/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/token_ring.01.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 17:21:53,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 17:21:53,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 17:21:53,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 17:21:53,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 17:21:53,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 17:21:53,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 17:21:53,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 17:21:53,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 17:21:53,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 17:21:53,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 17:21:53,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 17:21:53,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 17:21:53,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 17:21:53,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 17:21:53,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 17:21:53,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 17:21:53,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 17:21:53,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 17:21:53,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 17:21:53,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 17:21:53,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 17:21:53,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 17:21:53,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 17:21:53,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 17:21:53,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 17:21:53,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 17:21:53,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 17:21:53,757 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 [2020-07-21 17:21:53,772 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 17:21:53,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 17:21:53,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 17:21:53,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 17:21:53,774 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 17:21:53,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 17:21:53,774 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 17:21:53,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 17:21:53,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 17:21:53,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 17:21:53,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 17:21:53,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 17:21:53,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 17:21:53,775 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 17:21:53,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 17:21:53,776 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 17:21:53,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 17:21:53,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 17:21:53,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 17:21:53,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 17:21:53,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 17:21:53,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 17:21:53,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 17:21:53,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 17:21:53,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 17:21:53,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 17:21:53,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:21:53,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 17:21:53,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 17:21:53,779 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 17:21:54,047 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 17:21:54,060 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 17:21:54,063 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 17:21:54,065 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 17:21:54,065 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 17:21:54,066 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.01.cil-2.c [2020-07-21 17:21:54,127 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d4c299a9/9a559083ea7f4428a1aed47f133365e8/FLAGc195526e3 [2020-07-21 17:21:54,572 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 17:21:54,573 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.01.cil-2.c [2020-07-21 17:21:54,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d4c299a9/9a559083ea7f4428a1aed47f133365e8/FLAGc195526e3 [2020-07-21 17:21:54,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d4c299a9/9a559083ea7f4428a1aed47f133365e8 [2020-07-21 17:21:54,918 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 17:21:54,922 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 17:21:54,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 17:21:54,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 17:21:54,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 17:21:54,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:21:54" (1/1) ... [2020-07-21 17:21:54,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6695d105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:21:54, skipping insertion in model container [2020-07-21 17:21:54,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:21:54" (1/1) ... [2020-07-21 17:21:54,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 17:21:54,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 17:21:55,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 17:21:55,196 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 17:21:55,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 17:21:55,373 INFO L208 MainTranslator]: Completed translation [2020-07-21 17:21:55,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:21:55 WrapperNode [2020-07-21 17:21:55,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 17:21:55,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 17:21:55,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 17:21:55,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 17:21:55,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:21:55" (1/1) ... [2020-07-21 17:21:55,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:21:55" (1/1) ... [2020-07-21 17:21:55,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:21:55" (1/1) ... [2020-07-21 17:21:55,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:21:55" (1/1) ... [2020-07-21 17:21:55,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:21:55" (1/1) ... [2020-07-21 17:21:55,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:21:55" (1/1) ... [2020-07-21 17:21:55,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:21:55" (1/1) ... [2020-07-21 17:21:55,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 17:21:55,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 17:21:55,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 17:21:55,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 17:21:55,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:21:55" (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 [2020-07-21 17:21:55,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 17:21:55,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 17:21:55,482 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-07-21 17:21:55,482 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-07-21 17:21:55,482 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-07-21 17:21:55,482 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-07-21 17:21:55,482 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-07-21 17:21:55,483 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-07-21 17:21:55,483 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-07-21 17:21:55,483 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-07-21 17:21:55,484 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-07-21 17:21:55,484 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-07-21 17:21:55,484 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-07-21 17:21:55,484 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-07-21 17:21:55,484 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-07-21 17:21:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-07-21 17:21:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-07-21 17:21:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-07-21 17:21:55,486 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-07-21 17:21:55,486 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-07-21 17:21:55,486 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 17:21:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 17:21:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-07-21 17:21:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-07-21 17:21:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-07-21 17:21:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-07-21 17:21:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 17:21:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-07-21 17:21:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-07-21 17:21:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-07-21 