/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_FUNCTIONS --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.02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 15:00:03,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 15:00:03,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 15:00:03,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 15:00:03,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 15:00:03,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 15:00:03,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 15:00:03,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 15:00:03,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 15:00:03,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 15:00:03,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 15:00:03,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 15:00:03,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 15:00:03,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 15:00:03,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 15:00:03,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 15:00:03,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 15:00:03,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 15:00:03,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 15:00:03,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 15:00:03,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 15:00:03,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 15:00:03,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 15:00:03,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 15:00:03,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 15:00:03,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 15:00:03,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 15:00:03,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 15:00:03,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 15:00:03,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 15:00:03,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 15:00:03,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 15:00:03,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 15:00:03,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 15:00:03,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 15:00:03,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 15:00:03,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 15:00:03,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 15:00:03,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 15:00:03,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 15:00:03,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 15:00:03,626 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 15:00:03,662 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 15:00:03,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 15:00:03,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 15:00:03,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 15:00:03,664 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 15:00:03,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 15:00:03,664 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 15:00:03,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 15:00:03,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 15:00:03,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 15:00:03,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 15:00:03,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 15:00:03,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 15:00:03,666 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 15:00:03,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 15:00:03,666 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 15:00:03,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 15:00:03,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 15:00:03,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 15:00:03,667 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 15:00:03,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 15:00:03,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 15:00:03,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 15:00:03,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 15:00:03,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 15:00:03,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 15:00:03,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:03,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 15:00:03,669 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 15:00:03,669 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_FUNCTIONS 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 15:00:03,974 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 15:00:03,988 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 15:00:03,992 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 15:00:03,994 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 15:00:03,994 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 15:00:03,995 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.02.cil.c [2020-07-20 15:00:04,063 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d7e28c3/3e1a30f7392d493993966705a82409bf/FLAGd204bda70 [2020-07-20 15:00:04,576 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 15:00:04,577 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.02.cil.c [2020-07-20 15:00:04,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d7e28c3/3e1a30f7392d493993966705a82409bf/FLAGd204bda70 [2020-07-20 15:00:04,933 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d7e28c3/3e1a30f7392d493993966705a82409bf [2020-07-20 15:00:04,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 15:00:04,946 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 15:00:04,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 15:00:04,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 15:00:04,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 15:00:04,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:00:04" (1/1) ... [2020-07-20 15:00:04,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4be96cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:00:04, skipping insertion in model container [2020-07-20 15:00:04,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:00:04" (1/1) ... [2020-07-20 15:00:04,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 15:00:05,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 15:00:05,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 15:00:05,281 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 15:00:05,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 15:00:05,448 INFO L208 MainTranslator]: Completed translation [2020-07-20 15:00:05,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:00:05 WrapperNode [2020-07-20 15:00:05,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 15:00:05,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 15:00:05,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 15:00:05,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 15:00:05,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:00:05" (1/1) ... [2020-07-20 15:00:05,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:00:05" (1/1) ... [2020-07-20 15:00:05,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:00:05" (1/1) ... [2020-07-20 15:00:05,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:00:05" (1/1) ... [2020-07-20 15:00:05,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:00:05" (1/1) ... [2020-07-20 15:00:05,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:00:05" (1/1) ... [2020-07-20 15:00:05,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:00:05" (1/1) ... [2020-07-20 15:00:05,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 15:00:05,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 15:00:05,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 15:00:05,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 15:00:05,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:00:05" (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 15:00:05,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 15:00:05,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 15:00:05,566 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-07-20 15:00:05,567 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-07-20 15:00:05,567 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-07-20 15:00:05,567 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-07-20 15:00:05,567 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-07-20 15:00:05,567 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-07-20 15:00:05,568 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-07-20 15:00:05,568 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-07-20 15:00:05,568 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-07-20 15:00:05,568 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-07-20 15:00:05,568 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-07-20 15:00:05,568 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-07-20 15:00:05,569 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-07-20 15:00:05,573 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-07-20 15:00:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-07-20 15:00:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-07-20 15:00:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-07-20 15:00:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-07-20 15:00:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-07-20 15:00:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-07-20 15:00:05,575 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 15:00:05,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 15:00:05,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 15:00:05,575 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-07-20 15:00:05,575 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-07-20 15:00:05,575 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-07-20 15:00:05,575 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-07-20 15:00:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-07-20 15:00:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-07-20 15:00:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-07-20 15:00:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-07-20 15:00:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-07-20 15:00:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-07-20 15:00:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-07-20 15:00:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-07-20 15:00:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-07-20 15:00:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-07-20 15:00:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-07-20 15:00:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-07-20 15:00:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-07-20 15:00:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-07-20 15:00:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-07-20 15:00:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-07-20 15:00:05,579 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 15:00:05,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 15:00:05,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 15:00:06,151 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 15:00:06,152 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-20 15:00:06,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:00:06 BoogieIcfgContainer [2020-07-20 15:00:06,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 15:00:06,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 15:00:06,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 15:00:06,164 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 15:00:06,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 03:00:04" (1/3) ... [2020-07-20 