/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 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 14:37:15,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 14:37:15,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 14:37:15,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 14:37:15,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 14:37:15,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 14:37:15,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 14:37:15,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 14:37:15,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 14:37:15,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 14:37:15,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 14:37:15,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 14:37:15,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 14:37:15,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 14:37:15,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 14:37:15,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 14:37:15,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 14:37:15,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 14:37:15,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 14:37:15,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 14:37:15,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 14:37:15,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 14:37:15,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 14:37:15,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 14:37:15,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 14:37:15,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 14:37:15,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 14:37:15,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 14:37:15,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 14:37:15,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 14:37:15,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 14:37:15,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 14:37:15,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 14:37:15,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 14:37:15,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 14:37:15,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 14:37:15,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 14:37:15,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 14:37:15,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 14:37:15,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 14:37:15,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 14:37:15,723 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 14:37:15,738 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 14:37:15,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 14:37:15,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 14:37:15,740 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 14:37:15,740 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 14:37:15,740 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 14:37:15,741 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 14:37:15,741 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 14:37:15,741 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 14:37:15,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 14:37:15,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 14:37:15,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 14:37:15,742 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 14:37:15,742 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 14:37:15,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 14:37:15,742 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 14:37:15,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 14:37:15,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 14:37:15,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 14:37:15,743 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 14:37:15,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 14:37:15,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 14:37:15,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 14:37:15,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 14:37:15,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 14:37:15,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 14:37:15,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:37:15,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 14:37:15,745 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 14:37:15,745 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 14:37:16,051 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 14:37:16,065 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 14:37:16,068 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 14:37:16,070 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 14:37:16,070 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 14:37:16,071 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.01.cil-2.c [2020-07-21 14:37:16,151 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09ff5fc88/96e27517fac14e5b81b74aedb9fe2345/FLAGcc9f7106f [2020-07-21 14:37:16,697 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 14:37:16,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.01.cil-2.c [2020-07-21 14:37:16,716 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09ff5fc88/96e27517fac14e5b81b74aedb9fe2345/FLAGcc9f7106f [2020-07-21 14:37:17,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09ff5fc88/96e27517fac14e5b81b74aedb9fe2345 [2020-07-21 14:37:17,025 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 14:37:17,029 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 14:37:17,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 14:37:17,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 14:37:17,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 14:37:17,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:37:17" (1/1) ... [2020-07-21 14:37:17,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@259d2f6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:37:17, skipping insertion in model container [2020-07-21 14:37:17,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:37:17" (1/1) ... [2020-07-21 14:37:17,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 14:37:17,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 14:37:17,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 14:37:17,299 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 14:37:17,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 14:37:17,459 INFO L208 MainTranslator]: Completed translation [2020-07-21 14:37:17,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:37:17 WrapperNode [2020-07-21 14:37:17,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 14:37:17,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 14:37:17,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 14:37:17,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 14:37:17,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:37:17" (1/1) ... [2020-07-21 14:37:17,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:37:17" (1/1) ... [2020-07-21 14:37:17,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:37:17" (1/1) ... [2020-07-21 14:37:17,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:37:17" (1/1) ... [2020-07-21 14:37:17,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:37:17" (1/1) ... [2020-07-21 14:37:17,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:37:17" (1/1) ... [2020-07-21 14:37:17,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:37:17" (1/1) ... [2020-07-21 14:37:17,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 14:37:17,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 14:37:17,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 14:37:17,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 14:37:17,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:37:17" (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 14:37:17,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 14:37:17,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 14:37:17,583 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-07-21 14:37:17,584 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-07-21 14:37:17,584 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-07-21 