17:21:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-07-21 17:21:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-07-21 17:21:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-07-21 17:21:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-07-21 17:21:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-07-21 17:21:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-07-21 17:21:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-07-21 17:21:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-07-21 17:21:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-07-21 17:21:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-07-21 17:21:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-07-21 17:21:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 17:21:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 17:21:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 17:21:55,994 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 17:21:55,994 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-21 17:21:56,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:21:56 BoogieIcfgContainer [2020-07-21 17:21:56,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 17:21:56,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 17:21:56,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 17:21:56,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 17:21:56,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:21:54" (1/3) ... [2020-07-21 17:21:56,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f954ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:21:56, skipping insertion in model container [2020-07-21 17:21:56,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:21:55" (2/3) ... [2020-07-21 17:21:56,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f954ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:21:56, skipping insertion in model container [2020-07-21 17:21:56,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:21:56" (3/3) ... [2020-07-21 17:21:56,008 INFO L109 eAbstractionObserver]: Analyzing ICFG token_ring.01.cil-2.c [2020-07-21 17:21:56,019 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 17:21:56,027 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 17:21:56,039 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 17:21:56,066 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 17:21:56,066 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 17:21:56,067 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 17:21:56,067 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 17:21:56,067 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 17:21:56,067 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 17:21:56,067 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 17:21:56,068 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 17:21:56,091 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2020-07-21 17:21:56,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-21 17:21:56,102 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:21:56,103 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:21:56,104 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:21:56,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:21:56,110 INFO L82 PathProgramCache]: Analyzing trace with hash -540085109, now seen corresponding path program 1 times [2020-07-21 17:21:56,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:21:56,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046011491] [2020-07-21 17:21:56,121 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 17:21:56,306 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:21:56,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:21:56,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 17:21:56,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:21:56,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:21:56,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:21:56,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2046011491] [2020-07-21 17:21:56,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:21:56,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:21:56,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190882633] [2020-07-21 17:21:56,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:21:56,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:21:56,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:21:56,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:21:56,441 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 3 states. [2020-07-21 17:21:56,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:21:56,547 INFO L93 Difference]: Finished difference Result 402 states and 576 transitions. [2020-07-21 17:21:56,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:21:56,550 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-07-21 17:21:56,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:21:56,566 INFO L225 Difference]: With dead ends: 402 [2020-07-21 17:21:56,567 INFO L226 Difference]: Without dead ends: 257 [2020-07-21 17:21:56,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:21:56,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-07-21 17:21:56,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 251. [2020-07-21 17:21:56,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-07-21 17:21:56,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 338 transitions. [2020-07-21 17:21:56,661 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 338 transitions. Word has length 78 [2020-07-21 17:21:56,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:21:56,662 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 338 transitions. [2020-07-21 17:21:56,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:21:56,662 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 338 transitions. [2020-07-21 17:21:56,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-21 17:21:56,667 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:21:56,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:21:56,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:21:56,883 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:21:56,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:21:56,884 INFO L82 PathProgramCache]: Analyzing trace with hash -16764438, now seen corresponding path program 1 times [2020-07-21 17:21:56,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:21:56,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [872950010] [2020-07-21 17:21:56,885 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 17:21:57,007 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:21:57,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:21:57,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 17:21:57,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:21:57,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:21:57,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:21:57,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [872950010] [2020-07-21 17:21:57,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:21:57,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 17:21:57,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34546171] [2020-07-21 17:21:57,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 17:21:57,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:21:57,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 17:21:57,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 17:21:57,064 INFO L87 Difference]: Start difference. First operand 251 states and 338 transitions. Second operand 5 states. [2020-07-21 17:21:57,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:21:57,576 INFO L93 Difference]: Finished difference Result 591 states and 839 transitions. [2020-07-21 17:21:57,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 17:21:57,577 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-07-21 17:21:57,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:21:57,583 INFO L225 Difference]: With dead ends: 591 [2020-07-21 17:21:57,584 INFO L226 Difference]: Without dead ends: 359 [2020-07-21 17:21:57,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 17:21:57,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-07-21 17:21:57,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 299. [2020-07-21 17:21:57,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-07-21 17:21:57,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 387 transitions. [2020-07-21 17:21:57,633 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 387 transitions. Word has length 78 [2020-07-21 17:21:57,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:21:57,633 INFO L479 AbstractCegarLoop]: Abstraction has 299 states and 387 transitions. [2020-07-21 17:21:57,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 17:21:57,634 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 387 transitions. [2020-07-21 17:21:57,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-21 17:21:57,636 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:21:57,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:21:57,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:21:57,851 