15:00:06,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d26847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:00:06, skipping insertion in model container [2020-07-20 15:00:06,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:00:05" (2/3) ... [2020-07-20 15:00:06,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d26847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:00:06, skipping insertion in model container [2020-07-20 15:00:06,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:00:06" (3/3) ... [2020-07-20 15:00:06,168 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.02.cil.c [2020-07-20 15:00:06,180 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 15:00:06,188 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 15:00:06,204 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 15:00:06,233 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 15:00:06,233 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 15:00:06,233 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 15:00:06,233 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 15:00:06,233 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 15:00:06,234 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 15:00:06,234 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 15:00:06,234 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 15:00:06,258 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2020-07-20 15:00:06,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-07-20 15:00:06,269 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:06,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 15:00:06,271 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:06,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:06,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1996614335, now seen corresponding path program 1 times [2020-07-20 15:00:06,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:06,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [9734067] [2020-07-20 15:00:06,284 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 15:00:06,497 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 15:00:06,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 15:00:06,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 15:00:06,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 15:00:06,577 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 15:00:06,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 15:00:06,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [9734067] [2020-07-20 15:00:06,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 15:00:06,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 15:00:06,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170457388] [2020-07-20 15:00:06,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 15:00:06,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 15:00:06,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 15:00:06,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 15:00:06,606 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 3 states. [2020-07-20 15:00:06,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 15:00:06,683 INFO L93 Difference]: Finished difference Result 320 states and 454 transitions. [2020-07-20 15:00:06,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 15:00:06,685 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-07-20 15:00:06,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 15:00:06,701 INFO L225 Difference]: With dead ends: 320 [2020-07-20 15:00:06,702 INFO L226 Difference]: Without dead ends: 160 [2020-07-20 15:00:06,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 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 15:00:06,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-07-20 15:00:06,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-07-20 15:00:06,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-07-20 15:00:06,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 212 transitions. [2020-07-20 15:00:06,784 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 212 transitions. Word has length 90 [2020-07-20 15:00:06,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 15:00:06,787 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 212 transitions. [2020-07-20 15:00:06,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 15:00:06,787 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 212 transitions. [2020-07-20 15:00:06,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-07-20 15:00:06,792 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:06,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 15:00:07,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:07,008 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:07,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:07,009 INFO L82 PathProgramCache]: Analyzing trace with hash -387310403, now seen corresponding path program 1 times [2020-07-20 15:00:07,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:07,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1548023713] [2020-07-20 15:00:07,010 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 15:00:07,130 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 15:00:07,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 15:00:07,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 15:00:07,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 15:00:07,168 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 15:00:07,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 15:00:07,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1548023713] [2020-07-20 15:00:07,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 15:00:07,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 15:00:07,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931453672] [2020-07-20 15:00:07,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 15:00:07,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 15:00:07,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 15:00:07,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 15:00:07,175 INFO L87 Difference]: Start difference. First operand 160 states and 212 transitions. Second operand 3 states. [2020-07-20 15:00:07,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 15:00:07,272 INFO L93 Difference]: Finished difference Result 432 states and 593 transitions. [2020-07-20 15:00:07,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 15:00:07,273 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-07-20 15:00:07,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 15:00:07,279 INFO L225 Difference]: With dead ends: 432 [2020-07-20 15:00:07,279 INFO L226 Difference]: Without dead ends: 294 [2020-07-20 15:00:07,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 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 15:00:07,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-20 15:00:07,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 288. [2020-07-20 15:00:07,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-07-20 15:00:07,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 396 transitions. [2020-07-20 15:00:07,326 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 396 transitions. Word has length 90 [2020-07-20 15:00:07,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 15:00:07,329 INFO L479 AbstractCegarLoop]: Abstraction has 288 states and 396 transitions. [2020-07-20 15:00:07,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 15:00:07,330 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 396 transitions. [2020-07-20 15:00:07,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-20 15:00:07,338 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:07,338 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 15:00:07,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:07,555 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:07,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:07,555 INFO L82 PathProgramCache]: Analyzing trace with hash 16326453, now seen corresponding path program 1 times [2020-07-20 15:00:07,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:07,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2057362796] [2020-07-20 15:00:07,556 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 15:00:07,647 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 15:00:07,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 15:00:07,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 15:00:07,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 15:00:07,712 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 15:00:07,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 15:00:07,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2057362796] [2020-07-20 15:00:07,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 15:00:07,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 15:00:07,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447724108] [2020-07-20 15:00:07,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 15:00:07,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 15:00:07,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 15:00:07,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 15:00:07,719 INFO L87 Difference]: Start difference. First operand 288 states and 396 transitions. Second operand 3 states. [2020-07-20 15:00:07,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 15:00:07,784 INFO L93 Difference]: Finished difference Result 548 states and 754 transitions. [2020-07-20 15:00:07,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 15:00:07,785 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2020-07-20 15:00:07,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 15:00:07,798 INFO L225 Difference]: With dead ends: 548 [2020-07-20 15:00:07,798 INFO L226 Difference]: Without dead ends: 281 [2020-07-20 15:00:07,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 15:00:07,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-07-20 15:00:07,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2020-07-20 15:00:07,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-07-20 15:00:07,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 383 transitions. [2020-07-20 15:00:07,860 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 383 transitions. Word has length 91 [2020-07-20 15:00:07,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 15:00:07,860 INFO L479 AbstractCegarLoop]: Abstraction has 281 states and 383 transitions. [2020-07-20 15:00:07,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 15:00:07,861 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 383 transitions. [2020-07-20 15:00:07,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-20 15:00:07,862 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:07,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 15:00:08,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:08,078 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:08,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:08,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1717777997, now seen corresponding path program 1 times [2020-07-20 15:00:08,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:08,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875127566] [2020-07-20 15:00:08,079 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 15:00:08,180 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 15:00:08,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 15:00:08,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 15:00:08,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 15:00:08,252 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 15:00:08,253 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 15:00:08,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875127566] [2020-07-20 15:00:08,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 15:00:08,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 