2, \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, E_1=2, 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] [L215] COND TRUE t1_st == 0 [L216] int tmp_ndt_2; [L217] tmp_ndt_2 = __VERIFIER_nondet_int() [L218] COND TRUE \read(tmp_ndt_2) [L220] t1_st = 1 VAL [\old(E_1)=2, \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, E_1=2, 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] [L221] CALL transmit1() VAL [\old(E_1)=2, \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)=1, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L72] COND FALSE !(t1_pc == 0) VAL [\old(E_1)=2, \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)=1, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L75] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \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)=1, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L91] CALL error() VAL [\old(E_1)=2, \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)=1, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L11] __VERIFIER_error() VAL [\old(E_1)=2, \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)=1, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 139 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.3s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2206 SDtfs, 1522 SDslu, 2216 SDs, 0 SdLazy, 804 SolverSat, 333 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1301 GetRequests, 1269 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4033occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 583 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1434 NumberOfCodeBlocks, 828 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1294 ConstructedInterpolants, 0 QuantifiedInterpolants, 215324 SizeOfPredicates, 14 NumberOfNonLiveVariables, 3092 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 344/344 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...