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:21:57,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:21:57,851 INFO L82 PathProgramCache]: Analyzing trace with hash 999803178, now seen corresponding path program 1 times [2020-07-21 17:21:57,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:21:57,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659871382] [2020-07-21 17:21:57,852 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 17:21:57,979 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:21:57,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:21:57,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 17:21:57,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:21:58,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:21:58,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:21:58,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1659871382] [2020-07-21 17:21:58,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:21:58,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 17:21:58,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562188224] [2020-07-21 17:21:58,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 17:21:58,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:21:58,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 17:21:58,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 17:21:58,062 INFO L87 Difference]: Start difference. First operand 299 states and 387 transitions. Second operand 5 states. [2020-07-21 17:21:58,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:21:58,681 INFO L93 Difference]: Finished difference Result 889 states and 1176 transitions. [2020-07-21 17:21:58,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 17:21:58,683 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-07-21 17:21:58,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:21:58,689 INFO L225 Difference]: With dead ends: 889 [2020-07-21 17:21:58,689 INFO L226 Difference]: Without dead ends: 609 [2020-07-21 17:21:58,691 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 17:21:58,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2020-07-21 17:21:58,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 559. [2020-07-21 17:21:58,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-07-21 17:21:58,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 724 transitions. [2020-07-21 17:21:58,758 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 724 transitions. Word has length 78 [2020-07-21 17:21:58,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:21:58,760 INFO L479 AbstractCegarLoop]: Abstraction has 559 states and 724 transitions. [2020-07-21 17:21:58,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 17:21:58,760 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 724 transitions. [2020-07-21 17:21:58,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-21 17:21:58,769 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:21:58,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:21:58,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:21:58,973 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:21:58,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:21:58,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1751247338, now seen corresponding path program 1 times [2020-07-21 17:21:58,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:21:58,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335636163] [2020-07-21 17:21:58,976 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 17:21:59,072 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:21:59,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:21:59,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 17:21:59,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:21:59,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:21:59,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:21:59,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1335636163] [2020-07-21 17:21:59,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:21:59,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 17:21:59,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838055126] [2020-07-21 17:21:59,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 17:21:59,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:21:59,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 17:21:59,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 17:21:59,115 INFO L87 Difference]: Start difference. First operand 559 states and 724 transitions. Second operand 5 states. [2020-07-21 17:21:59,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:21:59,437 INFO L93 Difference]: Finished difference Result 1099 states and 1441 transitions. [2020-07-21 17:21:59,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 17:21:59,437 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-07-21 17:21:59,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:21:59,446 INFO L225 Difference]: With dead ends: 1099 [2020-07-21 17:21:59,446 INFO L226 Difference]: Without dead ends: 559 [2020-07-21 17:21:59,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 17:21:59,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-07-21 17:21:59,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2020-07-21 17:21:59,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-07-21 17:21:59,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 712 transitions. [2020-07-21 17:21:59,484 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 712 transitions. Word has length 78 [2020-07-21 17:21:59,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:21:59,485 INFO L479 AbstractCegarLoop]: Abstraction has 559 states and 712 transitions. [2020-07-21 17:21:59,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 17:21:59,485 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 712 transitions. [2020-07-21 17:21:59,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-21 17:21:59,486 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:21:59,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:21:59,701 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:21:59,702 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:21:59,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:21:59,702 INFO L82 PathProgramCache]: Analyzing trace with hash -579817174, now seen corresponding path program 1 times [2020-07-21 17:21:59,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:21:59,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771256018] [2020-07-21 17:21:59,703 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 17:21:59,779 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:21:59,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:21:59,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 17:21:59,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:21:59,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:21:59,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:21:59,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771256018] [2020-07-21 17:21:59,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:21:59,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 17:21:59,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92051452] [2020-07-21 17:21:59,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 17:21:59,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:21:59,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 17:21:59,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 17:21:59,822 INFO L87 Difference]: Start difference. First operand 559 states and 712 transitions. Second operand 5 states. [2020-07-21 17:22:00,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:00,284 INFO L93 Difference]: Finished difference Result 1248 states and 1670 transitions. [2020-07-21 17:22:00,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 17:22:00,285 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-07-21 17:22:00,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:00,290 INFO L225 Difference]: With dead ends: 1248 [2020-07-21 17:22:00,290 INFO L226 Difference]: Without dead ends: 708 [2020-07-21 17:22:00,292 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 17:22:00,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2020-07-21 17:22:00,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 613. [2020-07-21 17:22:00,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2020-07-21 17:22:00,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 754 transitions. [2020-07-21 17:22:00,334 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 754 transitions. Word has length 78 [2020-07-21 17:22:00,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:00,334 INFO L479 AbstractCegarLoop]: Abstraction has 613 states and 754 transitions. [2020-07-21 17:22:00,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 17:22:00,334 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 754 transitions. [2020-07-21 17:22:00,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-21 17:22:00,335 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:00,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:00,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:00,551 