15:00:08,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538167103] [2020-07-20 15:00:08,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 15:00:08,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 15:00:08,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 15:00:08,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 15:00:08,256 INFO L87 Difference]: Start difference. First operand 281 states and 383 transitions. Second operand 5 states. [2020-07-20 15:00:09,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 15:00:09,020 INFO L93 Difference]: Finished difference Result 835 states and 1202 transitions. [2020-07-20 15:00:09,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 15:00:09,020 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-07-20 15:00:09,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 15:00:09,027 INFO L225 Difference]: With dead ends: 835 [2020-07-20 15:00:09,027 INFO L226 Difference]: Without dead ends: 574 [2020-07-20 15:00:09,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 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 15:00:09,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-07-20 15:00:09,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 523. [2020-07-20 15:00:09,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2020-07-20 15:00:09,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 714 transitions. [2020-07-20 15:00:09,086 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 714 transitions. Word has length 91 [2020-07-20 15:00:09,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 15:00:09,086 INFO L479 AbstractCegarLoop]: Abstraction has 523 states and 714 transitions. [2020-07-20 15:00:09,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 15:00:09,087 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 714 transitions. [2020-07-20 15:00:09,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-20 15:00:09,088 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:09,088 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 15:00:09,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:09,302 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:09,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:09,303 INFO L82 PathProgramCache]: Analyzing trace with hash 2107195379, now seen corresponding path program 1 times [2020-07-20 15:00:09,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:09,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1340158028] [2020-07-20 15:00:09,305 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 15:00:09,409 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 15:00:09,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 15:00:09,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 15:00:09,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 15:00:09,451 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 15:00:09,451 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 15:00:09,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1340158028] [2020-07-20 15:00:09,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 15:00:09,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 15:00:09,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987915858] [2020-07-20 15:00:09,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 15:00:09,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 15:00:09,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 15:00:09,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 15:00:09,454 INFO L87 Difference]: Start difference. First operand 523 states and 714 transitions. Second operand 5 states. [2020-07-20 15:00:09,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 15:00:09,866 INFO L93 Difference]: Finished difference Result 1026 states and 1421 transitions. [2020-07-20 15:00:09,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 15:00:09,866 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-07-20 15:00:09,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 15:00:09,874 INFO L225 Difference]: With dead ends: 1026 [2020-07-20 15:00:09,883 INFO L226 Difference]: Without dead ends: 523 [2020-07-20 15:00:09,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 15:00:09,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-07-20 15:00:09,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2020-07-20 15:00:09,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2020-07-20 15:00:09,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 702 transitions. [2020-07-20 15:00:09,946 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 702 transitions. Word has length 91 [2020-07-20 15:00:09,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 15:00:09,947 INFO L479 AbstractCegarLoop]: Abstraction has 523 states and 702 transitions. [2020-07-20 15:00:09,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 15:00:09,948 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 702 transitions. [2020-07-20 15:00:09,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-20 15:00:09,950 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:09,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 15:00:10,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:10,164 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:10,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:10,165 INFO L82 PathProgramCache]: Analyzing trace with hash 381568563, now seen corresponding path program 1 times [2020-07-20 15:00:10,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:10,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [344129392] [2020-07-20 15:00:10,166 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 15:00:10,253 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 15:00:10,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 15:00:10,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 15:00:10,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 15:00:10,301 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 15:00:10,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 15:00:10,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [344129392] [2020-07-20 15:00:10,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 15:00:10,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 15:00:10,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273227219] [2020-07-20 15:00:10,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 15:00:10,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 15:00:10,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 15:00:10,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 15:00:10,303 INFO L87 Difference]: Start difference. First operand 523 states and 702 transitions. Second operand 5 states. [2020-07-20 15:00:10,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 15:00:10,753 INFO L93 Difference]: Finished difference Result 1026 states and 1397 transitions. [2020-07-20 15:00:10,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 15:00:10,753 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-07-20 15:00:10,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 15:00:10,757 INFO L225 Difference]: With dead ends: 1026 [2020-07-20 15:00:10,758 INFO L226 Difference]: Without dead ends: 523 [2020-07-20 15:00:10,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 15:00:10,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-07-20 15:00:10,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2020-07-20 15:00:10,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2020-07-20 15:00:10,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 690 transitions. [2020-07-20 15:00:10,795 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 690 transitions. Word has length 91 [2020-07-20 15:00:10,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 15:00:10,795 INFO L479 AbstractCegarLoop]: Abstraction has 523 states and 690 transitions. [2020-07-20 15:00:10,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 15:00:10,796 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 690 transitions. [2020-07-20 15:00:10,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-20 15:00:10,797 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:10,797 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 15:00:11,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:11,013 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:11,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:11,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1573255181, now seen corresponding path program 1 times [2020-07-20 15:00:11,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:11,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259479169] [2020-07-20 15:00:11,015 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 15:00:11,095 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 15:00:11,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 15:00:11,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 15:00:11,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 15:00:11,128 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 15:00:11,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 15:00:11,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259479169] [2020-07-20 15:00:11,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 15:00:11,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 15:00:11,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203066812] [2020-07-20 15:00:11,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 15:00:11,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 15:00:11,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 15:00:11,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 15:00:11,130 INFO L87 Difference]: Start difference. First operand 523 states and 690 transitions. Second operand 5 states. [2020-07-20 15:00:11,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 15:00:11,679 INFO L93 Difference]: Finished difference Result 1306 states and 1859 transitions. [2020-07-20 15:00:11,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 15:00:11,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-07-20 15:00:11,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 15:00:11,686 INFO L225 Difference]: With dead ends: 1306 [2020-07-20 15:00:11,686 INFO L226 Difference]: Without dead ends: 803 [2020-07-20 15:00:11,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 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 15:00:11,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2020-07-20 15:00:11,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 669. [2020-07-20 15:00:11,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2020-07-20 15:00:11,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 850 transitions. [2020-07-20 15:00:11,745 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 850 transitions. Word has length 91 [2020-07-20 15:00:11,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 15:00:11,746 INFO L479 AbstractCegarLoop]: Abstraction has 669 states and 850 transitions. [2020-07-20 15:00:11,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 15:00:11,746 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 850 transitions. [2020-07-20 15:00:11,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-20 15:00:11,747 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:11,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 15:00:11,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:11,965 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:11,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:11,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1097571891, now seen corresponding path program 1 times [2020-07-20 15:00:11,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:11,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2009197707] [2020-07-20 15:00:11,968 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 15:00:12,051 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 