14:37:17,585 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-07-21 14:37:17,585 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-07-21 14:37:17,585 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-07-21 14:37:17,585 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-07-21 14:37:17,585 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-07-21 14:37:17,585 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-07-21 14:37:17,586 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-07-21 14:37:17,586 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-07-21 14:37:17,586 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-07-21 14:37:17,586 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-07-21 14:37:17,586 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-07-21 14:37:17,586 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-07-21 14:37:17,586 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-07-21 14:37:17,586 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-07-21 14:37:17,587 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-07-21 14:37:17,587 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 14:37:17,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 14:37:17,587 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-07-21 14:37:17,587 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-07-21 14:37:17,588 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-07-21 14:37:17,588 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-07-21 14:37:17,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 14:37:17,588 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-07-21 14:37:17,589 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-07-21 14:37:17,589 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-07-21 14:37:17,589 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-07-21 14:37:17,589 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-07-21 14:37:17,589 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-07-21 14:37:17,590 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-07-21 14:37:17,590 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-07-21 14:37:17,590 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-07-21 14:37:17,590 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-07-21 14:37:17,590 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-07-21 14:37:17,590 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-07-21 14:37:17,591 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-07-21 14:37:17,591 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-07-21 14:37:17,591 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 14:37:17,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 14:37:17,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 14:37:18,083 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 14:37:18,083 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-21 14:37:18,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:37:18 BoogieIcfgContainer [2020-07-21 14:37:18,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 14:37:18,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 14:37:18,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 14:37:18,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 14:37:18,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 02:37:17" (1/3) ... [2020-07-21 14:37:18,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1547f002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:37:18, skipping insertion in model container [2020-07-21 14:37:18,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:37:17" (2/3) ... [2020-07-21 14:37:18,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1547f002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:37:18, skipping insertion in model container [2020-07-21 14:37:18,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:37:18" (3/3) ... [2020-07-21 14:37:18,099 INFO L109 eAbstractionObserver]: Analyzing ICFG token_ring.01.cil-2.c [2020-07-21 14:37:18,110 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 14:37:18,118 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 14:37:18,133 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 14:37:18,161 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 14:37:18,161 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 14:37:18,162 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 14:37:18,162 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 14:37:18,162 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 14:37:18,162 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 14:37:18,163 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 14:37:18,163 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 14:37:18,186 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2020-07-21 14:37:18,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-21 14:37:18,197 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:37:18,198 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 14:37:18,199 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:37:18,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:37:18,206 INFO L82 PathProgramCache]: Analyzing trace with hash -540085109, now seen corresponding path program 1 times [2020-07-21 14:37:18,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:37:18,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2032116447] [2020-07-21 14:37:18,214 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 14:37:18,404 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:37:18,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:37:18,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 14:37:18,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:37:18,511 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 14:37:18,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:37:18,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2032116447] [2020-07-21 14:37:18,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:37:18,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 14:37:18,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845358601] [2020-07-21 14:37:18,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 14:37:18,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:37:18,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 14:37:18,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 14:37:18,540 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 3 states. [2020-07-21 14:37:18,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:37:18,646 INFO L93 Difference]: Finished difference Result 402 states and 576 transitions. [2020-07-21 14:37:18,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 14:37:18,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-07-21 14:37:18,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:37:18,666 INFO L225 Difference]: With dead ends: 402 [2020-07-21 14:37:18,667 INFO L226 Difference]: Without dead ends: 257 [2020-07-21 14:37:18,672 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 14:37:18,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-07-21 14:37:18,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 251. [2020-07-21 14:37:18,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-07-21 14:37:18,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 338 transitions. [2020-07-21 14:37:18,784 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 338 transitions. Word has length 78 [2020-07-21 14:37:18,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:37:18,788 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 338 transitions. [2020-07-21 14:37:18,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 14:37:18,789 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 338 transitions. [2020-07-21 14:37:18,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-21 14:37:18,793 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:37:18,794 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 14:37:18,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:37:18,996 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:37:18,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:37:18,996 INFO L82 PathProgramCache]: Analyzing trace with hash -16764438, now seen corresponding path program 1 times [2020-07-21 