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:00,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:00,551 INFO L82 PathProgramCache]: Analyzing trace with hash -517777560, now seen corresponding path program 1 times [2020-07-21 17:22:00,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:00,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [419730673] [2020-07-21 17:22:00,552 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 17:22:00,624 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:00,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:00,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 17:22:00,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:00,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:22:00,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:00,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [419730673] [2020-07-21 17:22:00,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:00,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:00,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343024620] [2020-07-21 17:22:00,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:00,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:00,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:00,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:00,662 INFO L87 Difference]: Start difference. First operand 613 states and 754 transitions. Second operand 3 states. [2020-07-21 17:22:00,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:00,757 INFO L93 Difference]: Finished difference Result 1752 states and 2200 transitions. [2020-07-21 17:22:00,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:00,758 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-07-21 17:22:00,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:00,767 INFO L225 Difference]: With dead ends: 1752 [2020-07-21 17:22:00,767 INFO L226 Difference]: Without dead ends: 1159 [2020-07-21 17:22:00,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:00,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2020-07-21 17:22:00,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1155. [2020-07-21 17:22:00,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1155 states. [2020-07-21 17:22:00,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1402 transitions. [2020-07-21 17:22:00,866 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1402 transitions. Word has length 78 [2020-07-21 17:22:00,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:00,867 INFO L479 AbstractCegarLoop]: Abstraction has 1155 states and 1402 transitions. [2020-07-21 17:22:00,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:00,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1402 transitions. [2020-07-21 17:22:00,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-21 17:22:00,872 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:00,873 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:01,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:01,088 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:01,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:01,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1721781175, now seen corresponding path program 1 times [2020-07-21 17:22:01,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:01,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1943600561] [2020-07-21 17:22:01,091 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 17:22:01,197 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 17:22:01,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:01,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 17:22:01,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:01,239 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-07-21 17:22:01,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:01,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1943600561] [2020-07-21 17:22:01,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:01,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:01,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760173382] [2020-07-21 17:22:01,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:01,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:01,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:01,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:01,243 INFO L87 Difference]: Start difference. First operand 1155 states and 1402 transitions. Second operand 3 states. [2020-07-21 17:22:01,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:01,352 INFO L93 Difference]: Finished difference Result 3125 states and 3890 transitions. [2020-07-21 17:22:01,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:01,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2020-07-21 17:22:01,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:01,366 INFO L225 Difference]: With dead ends: 3125 [2020-07-21 17:22:01,366 INFO L226 Difference]: Without dead ends: 1991 [2020-07-21 17:22:01,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:01,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2020-07-21 17:22:01,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1991. [2020-07-21 17:22:01,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1991 states. [2020-07-21 17:22:01,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 2437 transitions. [2020-07-21 17:22:01,488 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 2437 transitions. Word has length 123 [2020-07-21 17:22:01,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:01,489 INFO L479 AbstractCegarLoop]: Abstraction has 1991 states and 2437 transitions. [2020-07-21 17:22:01,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:01,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 2437 transitions. [2020-07-21 17:22:01,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-07-21 17:22:01,495 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:01,495 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:01,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:01,709 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:01,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:01,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1056509960, now seen corresponding path program 1 times [2020-07-21 17:22:01,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:01,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [7833014] [2020-07-21 17:22:01,710 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 17:22:01,800 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 17:22:01,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:01,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 17:22:01,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:01,879 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-07-21 17:22:01,880 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:01,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [7833014] [2020-07-21 17:22:01,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:01,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 17:22:01,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083942073] [2020-07-21 17:22:01,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 17:22:01,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:01,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 17:22:01,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 17:22:01,882 INFO L87 Difference]: Start difference. First operand 1991 states and 2437 transitions. Second operand 6 states. [2020-07-21 17:22:01,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:01,997 INFO L93 Difference]: Finished difference Result 3325 states and 4128 transitions. [2020-07-21 17:22:01,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 17:22:01,997 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2020-07-21 17:22:01,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:02,005 INFO L225 Difference]: With dead ends: 3325 [2020-07-21 17:22:02,005 INFO L226 Difference]: Without dead ends: 1354 [2020-07-21 17:22:02,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 17:22:02,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2020-07-21 17:22:02,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1354. [2020-07-21 17:22:02,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1354 states. [2020-07-21 17:22:02,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 1615 transitions. [2020-07-21 17:22:02,082 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 1615 transitions. Word has length 176 [2020-07-21 17:22:02,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:02,082 INFO L479 AbstractCegarLoop]: Abstraction has 1354 states and 1615 transitions. [2020-07-21 17:22:02,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 17:22:02,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 1615 transitions. [2020-07-21 17:22:02,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-07-21 17:22:02,086 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:02,086 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:02,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:02,302 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:02,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:02,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1415293445, now