15:00:12,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 15:00:12,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 15:00:12,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 15:00:12,093 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 15:00:12,093 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 15:00:12,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2009197707] [2020-07-20 15:00:12,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 15:00:12,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 15:00:12,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789188285] [2020-07-20 15:00:12,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 15:00:12,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 15:00:12,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 15:00:12,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 15:00:12,098 INFO L87 Difference]: Start difference. First operand 669 states and 850 transitions. Second operand 6 states. [2020-07-20 15:00:12,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 15:00:12,172 INFO L93 Difference]: Finished difference Result 1353 states and 1752 transitions. [2020-07-20 15:00:12,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 15:00:12,172 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2020-07-20 15:00:12,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 15:00:12,178 INFO L225 Difference]: With dead ends: 1353 [2020-07-20 15:00:12,179 INFO L226 Difference]: Without dead ends: 705 [2020-07-20 15:00:12,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 86 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 15:00:12,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2020-07-20 15:00:12,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 701. [2020-07-20 15:00:12,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 701 states. [2020-07-20 15:00:12,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 882 transitions. [2020-07-20 15:00:12,227 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 882 transitions. Word has length 91 [2020-07-20 15:00:12,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 15:00:12,229 INFO L479 AbstractCegarLoop]: Abstraction has 701 states and 882 transitions. [2020-07-20 15:00:12,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 15:00:12,230 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 882 transitions. [2020-07-20 15:00:12,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-20 15:00:12,232 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:12,232 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 15:00:12,446 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:12,447 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:12,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:12,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1659055375, now seen corresponding path program 1 times [2020-07-20 15:00:12,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:12,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107816484] [2020-07-20 15:00:12,449 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 15:00:12,521 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 15:00:12,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 15:00:12,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 15:00:12,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 15:00:12,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 15:00:12,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 15:00:12,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107816484] [2020-07-20 15:00:12,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 15:00:12,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 15:00:12,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130356559] [2020-07-20 15:00:12,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 15:00:12,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 15:00:12,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 15:00:12,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 15:00:12,578 INFO L87 Difference]: Start difference. First operand 701 states and 882 transitions. Second operand 6 states. [2020-07-20 15:00:12,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 15:00:12,643 INFO L93 Difference]: Finished difference Result 1475 states and 1917 transitions. [2020-07-20 15:00:12,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 15:00:12,644 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2020-07-20 15:00:12,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 15:00:12,649 INFO L225 Difference]: With dead ends: 1475 [2020-07-20 15:00:12,649 INFO L226 Difference]: Without dead ends: 795 [2020-07-20 15:00:12,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 86 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 15:00:12,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2020-07-20 15:00:12,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 745. [2020-07-20 15:00:12,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2020-07-20 15:00:12,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 928 transitions. [2020-07-20 15:00:12,696 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 928 transitions. Word has length 91 [2020-07-20 15:00:12,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 15:00:12,697 INFO L479 AbstractCegarLoop]: Abstraction has 745 states and 928 transitions. [2020-07-20 15:00:12,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 15:00:12,697 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 928 transitions. [2020-07-20 15:00:12,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-20 15:00:12,699 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:12,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 15:00:12,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:12,913 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:12,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:12,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1738518643, now seen corresponding path program 1 times [2020-07-20 15:00:12,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:12,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092861097] [2020-07-20 15:00:12,914 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 15:00:12,994 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 15:00:12,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 15:00:12,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 15:00:12,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 15:00:13,031 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 15:00:13,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 15:00:13,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2092861097] [2020-07-20 15:00:13,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 15:00:13,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 15:00:13,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691644786] [2020-07-20 15:00:13,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 15:00:13,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 15:00:13,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 15:00:13,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 15:00:13,034 INFO L87 Difference]: Start difference. First operand 745 states and 928 transitions. Second operand 5 states. [2020-07-20 15:00:13,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 15:00:13,618 INFO L93 Difference]: Finished difference Result 1704 states and 2285 transitions. [2020-07-20 15:00:13,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 15:00:13,619 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-07-20 15:00:13,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 15:00:13,626 INFO L225 Difference]: With dead ends: 1704 [2020-07-20 15:00:13,626 INFO L226 Difference]: Without dead ends: 979 [2020-07-20 15:00:13,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 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 15:00:13,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2020-07-20 15:00:13,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 782. [2020-07-20 15:00:13,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2020-07-20 15:00:13,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 944 transitions. [2020-07-20 15:00:13,698 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 944 transitions. Word has length 91 [2020-07-20 15:00:13,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 15:00:13,699 INFO L479 AbstractCegarLoop]: Abstraction has 782 states and 944 transitions. [2020-07-20 15:00:13,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 15:00:13,699 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 944 transitions. [2020-07-20 15:00:13,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-20 15:00:13,701 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:13,701 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 15:00:13,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:13,916 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:13,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:13,916 INFO L82 PathProgramCache]: Analyzing trace with hash -633220619, now seen corresponding path program 1 times [2020-07-20 15:00:13,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:13,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1832643174] [2020-07-20 15:00:13,917 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 15:00:13,996 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 15:00:13,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 15:00:13,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 15:00:14,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 15:00:14,031 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 15:00:14,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 15:00:14,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1832643174] [2020-07-20 15:00:14,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 15:00:14,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 15:00:14,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528743939] [2020-07-20 15:00:14,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 15:00:14,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 15:00:14,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 15:00:14,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 15:00:14,033 INFO L87 Difference]: Start difference. First operand 782 states and 944 transitions. Second operand 3 states. [2020-07-20 15:00:14,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 15:00:14,127 INFO L93 Difference]: Finished difference Result 2282 states and 2821 transitions. [2020-07-20 15:00:14,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 15:00:14,128 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2020-07-20 15:00:14,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 15:00:14,137 INFO L225 Difference]: With dead ends: 2282 [2020-07-20 15:00:14,137 INFO L226 Difference]: Without dead ends: 1521 [2020-07-20 15:00:14,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 15:00:14,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2020-07-20 15:00:14,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1513. [2020-07-20 15:00:14,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1513 states. [2020-07-20 15:00:14,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 1827 transitions. [2020-07-20 15:00:14,242 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 1827 transitions. Word has length 91 [2020-07-20 15:00:14,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 15:00:14,243 INFO L479 AbstractCegarLoop]: Abstraction has 1513 states and 1827 transitions. [2020-07-20 15:00:14,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 15:00:14,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 1827 transitions. [2020-07-20 15:00:14,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-20 15:00:14,245 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:14,246 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 