14:37:18,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:37:18,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [692504240] [2020-07-21 14:37:18,998 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 14:37:19,152 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:37:19,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:37:19,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 14:37:19,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:37:19,249 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 14:37:19,250 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:37:19,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [692504240] [2020-07-21 14:37:19,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:37:19,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 14:37:19,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566845056] [2020-07-21 14:37:19,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 14:37:19,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:37:19,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 14:37:19,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:37:19,257 INFO L87 Difference]: Start difference. First operand 251 states and 338 transitions. Second operand 5 states. [2020-07-21 14:37:19,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:37:19,836 INFO L93 Difference]: Finished difference Result 591 states and 839 transitions. [2020-07-21 14:37:19,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 14:37:19,838 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-07-21 14:37:19,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:37:19,851 INFO L225 Difference]: With dead ends: 591 [2020-07-21 14:37:19,852 INFO L226 Difference]: Without dead ends: 359 [2020-07-21 14:37:19,861 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 14:37:19,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-07-21 14:37:19,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 299. [2020-07-21 14:37:19,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-07-21 14:37:19,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 387 transitions. [2020-07-21 14:37:19,956 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 387 transitions. Word has length 78 [2020-07-21 14:37:19,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:37:19,957 INFO L479 AbstractCegarLoop]: Abstraction has 299 states and 387 transitions. [2020-07-21 14:37:19,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 14:37:19,957 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 387 transitions. [2020-07-21 14:37:19,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-21 14:37:19,966 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:37:19,966 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 14:37:20,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:37:20,182 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:37:20,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:37:20,182 INFO L82 PathProgramCache]: Analyzing trace with hash 999803178, now seen corresponding path program 1 times [2020-07-21 14:37:20,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:37:20,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1170865091] [2020-07-21 14:37:20,183 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 14:37:20,315 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:37:20,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:37:20,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 14:37:20,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:37:20,396 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 14:37:20,396 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:37:20,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1170865091] [2020-07-21 14:37:20,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:37:20,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 14:37:20,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143691119] [2020-07-21 14:37:20,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 14:37:20,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:37:20,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 14:37:20,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:37:20,399 INFO L87 Difference]: Start difference. First operand 299 states and 387 transitions. Second operand 5 states. [2020-07-21 14:37:21,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:37:21,056 INFO L93 Difference]: Finished difference Result 889 states and 1176 transitions. [2020-07-21 14:37:21,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 14:37:21,057 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-07-21 14:37:21,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:37:21,062 INFO L225 Difference]: With dead ends: 889 [2020-07-21 14:37:21,063 INFO L226 Difference]: Without dead ends: 609 [2020-07-21 14:37:21,065 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 14:37:21,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2020-07-21 14:37:21,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 559. [2020-07-21 14:37:21,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-07-21 14:37:21,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 724 transitions. [2020-07-21 14:37:21,114 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 724 transitions. Word has length 78 [2020-07-21 14:37:21,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:37:21,115 INFO L479 AbstractCegarLoop]: Abstraction has 559 states and 724 transitions. [2020-07-21 14:37:21,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 14:37:21,115 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 724 transitions. [2020-07-21 14:37:21,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-21 14:37:21,116 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:37:21,117 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 14:37:21,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:37:21,331 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:37:21,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:37:21,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1751247338, now seen corresponding path program 1 times [2020-07-21 14:37:21,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:37:21,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097539396] [2020-07-21 14:37:21,333 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 14:37:21,422 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:37:21,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:37:21,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 14:37:21,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:37:21,461 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 14:37:21,461 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:37:21,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097539396] [2020-07-21 14:37:21,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:37:21,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 14:37:21,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553299366] [2020-07-21 14:37:21,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 14:37:21,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:37:21,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 14:37:21,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:37:21,464 INFO L87 Difference]: Start difference. First operand 559 states and 724 transitions. Second operand 5 states. [2020-07-21 14:37:21,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:37:21,837 INFO L93 Difference]: Finished difference Result 1099 states and 1441 transitions. [2020-07-21 14:37:21,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 14:37:21,838 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-07-21 14:37:21,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:37:21,843 INFO L225 Difference]: With dead ends: 1099 [2020-07-21 14:37:21,843 INFO L226 Difference]: Without dead ends: 559 [2020-07-21 14:37:21,846 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 14:37:21,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-07-21 14:37:21,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2020-07-21 14:37:21,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-07-21 14:37:21,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 712 transitions. [2020-07-21 14:37:21,887 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 712 transitions. Word has length 78 [2020-07-21 