seen corresponding path program 1 times [2020-07-21 17:22:02,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:02,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801931569] [2020-07-21 17:22:02,305 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 17:22:02,428 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:02,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:02,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 17:22:02,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:02,470 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-21 17:22:02,471 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:02,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1801931569] [2020-07-21 17:22:02,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:02,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:02,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476428850] [2020-07-21 17:22:02,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:02,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:02,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:02,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:02,473 INFO L87 Difference]: Start difference. First operand 1354 states and 1615 transitions. Second operand 3 states. [2020-07-21 17:22:02,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:02,557 INFO L93 Difference]: Finished difference Result 2681 states and 3244 transitions. [2020-07-21 17:22:02,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:02,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2020-07-21 17:22:02,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:02,572 INFO L225 Difference]: With dead ends: 2681 [2020-07-21 17:22:02,572 INFO L226 Difference]: Without dead ends: 1348 [2020-07-21 17:22:02,578 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:02,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2020-07-21 17:22:02,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 1348. [2020-07-21 17:22:02,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1348 states. [2020-07-21 17:22:02,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1591 transitions. [2020-07-21 17:22:02,683 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1591 transitions. Word has length 176 [2020-07-21 17:22:02,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:02,686 INFO L479 AbstractCegarLoop]: Abstraction has 1348 states and 1591 transitions. [2020-07-21 17:22:02,686 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:02,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1591 transitions. [2020-07-21 17:22:02,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-21 17:22:02,690 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:02,691 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:02,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:02,905 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:02,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:02,905 INFO L82 PathProgramCache]: Analyzing trace with hash -816082443, now seen corresponding path program 1 times [2020-07-21 17:22:02,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:02,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1792328395] [2020-07-21 17:22:02,907 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 17:22:02,987 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 17:22:02,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:02,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 17:22:02,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:03,019 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-07-21 17:22:03,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:03,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1792328395] [2020-07-21 17:22:03,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:03,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:03,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226020599] [2020-07-21 17:22:03,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:03,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:03,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:03,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:03,022 INFO L87 Difference]: Start difference. First operand 1348 states and 1591 transitions. Second operand 3 states. [2020-07-21 17:22:03,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:03,128 INFO L93 Difference]: Finished difference Result 3717 states and 4485 transitions. [2020-07-21 17:22:03,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:03,129 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-07-21 17:22:03,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:03,142 INFO L225 Difference]: With dead ends: 3717 [2020-07-21 17:22:03,142 INFO L226 Difference]: Without dead ends: 2390 [2020-07-21 17:22:03,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:03,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2020-07-21 17:22:03,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2386. [2020-07-21 17:22:03,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2386 states. [2020-07-21 17:22:03,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2386 states to 2386 states and 2833 transitions. [2020-07-21 17:22:03,264 INFO L78 Accepts]: Start accepts. Automaton has 2386 states and 2833 transitions. Word has length 177 [2020-07-21 17:22:03,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:03,265 INFO L479 AbstractCegarLoop]: Abstraction has 2386 states and 2833 transitions. [2020-07-21 17:22:03,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:03,265 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states and 2833 transitions. [2020-07-21 17:22:03,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-21 17:22:03,270 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:03,270 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:03,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:03,484 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:03,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:03,484 INFO L82 PathProgramCache]: Analyzing trace with hash 238051798, now seen corresponding path program 1 times [2020-07-21 17:22:03,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:03,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505951175] [2020-07-21 17:22:03,485 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 17:22:03,609 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:03,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:03,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 17:22:03,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:03,641 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-21 17:22:03,642 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:03,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1505951175] [2020-07-21 17:22:03,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:03,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:03,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760067596] [2020-07-21 17:22:03,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:03,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:03,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:03,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:03,644 INFO L87 Difference]: Start difference. First operand 2386 states and 2833 transitions. Second operand 3 states. [2020-07-21 17:22:03,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:03,744 INFO L93 Difference]: Finished difference Result 3938 states and 4848 transitions. [2020-07-21 17:22:03,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:03,744 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-07-21 17:22:03,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:03,758 INFO L225 Difference]: With dead ends: 3938 [2020-07-21 17:22:03,759 INFO L226 Difference]: Without dead ends: 2378 [2020-07-21 17:22:03,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:03,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2378 states. [2020-07-21 17:22:03,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2378 to 2378. [2020-07-21 17:22:03,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2378 states. [2020-07-21 17:22:03,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2378 states to 2378 states and 2783 transitions. [2020-07-21 17:22:03,881 INFO L78 Accepts]: Start accepts. Automaton has 2378 states and 2783 transitions. Word has length 177 [2020-07-21 17:22:03,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:03,882 INFO L479 AbstractCegarLoop]: Abstraction has 2378 states and 2783 transitions. [2020-07-21 17:22:03,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:03,882 INFO L276 IsEmpty]: Start isEmpty. Operand 2378 states and 2783 transitions. [2020-07-21 17:22:03,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-21 17:22:03,887 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:03,887 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:04,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:04,102 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:04,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:04,102 INFO L82 PathProgramCache]: Analyzing trace with hash -2021189918, now seen corresponding