15:00:14,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:14,460 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:14,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:14,461 INFO L82 PathProgramCache]: Analyzing trace with hash -839431381, now seen corresponding path program 1 times [2020-07-20 15:00:14,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:14,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67277338] [2020-07-20 15:00:14,462 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 15:00:14,524 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 15:00:14,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 15:00:14,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 15:00:14,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 15:00:14,546 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 15:00:14,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 15:00:14,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [67277338] [2020-07-20 15:00:14,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 15:00:14,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 15:00:14,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956928455] [2020-07-20 15:00:14,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 15:00:14,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 15:00:14,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 15:00:14,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 15:00:14,549 INFO L87 Difference]: Start difference. First operand 1513 states and 1827 transitions. Second operand 3 states. [2020-07-20 15:00:14,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 15:00:14,728 INFO L93 Difference]: Finished difference Result 4449 states and 5522 transitions. [2020-07-20 15:00:14,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 15:00:14,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-07-20 15:00:14,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 15:00:14,747 INFO L225 Difference]: With dead ends: 4449 [2020-07-20 15:00:14,747 INFO L226 Difference]: Without dead ends: 2958 [2020-07-20 15:00:14,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 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 15:00:14,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2020-07-20 15:00:14,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 2958. [2020-07-20 15:00:14,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2958 states. [2020-07-20 15:00:14,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2958 states to 2958 states and 3654 transitions. [2020-07-20 15:00:14,921 INFO L78 Accepts]: Start accepts. Automaton has 2958 states and 3654 transitions. Word has length 111 [2020-07-20 15:00:14,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 15:00:14,921 INFO L479 AbstractCegarLoop]: Abstraction has 2958 states and 3654 transitions. [2020-07-20 15:00:14,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 15:00:14,922 INFO L276 IsEmpty]: Start isEmpty. Operand 2958 states and 3654 transitions. [2020-07-20 15:00:14,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-20 15:00:14,927 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:14,927 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 15:00:15,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:15,142 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:15,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:15,142 INFO L82 PathProgramCache]: Analyzing trace with hash 224148281, now seen corresponding path program 1 times [2020-07-20 15:00:15,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:15,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770649420] [2020-07-20 15:00:15,143 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:15,220 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 15:00:15,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 15:00:15,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 15:00:15,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 15:00:15,253 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 15:00:15,254 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 15:00:15,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1770649420] [2020-07-20 15:00:15,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 15:00:15,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 15:00:15,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38090323] [2020-07-20 15:00:15,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 15:00:15,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 15:00:15,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 15:00:15,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 15:00:15,256 INFO L87 Difference]: Start difference. First operand 2958 states and 3654 transitions. Second operand 3 states. [2020-07-20 15:00:15,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 15:00:15,428 INFO L93 Difference]: Finished difference Result 4443 states and 5660 transitions. [2020-07-20 15:00:15,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 15:00:15,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2020-07-20 15:00:15,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 15:00:15,445 INFO L225 Difference]: With dead ends: 4443 [2020-07-20 15:00:15,445 INFO L226 Difference]: Without dead ends: 2958 [2020-07-20 15:00:15,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 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 15:00:15,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2020-07-20 15:00:15,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 2949. [2020-07-20 15:00:15,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2949 states. [2020-07-20 15:00:15,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2949 states to 2949 states and 3605 transitions. [2020-07-20 15:00:15,639 INFO L78 Accepts]: Start accepts. Automaton has 2949 states and 3605 transitions. Word has length 154 [2020-07-20 15:00:15,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 15:00:15,640 INFO L479 AbstractCegarLoop]: Abstraction has 2949 states and 3605 transitions. [2020-07-20 15:00:15,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 15:00:15,641 INFO L276 IsEmpty]: Start isEmpty. Operand 2949 states and 3605 transitions. [2020-07-20 15:00:15,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-07-20 15:00:15,649 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:15,649 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2020-07-20 15:00:15,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:15,860 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:15,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:15,860 INFO L82 PathProgramCache]: Analyzing trace with hash 348885943, now seen corresponding path program 1 times [2020-07-20 15:00:15,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:15,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258754806] [2020-07-20 15:00:15,861 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:15,927 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 15:00:15,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 15:00:15,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 15:00:15,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 15:00:15,968 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-20 15:00:15,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 15:00:15,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1258754806] [2020-07-20 15:00:15,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 15:00:15,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 15:00:15,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674748570] [2020-07-20 15:00:15,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 15:00:15,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 15:00:15,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 15:00:15,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 15:00:15,971 INFO L87 Difference]: Start difference. First operand 2949 states and 3605 transitions. Second operand 3 states. [2020-07-20 15:00:16,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 15:00:16,145 INFO L93 Difference]: Finished difference Result 5877 states and 7249 transitions. [2020-07-20 15:00:16,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 15:00:16,145 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2020-07-20 15:00:16,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 15:00:16,167 INFO L225 Difference]: With dead ends: 5877 [2020-07-20 15:00:16,168 INFO L226 Difference]: Without dead ends: 2955 [2020-07-20 15:00:16,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 196 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 15:00:16,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2955 states. [2020-07-20 15:00:16,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2955 to 2949. [2020-07-20 15:00:16,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2949 states. [2020-07-20 15:00:16,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2949 states to 2949 states and 3547 transitions. [2020-07-20 15:00:16,404 INFO L78 Accepts]: Start accepts. Automaton has 2949 states and 3547 transitions. Word has length 198 [2020-07-20 15:00:16,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 15:00:16,405 INFO L479 AbstractCegarLoop]: Abstraction has 2949 states and 3547 transitions. [2020-07-20 15:00:16,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 15:00:16,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2949 states and 3547 transitions. [2020-07-20 15:00:16,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-20 15:00:16,412 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:16,412 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 15:00:16,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:16,626 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:16,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:16,626 INFO L82 PathProgramCache]: Analyzing trace with hash 2022431165, now seen corresponding path program 1 times [2020-07-20 15:00:16,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:16,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921404182] [2020-07-20 15:00:16,627 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:16,722 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 15:00:16,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 15:00:16,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 15:00:16,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 15:00:16,762 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-20 15:00:16,762 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 15:00:16,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921404182] [2020-07-20 15:00:16,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 15:00:16,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 15:00:16,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990586859] [2020-07-20 15:00:16,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 15:00:16,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 15:00:16,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 15:00:16,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 15:00:16,764 INFO L87 Difference]: Start difference. First operand 2949 states and 3547 transitions. Second operand 6 states. [2020-07-20 15:00:16,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 15:00:16,958 INFO L93 Difference]: Finished difference Result 5211 states and 6362 transitions. [2020-07-20 15:00:16,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 15:00:16,959 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2020-07-20 15:00:16,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 15:00:16,970 INFO L225 Difference]: With dead ends: 5211 [2020-07-20 15:00:16,971 INFO L226 Difference]: Without dead ends: 2283 [2020-07-20 15:00:16,978 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 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 