path program 1 times [2020-07-21 17:22:04,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:04,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663057828] [2020-07-21 17:22:04,103 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 17:22:04,213 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:04,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:04,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 17:22:04,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:04,269 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-07-21 17:22:04,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:04,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1663057828] [2020-07-21 17:22:04,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:04,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 17:22:04,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522576019] [2020-07-21 17:22:04,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 17:22:04,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:04,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 17:22:04,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 17:22:04,273 INFO L87 Difference]: Start difference. First operand 2378 states and 2783 transitions. Second operand 6 states. [2020-07-21 17:22:04,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:04,389 INFO L93 Difference]: Finished difference Result 3777 states and 4469 transitions. [2020-07-21 17:22:04,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 17:22:04,389 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 178 [2020-07-21 17:22:04,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:04,395 INFO L225 Difference]: With dead ends: 3777 [2020-07-21 17:22:04,395 INFO L226 Difference]: Without dead ends: 911 [2020-07-21 17:22:04,402 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 17:22:04,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-07-21 17:22:04,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 911. [2020-07-21 17:22:04,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 911 states. [2020-07-21 17:22:04,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1030 transitions. [2020-07-21 17:22:04,451 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1030 transitions. Word has length 178 [2020-07-21 17:22:04,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:04,453 INFO L479 AbstractCegarLoop]: Abstraction has 911 states and 1030 transitions. [2020-07-21 17:22:04,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 17:22:04,453 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1030 transitions. [2020-07-21 17:22:04,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-21 17:22:04,456 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:04,457 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:04,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:04,671 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:04,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:04,672 INFO L82 PathProgramCache]: Analyzing trace with hash 2053123678, now seen corresponding path program 1 times [2020-07-21 17:22:04,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:04,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231161221] [2020-07-21 17:22:04,672 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 17:22:04,793 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:04,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:04,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-21 17:22:04,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:04,883 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 53 proven. 23 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 17:22:04,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 17:22:05,147 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-21 17:22:05,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231161221] [2020-07-21 17:22:05,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 17:22:05,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2020-07-21 17:22:05,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156307066] [2020-07-21 17:22:05,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 17:22:05,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:05,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 17:22:05,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-21 17:22:05,150 INFO L87 Difference]: Start difference. First operand 911 states and 1030 transitions. Second operand 6 states. [2020-07-21 17:22:05,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:05,601 INFO L93 Difference]: Finished difference Result 937 states and 1063 transitions. [2020-07-21 17:22:05,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 17:22:05,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 178 [2020-07-21 17:22:05,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:05,608 INFO L225 Difference]: With dead ends: 937 [2020-07-21 17:22:05,608 INFO L226 Difference]: Without dead ends: 934 [2020-07-21 17:22:05,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-07-21 17:22:05,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2020-07-21 17:22:05,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 928. [2020-07-21 17:22:05,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 928 states. [2020-07-21 17:22:05,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1051 transitions. [2020-07-21 17:22:05,658 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1051 transitions. Word has length 178 [2020-07-21 17:22:05,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:05,658 INFO L479 AbstractCegarLoop]: Abstraction has 928 states and 1051 transitions. [2020-07-21 17:22:05,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 17:22:05,658 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1051 transitions. [2020-07-21 17:22:05,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-21 17:22:05,661 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:05,661 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:05,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:05,875 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:05,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:05,875 INFO L82 PathProgramCache]: Analyzing trace with hash 5197958, now seen corresponding path program 1 times [2020-07-21 17:22:05,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:05,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568875319] [2020-07-21 17:22:05,876 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 17:22:05,982 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:05,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:05,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 17:22:05,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:06,011 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-07-21 17:22:06,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:06,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568875319] [2020-07-21 17:22:06,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:06,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:06,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606824032] [2020-07-21 17:22:06,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:06,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:06,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:06,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:06,013 INFO L87 Difference]: Start difference. First operand 928 states and 1051 transitions. Second operand 3 states. [2020-07-21 17:22:06,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:06,062 INFO L93 Difference]: Finished difference Result 1501 states and 1713 transitions. [2020-07-21 17:22:06,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:06,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2020-07-21 17:22:06,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:06,068 INFO L225 Difference]: With dead ends: 1501 [2020-07-21 17:22:06,068 INFO L226 Difference]: Without dead ends: 942 [2020-07-21 17:22:06,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:06,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2020-07-21 17:22:06,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 942. [2020-07-21 17:22:06,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 942 states. [2020-07-21 17:22:06,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1067 transitions. [2020-07-21 17:22:06,124 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1067 transitions. Word has length 182 [2020-07-21 17:22:06,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:06,124 INFO L479 AbstractCegarLoop]: Abstraction has 942 states and 1067 transitions. [2020-07-21 17:22:06,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:06,125 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1067 transitions. [2020-07-21 17:22:06,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-07-21 17:22:06,128 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:06,129 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:06,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:06,343 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:06,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:06,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1390323253, now seen corresponding path program 1 times [2020-07-21 17:22:06,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:06,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050455351] [2020-07-21 17:22:06,344 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 17:22:06,457 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:06,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 17:22:06,457 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 17:22:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 17:22:06,502 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 17:22:06,674 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 17:22:06,674 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 17:22:06,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:07,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:22:07 BoogieIcfgContainer [2020-07-21 17:22:07,097 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 17:22:07,099 INFO L168 Benchmark]: Toolchain (without parser) took 12178.59 ms. Allocated memory was 137.4 MB in the beginning and 424.7 MB in the end (delta: 287.3 MB). Free memory was 102.2 MB in the beginning and 106.2 MB in the end (delta: -3.9 MB). Peak memory consumption was 283.4 MB. Max. memory is 7.1 GB. [2020-07-21 17:22:07,100 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 17:22:07,100 INFO L168 Benchmark]: CACSL2BoogieTranslator took 451.42 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 101.8 MB in the beginning and 180.2 MB in the end (delta: -78.4 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2020-07-21 17:22:07,101 INFO L168 Benchmark]: Boogie Preprocessor took 45.11 ms. Allocated memory is still 201.3 MB. Free memory was 180.2 MB in the beginning and 177.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-07-21 17:22:07,102 INFO L168 Benchmark]: RCFGBuilder took 580.37 ms. Allocated memory is still 201.3 MB. Free memory was 177.6 MB in the beginning and 145.0 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. [2020-07-21 17:22:07,102 INFO L168 Benchmark]: TraceAbstraction took 11094.84 ms. Allocated memory was 201.3 MB in the beginning and 424.7 MB in the end (delta: 223.3 MB). Free memory was 144.3 MB in the beginning and 106.2 MB in the end (delta: 38.2 MB). Peak memory consumption was 261.5 MB. Max. memory is 7.1 GB. [2020-07-21 17:22:07,105 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 451.42 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 101.8 MB in the beginning and 180.2 MB in the end (delta: -78.4 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.11 ms. Allocated memory is still 201.3 MB. Free memory was 180.2 MB in the beginning and 177.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 580.37 ms. Allocated memory is still 201.3 MB. Free memory was 177.6 MB in the beginning and 145.0 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11094.84 ms. Allocated memory was 201.3 MB in the beginning and 424.7 MB in the end (delta: 223.3 MB). Free memory was 144.3 MB in the beginning and 106.2 MB in the end (delta: 38.2 MB). Peak memory consumption was 261.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int m_pc = 0; [L15] int t1_pc = 0; [L16] int m_st ; [L17] int t1_st ; [L18] int m_i ; [L19] int t1_i ; [L20] int M_E = 2; [L21] int T1_E = 2; [L22] int E_M = 2; [L23] int E_1 = 2; [L27] int token ; [L29] int local ; VAL [\old(E_1)=8, \old(E_M)=9, \old(local)=13, \old(M_E)=14, \old(m_i)=15, \old(m_pc)=10, \old(m_st)=4, \old(T1_E)=12, \old(t1_i)=6, \old(t1_pc)=3, \old(t1_st)=7, \old(token)=11, E_1=2, E_M=2, local=0, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, token=0] [L475] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, token=0] [L479] CALL init_model() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, token=0] [L390] m_i = 1 [L391] t1_i = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L479] RET init_model() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L480] CALL start_simulation() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L416] int kernel_st ; [L417] int tmp ; [L418] int tmp___0 ; [L422] kernel_st = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L423] FCALL update_channels() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L424] CALL init_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L172] COND TRUE m_i == 1 [L173] m_st = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L177] COND TRUE t1_i == 1 [L178] t1_st = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L424] RET init_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L425] CALL fire_delta_events() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L261] COND FALSE !(M_E == 0) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L266] COND FALSE !(T1_E == 0) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L271] COND FALSE !(E_M == 0) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L276] COND FALSE !(E_1 == 0) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L425] RET fire_delta_events() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L426] CALL activate_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L314] int tmp ; [L315] int tmp___0 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L319] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L123] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L126] COND FALSE !(m_pc == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L136] __retres1 = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, __retres1=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L138] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, \result=0, __retres1=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L319] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, is_master_triggered()=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L319] tmp = is_master_triggered() [L321] COND FALSE !(\read(tmp)) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=0, token=0] [L327] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L142] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L145] COND FALSE !(t1_pc == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L155] __retres1 = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, __retres1=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L157] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, \result=0, __retres1=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L327] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, is_transmit1_triggered()=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=0, token=0] [L327] tmp___0 = is_transmit1_triggered() [L329] COND FALSE !(\read(tmp___0)) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=0, tmp___0=0, token=0] [L426] RET activate_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L427] CALL reset_delta_events() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L289] COND FALSE !(M_E == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L294] COND FALSE !(T1_E == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L299] COND FALSE !(E_M == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L304] COND FALSE !(E_1 == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L427] RET reset_delta_events() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L430] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L433] kernel_st = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=1, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L434] CALL eval() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L208] int tmp ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L212] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L215] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L187] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L190] COND TRUE m_st == 0 [L191] __retres1 = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, __retres1=1, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L203] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, \result=1, __retres1=1, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L215] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, exists_runnable_thread()=1, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L215] tmp = exists_runnable_thread() [L217] COND TRUE \read(tmp) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=1, token=0] [L222] COND TRUE m_st == 0 [L223] int tmp_ndt_1; [L224] tmp_ndt_1 = __VERIFIER_nondet_int() [L225] COND FALSE !