15:00:16,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2283 states. [2020-07-20 15:00:17,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2283 to 2283. [2020-07-20 15:00:17,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2283 states. [2020-07-20 15:00:17,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 2671 transitions. [2020-07-20 15:00:17,113 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 2671 transitions. Word has length 155 [2020-07-20 15:00:17,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 15:00:17,114 INFO L479 AbstractCegarLoop]: Abstraction has 2283 states and 2671 transitions. [2020-07-20 15:00:17,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 15:00:17,114 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 2671 transitions. [2020-07-20 15:00:17,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-20 15:00:17,118 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:17,119 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 15:00:17,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:17,333 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:17,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:17,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1178118941, now seen corresponding path program 1 times [2020-07-20 15:00:17,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:17,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1398540359] [2020-07-20 15:00:17,334 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:17,409 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 15:00:17,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 15:00:17,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 15:00:17,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 15:00:17,447 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 15:00:17,447 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 15:00:17,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1398540359] [2020-07-20 15:00:17,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 15:00:17,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 15:00:17,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541080107] [2020-07-20 15:00:17,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 15:00:17,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 15:00:17,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 15:00:17,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 15:00:17,457 INFO L87 Difference]: Start difference. First operand 2283 states and 2671 transitions. Second operand 3 states. [2020-07-20 15:00:17,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 15:00:17,629 INFO L93 Difference]: Finished difference Result 6119 states and 7325 transitions. [2020-07-20 15:00:17,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 15:00:17,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2020-07-20 15:00:17,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 15:00:17,651 INFO L225 Difference]: With dead ends: 6119 [2020-07-20 15:00:17,651 INFO L226 Difference]: Without dead ends: 3858 [2020-07-20 15:00:17,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 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 15:00:17,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2020-07-20 15:00:17,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 3852. [2020-07-20 15:00:17,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3852 states. [2020-07-20 15:00:17,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3852 states to 3852 states and 4549 transitions. [2020-07-20 15:00:17,912 INFO L78 Accepts]: Start accepts. Automaton has 3852 states and 4549 transitions. Word has length 155 [2020-07-20 15:00:17,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 15:00:17,913 INFO L479 AbstractCegarLoop]: Abstraction has 3852 states and 4549 transitions. [2020-07-20 15:00:17,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 15:00:17,913 INFO L276 IsEmpty]: Start isEmpty. Operand 3852 states and 4549 transitions. [2020-07-20 15:00:17,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-20 15:00:17,918 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:17,920 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 15:00:18,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:18,134 INFO L427 AbstractCegarLoop]: === Iteration 17 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:18,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:18,135 INFO L82 PathProgramCache]: Analyzing trace with hash -390866386, now seen corresponding path program 1 times [2020-07-20 15:00:18,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:18,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754030592] [2020-07-20 15:00:18,136 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:18,297 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 15:00:18,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 15:00:18,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 15:00:18,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 15:00:18,382 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 29 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-20 15:00:18,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 15:00:18,616 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-07-20 15:00:18,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1754030592] [2020-07-20 15:00:18,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 15:00:18,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2020-07-20 15:00:18,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749035983] [2020-07-20 15:00:18,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 15:00:18,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 15:00:18,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 15:00:18,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 15:00:18,625 INFO L87 Difference]: Start difference. First operand 3852 states and 4549 transitions. Second operand 5 states. [2020-07-20 15:00:19,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 15:00:19,480 INFO L93 Difference]: Finished difference Result 11302 states and 13676 transitions. [2020-07-20 15:00:19,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 15:00:19,480 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-07-20 15:00:19,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 15:00:19,528 INFO L225 Difference]: With dead ends: 11302 [2020-07-20 15:00:19,528 INFO L226 Difference]: Without dead ends: 6447 [2020-07-20 15:00:19,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 302 SyntacticMatches, 5 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 15:00:19,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6447 states. [2020-07-20 15:00:19,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6447 to 5644. [2020-07-20 15:00:19,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5644 states. [2020-07-20 15:00:19,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5644 states to 5644 states and 6829 transitions. [2020-07-20 15:00:19,879 INFO L78 Accepts]: Start accepts. Automaton has 5644 states and 6829 transitions. Word has length 156 [2020-07-20 15:00:19,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 15:00:19,880 INFO L479 AbstractCegarLoop]: Abstraction has 5644 states and 6829 transitions. [2020-07-20 15:00:19,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 15:00:19,880 INFO L276 IsEmpty]: Start isEmpty. Operand 5644 states and 6829 transitions. [2020-07-20 15:00:19,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-07-20 15:00:19,889 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:19,889 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 15:00:20,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:20,103 INFO L427 AbstractCegarLoop]: === Iteration 18 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:20,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:20,104 INFO L82 PathProgramCache]: Analyzing trace with hash 754503995, now seen corresponding path program 1 times [2020-07-20 15:00:20,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:20,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069255603] [2020-07-20 15:00:20,104 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:20,195 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 15:00:20,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 15:00:20,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 15:00:20,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 15:00:20,306 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-07-20 15:00:20,306 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 15:00:20,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1069255603] [2020-07-20 15:00:20,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 15:00:20,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 15:00:20,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036782778] [2020-07-20 15:00:20,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 15:00:20,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 15:00:20,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 15:00:20,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 15:00:20,308 INFO L87 Difference]: Start difference. First operand 5644 states and 6829 transitions. Second operand 3 states. [2020-07-20 15:00:20,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 15:00:20,533 INFO L93 Difference]: Finished difference Result 11391 states and 14050 transitions. [2020-07-20 15:00:20,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 15:00:20,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 206 [2020-07-20 15:00:20,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 15:00:20,549 INFO L225 Difference]: With dead ends: 11391 [2020-07-20 15:00:20,549 INFO L226 Difference]: Without dead ends: 2876 [2020-07-20 15:00:20,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 204 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 15:00:20,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2876 states. [2020-07-20 15:00:20,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2876 to 2748. [2020-07-20 15:00:20,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2748 states. [2020-07-20 15:00:20,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2748 states to 2748 states and 3157 transitions. [2020-07-20 15:00:20,731 INFO L78 Accepts]: Start accepts. Automaton has 2748 states and 3157 transitions. Word has length 206 [2020-07-20 15:00:20,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 15:00:20,732 INFO L479 AbstractCegarLoop]: Abstraction has 2748 states and 3157 transitions. [2020-07-20 15:00:20,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 15:00:20,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2748 states and 3157 transitions. [2020-07-20 15:00:20,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-07-20 15:00:20,737 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:20,737 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 15:00:20,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:20,951 INFO L427 AbstractCegarLoop]: === Iteration 19 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:20,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:20,951 INFO L82 PathProgramCache]: Analyzing trace with hash -2107522944, now seen corresponding path program 1 times [2020-07-20 15:00:20,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:20,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1705772378] [2020-07-20 15:00:20,952 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:21,071 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 15:00:21,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 15:00:21,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 15:00:21,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 15:00:21,116 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-20 15:00:21,117 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 15:00:21,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1705772378] [2020-07-20 