(\read(tmp_ndt_1)) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=1, tmp_ndt_1=0, token=0] [L236] COND TRUE t1_st == 0 [L237] int tmp_ndt_2; [L238] tmp_ndt_2 = __VERIFIER_nondet_int() [L239] COND TRUE \read(tmp_ndt_2) [L241] t1_st = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, token=0] [L242] CALL transmit1() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, token=0] [L90] COND TRUE t1_pc == 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, token=0] [L101] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, token=0] [L103] t1_pc = 1 [L104] t1_st = 2 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L242] RET transmit1() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, token=0] [L212] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, token=0] [L215] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L187] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L190] COND TRUE m_st == 0 [L191] __retres1 = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, __retres1=1, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L203] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, \result=1, __retres1=1, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L215] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, exists_runnable_thread()=1, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, token=0] [L215] tmp = exists_runnable_thread() [L217] COND TRUE \read(tmp) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, token=0] [L222] COND TRUE m_st == 0 [L223] int tmp_ndt_1; [L224] tmp_ndt_1 = __VERIFIER_nondet_int() [L225] COND TRUE \read(tmp_ndt_1) [L227] m_st = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=1, tmp_ndt_2=-1, token=0] [L228] CALL master() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L32] int tmp_var = __VERIFIER_nondet_int(); [L34] COND TRUE m_pc == 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=0, token=0] [L45] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=0, token=0] [L48] token = __VERIFIER_nondet_int() [L49] local = token [L50] E_1 = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=0, token=-1] [L51] CALL immediate_notify() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L343] CALL activate_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L314] int tmp ; [L315] int tmp___0 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L319] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L123] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L126] COND FALSE !(m_pc == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L136] __retres1 = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, __retres1=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L138] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, \result=0, __retres1=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L319] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, is_master_triggered()=0, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L319] tmp = is_master_triggered() [L321] COND FALSE !(\read(tmp)) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=0, token=-1] [L327] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L142] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L145] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L146] COND TRUE E_1 == 1 [L147] __retres1 = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, __retres1=1, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L157] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, \result=1, __retres1=1, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L327] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, is_transmit1_triggered()=1, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=0, token=-1] [L327] tmp___0 = is_transmit1_triggered() [L329] COND TRUE \read(tmp___0) [L330] t1_st = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, tmp=0, tmp___0=1, token=-1] [L343] RET activate_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, token=-1] [L51] RET immediate_notify() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, tmp_var=0, token=-1] [L52] E_1 = 2 [L53] m_pc = 1 [L54] m_st = 2 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, tmp_var=0, token=-1] [L228] RET master() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, tmp=1, tmp_ndt_1=1, tmp_ndt_2=-1, token=-1] [L236] COND TRUE t1_st == 0 [L237] int tmp_ndt_2; [L238] tmp_ndt_2 = __VERIFIER_nondet_int() [L239] COND TRUE \read(tmp_ndt_2) [L241] t1_st = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, tmp=1, tmp_ndt_1=1, tmp_ndt_2=-1, token=-1] [L242] CALL transmit1() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=-1] [L90] COND FALSE !(t1_pc == 0) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=-1] [L93] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=-1] [L109] token += 1 [L110] E_M = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L111] CALL immediate_notify() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L343] CALL activate_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L314] int tmp ; [L315] int tmp___0 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L319] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L123] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L126] COND TRUE m_pc == 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L127] COND TRUE E_M == 1 [L128] __retres1 = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, __retres1=1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L138] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, \result=1, __retres1=1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L319] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, is_master_triggered()=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L319] tmp = is_master_triggered() [L321] COND TRUE \read(tmp) [L322] m_st = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, tmp=1, token=0] [L327] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L142] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L145] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L146] COND FALSE !(E_1 == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L155] __retres1 = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, __retres1=0, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L157] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, \result=0, __retres1=0, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L327] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, is_transmit1_triggered()=0, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, tmp=1, token=0] [L327] tmp___0 = is_transmit1_triggered() [L329] COND FALSE !(\read(tmp___0)) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, tmp=1, tmp___0=0, token=0] [L343] RET activate_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L111] RET immediate_notify() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L112] E_M = 2 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L101] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L103] t1_pc = 1 [L104] t1_st = 2 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L242] RET transmit1() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=1, tmp_ndt_2=-1, token=0] [L212] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=1, tmp_ndt_2=-1, token=0] [L215] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L187] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L190] COND TRUE m_st == 0 [L191] __retres1 = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, __retres1=1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L203] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, \result=1, __retres1=1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L215] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, exists_runnable_thread()=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=1, tmp_ndt_2=-1, token=0] [L215] tmp = exists_runnable_thread() [L217] COND TRUE \read(tmp) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=1, tmp_ndt_2=-1, token=0] [L222] COND TRUE m_st == 0 [L223] int tmp_ndt_1; [L224] tmp_ndt_1 = __VERIFIER_nondet_int() [L225] COND TRUE \read(tmp_ndt_1) [L227] m_st = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=1, tmp_ndt_2=-1, token=0] [L228] CALL master() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L32] int tmp_var = __VERIFIER_nondet_int(); [L34] COND FALSE !(m_pc == 0) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L37] COND TRUE m_pc == 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L59] COND FALSE !(token != local + 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L64] COND TRUE tmp_var <= 5 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L65] COND TRUE tmp_var >= 5 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L70] COND TRUE tmp_var <= 5 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L71] COND TRUE tmp_var >= 5 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L72] COND TRUE tmp_var == 5 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L73] CALL error() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L10] __VERIFIER_error() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 151 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.8s, OverallIterations: 15, TraceHistogramMax: 3, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3022 SDtfs, 2482 SDslu, 2942 SDs, 0 SdLazy, 1366 SolverSat, 613 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2009 GetRequests, 1966 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2386occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 14 MinimizatonAttempts, 225 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 2018 NumberOfCodeBlocks, 1781 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 1998 ConstructedInterpolants, 0 QuantifiedInterpolants, 408389 SizeOfPredicates, 22 NumberOfNonLiveVariables, 7329 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 15 InterpolantComputations, 14 PerfectInterpolantSequences, 862/885 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...