15:00:21,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 15:00:21,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 15:00:21,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462556111] [2020-07-20 15:00:21,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 15:00:21,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 15:00:21,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 15:00:21,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 15:00:21,119 INFO L87 Difference]: Start difference. First operand 2748 states and 3157 transitions. Second operand 3 states. [2020-07-20 15:00:21,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 15:00:21,279 INFO L93 Difference]: Finished difference Result 4956 states and 5778 transitions. [2020-07-20 15:00:21,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 15:00:21,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2020-07-20 15:00:21,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 15:00:21,290 INFO L225 Difference]: With dead ends: 4956 [2020-07-20 15:00:21,291 INFO L226 Difference]: Without dead ends: 2748 [2020-07-20 15:00:21,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 205 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 15:00:21,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2020-07-20 15:00:21,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 2748. [2020-07-20 15:00:21,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2748 states. [2020-07-20 15:00:21,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2748 states to 2748 states and 3137 transitions. [2020-07-20 15:00:21,453 INFO L78 Accepts]: Start accepts. Automaton has 2748 states and 3137 transitions. Word has length 207 [2020-07-20 15:00:21,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 15:00:21,454 INFO L479 AbstractCegarLoop]: Abstraction has 2748 states and 3137 transitions. [2020-07-20 15:00:21,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 15:00:21,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2748 states and 3137 transitions. [2020-07-20 15:00:21,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-07-20 15:00:21,459 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:21,459 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 15:00:21,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:21,674 INFO L427 AbstractCegarLoop]: === Iteration 20 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:21,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:21,674 INFO L82 PathProgramCache]: Analyzing trace with hash 89354437, now seen corresponding path program 1 times [2020-07-20 15:00:21,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:21,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956467784] [2020-07-20 15:00:21,675 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:21,795 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 15:00:21,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 15:00:21,796 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 15:00:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 15:00:21,849 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 15:00:22,153 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 15:00:22,153 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 15:00:22,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:22,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 03:00:22 BoogieIcfgContainer [2020-07-20 15:00:22,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 15:00:22,573 INFO L168 Benchmark]: Toolchain (without parser) took 17627.67 ms. Allocated memory was 145.8 MB in the beginning and 554.2 MB in the end (delta: 408.4 MB). Free memory was 103.5 MB in the beginning and 241.2 MB in the end (delta: -137.7 MB). Peak memory consumption was 270.8 MB. Max. memory is 7.1 GB. [2020-07-20 15:00:22,574 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 15:00:22,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 499.16 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 103.3 MB in the beginning and 178.6 MB in the end (delta: -75.3 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2020-07-20 15:00:22,575 INFO L168 Benchmark]: Boogie Preprocessor took 55.37 ms. Allocated memory is still 202.9 MB. Free memory was 178.6 MB in the beginning and 176.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-07-20 15:00:22,575 INFO L168 Benchmark]: RCFGBuilder took 653.69 ms. Allocated memory is still 202.9 MB. Free memory was 176.5 MB in the beginning and 140.4 MB in the end (delta: 36.1 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB. [2020-07-20 15:00:22,576 INFO L168 Benchmark]: TraceAbstraction took 16410.80 ms. Allocated memory was 202.9 MB in the beginning and 554.2 MB in the end (delta: 351.3 MB). Free memory was 139.7 MB in the beginning and 241.2 MB in the end (delta: -101.5 MB). Peak memory consumption was 249.8 MB. Max. memory is 7.1 GB. [2020-07-20 15:00:22,578 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 499.16 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 103.3 MB in the beginning and 178.6 MB in the end (delta: -75.3 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 55.37 ms. Allocated memory is still 202.9 MB. Free memory was 178.6 MB in the beginning and 176.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 653.69 ms. Allocated memory is still 202.9 MB. Free memory was 176.5 MB in the beginning and 140.4 MB in the end (delta: 36.1 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16410.80 ms. Allocated memory was 202.9 MB in the beginning and 554.2 MB in the end (delta: 351.3 MB). Free memory was 139.7 MB in the beginning and 241.2 MB in the end (delta: -101.5 MB). Peak memory consumption was 249.8 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 t2_pc = 0; [L18] int m_st ; [L19] int t1_st ; [L20] int t2_st ; [L21] int m_i ; [L22] int t1_i ; [L23] int t2_i ; [L24] int M_E = 2; [L25] int T1_E = 2; [L26] int T2_E = 2; [L27] int E_1 = 2; [L28] int E_2 = 2; VAL [\old(E_1)=15, \old(E_2)=4, \old(M_E)=6, \old(m_i)=3, \old(m_pc)=7, \old(m_st)=8, \old(T1_E)=14, \old(t1_i)=11, \old(t1_pc)=13, \old(t1_st)=12, \old(T2_E)=10, \old(t2_i)=9, \old(t2_pc)=16, \old(t2_st)=5, E_1=2, E_2=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, T2_E=2, t2_i=0, t2_pc=0, t2_st=0] [L563] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=0, t2_pc=0, t2_st=0] [L567] CALL init_model() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=0, t2_pc=0, t2_st=0] [L477] m_i = 1 [L478] t1_i = 1 [L479] t2_i = 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L567] RET init_model() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L568] CALL start_simulation() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L504] int kernel_st ; [L505] int tmp ; [L506] int tmp___0 ; [L510] kernel_st = 0 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L511] FCALL update_channels() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L512] CALL init_threads() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L211] COND TRUE m_i == 1 [L212] m_st = 0 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L216] COND TRUE t1_i == 1 [L217] t1_st = 0 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L221] COND TRUE t2_i == 1 [L222] t2_st = 0 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L512] RET init_threads() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L513] CALL fire_delta_events() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L324] COND FALSE !(M_E == 0) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L329] COND FALSE !(T1_E == 0) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L334] COND FALSE !(T2_E == 0) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L339] COND FALSE !(E_1 == 0) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L344] COND FALSE !(E_2 == 0) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L513] RET fire_delta_events() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L514] CALL activate_threads() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L387] int tmp ; [L388] int tmp___0 ; [L389] int tmp___1 ; VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L393] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L143] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L146] COND FALSE !(m_pc == 1) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L156] __retres1 = 0 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, __retres1=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L158] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, \result=0, __retres1=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L393] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L393] tmp = is_master_triggered() [L395] COND FALSE !(\read(tmp)) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=0] [L401] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L162] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L165] COND FALSE !(t1_pc == 1) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L175] __retres1 = 0 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, __retres1=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L177] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, \result=0, __retres1=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L401] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=0] [L401] tmp___0 = is_transmit1_triggered() [L403] COND FALSE !(\read(tmp___0)) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=0, tmp___0=0] [L409] CALL, EXPR is_transmit2_triggered() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L181] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L184] COND FALSE !(t2_pc == 1) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L194] __retres1 = 0 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, __retres1=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L196] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, \result=0, __retres1=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L409] RET, EXPR is_transmit2_triggered() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, is_transmit2_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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=0, tmp___0=0] [L409] tmp___1 = is_transmit2_triggered() [L411] COND FALSE !(\read(tmp___1)) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=0, tmp___0=0, tmp___1=0] [L514] RET activate_threads() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L515] CALL reset_delta_events() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L357] COND FALSE !(M_E == 1) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L362] COND FALSE !(T1_E == 1) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L367] COND FALSE !(T2_E == 1) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L372] COND FALSE !(E_1 == 1) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L377] COND FALSE !(E_2 == 1) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L515] RET reset_delta_events() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L518] COND TRUE 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L521] kernel_st = 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L522] CALL eval() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L257] int tmp ; VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L261] COND TRUE 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L264] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L231] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L234] COND TRUE m_st == 0 [L235] __retres1 = 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, __retres1=1, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L252] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, \result=1, __retres1=1, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L264] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L264] tmp = exists_runnable_thread() [L266] COND TRUE \read(tmp) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1] [L271] COND TRUE m_st == 0 [L272] int tmp_ndt_1; [L273] tmp_ndt_1 = __VERIFIER_nondet_int() [L274] COND FALSE !(\read(tmp_ndt_1)) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1, tmp_ndt_1=0] [L285] COND TRUE t1_st == 0 [L286] int tmp_ndt_2; [L287] tmp_ndt_2 = __VERIFIER_nondet_int() [L288] COND TRUE \read(tmp_ndt_2) [L290] t1_st = 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1, tmp_ndt_1=0, tmp_ndt_2=1] [L291] CALL transmit1() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L78] COND TRUE t1_pc == 0 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L89] COND TRUE 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L91] t1_pc = 1 [L92] t1_st = 2 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L291] RET transmit1() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1, tmp_ndt_1=0, tmp_ndt_2=1] [L299] COND TRUE t2_st == 0 [L300] int tmp_ndt_3; [L301] tmp_ndt_3 = __VERIFIER_nondet_int() [L302] COND TRUE \read(tmp_ndt_3) [L304] t2_st = 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=1, tmp=1, tmp_ndt_1=0, tmp_ndt_2=1, tmp_ndt_3=1] [L305] CALL transmit2() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=1, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=1] [L113] COND TRUE t2_pc == 0 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=1, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=1] [L124] COND TRUE 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=1, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=0, t2_st=1] [L126] t2_pc = 1 [L127] t2_st = 2 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=1, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L305] RET transmit2() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=1, tmp_ndt_3=1] [L261] COND TRUE 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=1, tmp_ndt_3=1] [L264] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L231] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L234] COND TRUE m_st == 0 [L235] __retres1 = 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, __retres1=1, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L252] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, \result=1, __retres1=1, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L264] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=1, tmp_ndt_3=1] [L264] tmp = exists_runnable_thread() [L266] COND TRUE \read(tmp) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=1, tmp_ndt_3=1] [L271] COND TRUE m_st == 0 [L272] int tmp_ndt_1; [L273] tmp_ndt_1 = __VERIFIER_nondet_int() [L274] COND TRUE \read(tmp_ndt_1) [L276] m_st = 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=1, tmp_ndt_3=1] [L277] CALL master() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L37] COND TRUE m_pc == 0 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L48] COND TRUE 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L51] E_1 = 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L52] CALL immediate_notify() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L425] CALL activate_threads() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L387] int tmp ; [L388] int tmp___0 ; [L389] int tmp___1 ; VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L393] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L143] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L146] COND FALSE !(m_pc == 1) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L156] __retres1 = 0 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, __retres1=0, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L158] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, \result=0, __retres1=0, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L393] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, 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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L393] tmp = is_master_triggered() [L395] COND FALSE !(\read(tmp)) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0] [L401] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L162] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L165] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L166] COND TRUE E_1 == 1 [L167] __retres1 = 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, __retres1=1, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L177] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, \result=1, __retres1=1, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L401] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, 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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0] [L401] tmp___0 = is_transmit1_triggered() [L403] COND TRUE \read(tmp___0) [L404] t1_st = 0 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0, tmp___0=1] [L409] CALL, EXPR is_transmit2_triggered() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L181] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L184] COND TRUE t2_pc == 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L185] COND FALSE !(E_2 == 1) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L194] __retres1 = 0 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, __retres1=0, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L196] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, \result=0, __retres1=0, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L409] RET, EXPR is_transmit2_triggered() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, is_transmit2_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=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0, tmp___0=1] [L409] tmp___1 = is_transmit2_triggered() [L411] COND FALSE !(\read(tmp___1)) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0, tmp___0=1, tmp___1=0] [L425] RET activate_threads() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L52] RET immediate_notify() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L53] E_1 = 2 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L56] COND TRUE 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L58] m_pc = 1 [L59] m_st = 2 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L277] RET master() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=1, tmp_ndt_3=1] [L285] COND TRUE t1_st == 0 [L286] int tmp_ndt_2; [L287] tmp_ndt_2 = __VERIFIER_nondet_int() [L288] COND TRUE \read(tmp_ndt_2) [L290] t1_st = 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=1, tmp_ndt_3=1] [L291] CALL transmit1() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L78] COND FALSE !(t1_pc == 0) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L81] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L97] E_2 = 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L98] CALL immediate_notify() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L425] CALL activate_threads() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L387] int tmp ; [L388] int tmp___0 ; [L389] int tmp___1 ; VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L393] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L143] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L146] COND TRUE m_pc == 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L147] COND FALSE !(M_E == 1) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L156] __retres1 = 0 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, __retres1=0, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L158] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, \result=0, __retres1=0, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L393] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, is_master_triggered()=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L393] tmp = is_master_triggered() [L395] COND FALSE !(\read(tmp)) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0] [L401] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L162] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L165] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L166] COND FALSE !(E_1 == 1) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L175] __retres1 = 0 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, __retres1=0, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L177] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, \result=0, __retres1=0, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L401] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, is_transmit1_triggered()=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0] [L401] tmp___0 = is_transmit1_triggered() [L403] COND FALSE !(\read(tmp___0)) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0, tmp___0=0] [L409] CALL, EXPR is_transmit2_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L181] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L184] COND TRUE t2_pc == 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L185] COND TRUE E_2 == 1 [L186] __retres1 = 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, __retres1=1, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L196] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, \result=1, __retres1=1, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L409] RET, EXPR is_transmit2_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, is_transmit2_triggered()=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0, tmp___0=0] [L409] tmp___1 = is_transmit2_triggered() [L411] COND TRUE \read(tmp___1) [L412] t2_st = 0 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=0, tmp=0, tmp___0=0, tmp___1=1] [L425] RET activate_threads() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=0] [L98] RET immediate_notify() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=0] [L99] E_2 = 2 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=0] [L89] COND TRUE 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=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, T2_E=2, t2_i=1, t2_pc=1, t2_st=0] [L91] t1_pc = 1 [L92] t1_st = 2 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=0] [L291] RET transmit1() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=0, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=1, tmp_ndt_3=1] [L299] COND TRUE t2_st == 0 [L300] int tmp_ndt_3; [L301] tmp_ndt_3 = __VERIFIER_nondet_int() [L302] COND TRUE \read(tmp_ndt_3) [L304] t2_st = 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=1, tmp_ndt_3=1] [L305] CALL transmit2() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=1, \old(t2_st)=1, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1] [L113] COND FALSE !(t2_pc == 0) VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=1, \old(t2_st)=1, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1] [L116] COND TRUE t2_pc == 1 VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=1, \old(t2_st)=1, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1] [L132] CALL error() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=1, \old(t2_st)=1, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1] [L11] __VERIFIER_error() VAL [\old(E_1)=2, \old(E_2)=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, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=1, \old(t2_st)=1, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 23 procedures, 169 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.1s, OverallIterations: 20, TraceHistogramMax: 3, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4686 SDtfs, 3580 SDslu, 4416 SDs, 0 SdLazy, 1831 SolverSat, 684 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2488 GetRequests, 2432 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5644occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 19 MinimizatonAttempts, 1402 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 2549 NumberOfCodeBlocks, 1714 NumberOfCodeBlocksAsserted, 53 NumberOfCheckSat, 2477 ConstructedInterpolants, 0 QuantifiedInterpolants, 494425 SizeOfPredicates, 24 NumberOfNonLiveVariables, 7461 ConjunctsInSsa, 114 ConjunctsInUnsatCore, 20 InterpolantComputations, 19 PerfectInterpolantSequences, 561/590 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...