14:37:21,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:37:21,887 INFO L479 AbstractCegarLoop]: Abstraction has 559 states and 712 transitions. [2020-07-21 14:37:21,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 14:37:21,888 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 712 transitions. [2020-07-21 14:37:21,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-21 14:37:21,889 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:37:21,889 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 14:37:22,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:37:22,103 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:37:22,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:37:22,104 INFO L82 PathProgramCache]: Analyzing trace with hash -579817174, now seen corresponding path program 1 times [2020-07-21 14:37:22,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:37:22,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [836258546] [2020-07-21 14:37:22,106 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 14:37:22,185 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:37:22,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:37:22,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 14:37:22,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:37:22,235 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 14:37:22,235 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:37:22,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [836258546] [2020-07-21 14:37:22,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:37:22,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 14:37:22,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292798321] [2020-07-21 14:37:22,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 14:37:22,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:37:22,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 14:37:22,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:37:22,238 INFO L87 Difference]: Start difference. First operand 559 states and 712 transitions. Second operand 5 states. [2020-07-21 14:37:22,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:37:22,729 INFO L93 Difference]: Finished difference Result 1248 states and 1670 transitions. [2020-07-21 14:37:22,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 14:37:22,729 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-07-21 14:37:22,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:37:22,735 INFO L225 Difference]: With dead ends: 1248 [2020-07-21 14:37:22,735 INFO L226 Difference]: Without dead ends: 708 [2020-07-21 14:37:22,738 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 14:37:22,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2020-07-21 14:37:22,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 613. [2020-07-21 14:37:22,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2020-07-21 14:37:22,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 754 transitions. [2020-07-21 14:37:22,785 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 754 transitions. Word has length 78 [2020-07-21 14:37:22,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:37:22,786 INFO L479 AbstractCegarLoop]: Abstraction has 613 states and 754 transitions. [2020-07-21 14:37:22,786 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 14:37:22,786 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 754 transitions. [2020-07-21 14:37:22,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-21 14:37:22,787 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:37:22,787 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 14:37:23,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:37:23,002 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:37:23,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:37:23,002 INFO L82 PathProgramCache]: Analyzing trace with hash -517777560, now seen corresponding path program 1 times [2020-07-21 14:37:23,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:37:23,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [735487741] [2020-07-21 14:37:23,003 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 14:37:23,075 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:37:23,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:37:23,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 14:37:23,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:37:23,104 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 14:37:23,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:37:23,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [735487741] [2020-07-21 14:37:23,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:37:23,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 14:37:23,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398508102] [2020-07-21 14:37:23,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 14:37:23,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:37:23,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 14:37:23,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 14:37:23,106 INFO L87 Difference]: Start difference. First operand 613 states and 754 transitions. Second operand 3 states. [2020-07-21 14:37:23,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:37:23,190 INFO L93 Difference]: Finished difference Result 1752 states and 2200 transitions. [2020-07-21 14:37:23,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 14:37:23,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-07-21 14:37:23,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:37:23,199 INFO L225 Difference]: With dead ends: 1752 [2020-07-21 14:37:23,200 INFO L226 Difference]: Without dead ends: 1159 [2020-07-21 14:37:23,203 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 14:37:23,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2020-07-21 14:37:23,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1155. [2020-07-21 14:37:23,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1155 states. [2020-07-21 14:37:23,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1402 transitions. [2020-07-21 14:37:23,292 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1402 transitions. Word has length 78 [2020-07-21 14:37:23,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:37:23,292 INFO L479 AbstractCegarLoop]: Abstraction has 1155 states and 1402 transitions. [2020-07-21 14:37:23,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 14:37:23,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1402 transitions. [2020-07-21 14:37:23,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-21 14:37:23,295 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:37:23,295 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 14:37:23,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:37:23,511 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:37:23,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:37:23,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1721781175, now seen corresponding path program 1 times [2020-07-21 14:37:23,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:37:23,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119254868] [2020-07-21 14:37:23,514 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 14:37:23,594 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 14:37:23,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:37:23,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 14:37:23,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:37:23,625 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 14:37:23,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:37:23,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119254868] [2020-07-21 14:37:23,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:37:23,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 14:37:23,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893493826] [2020-07-21 14:37:23,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 14:37:23,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:37:23,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 14:37:23,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 14:37:23,628 INFO L87 Difference]: Start difference. First operand 1155 states and 1402 transitions. Second operand 3 states. [2020-07-21 14:37:23,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:37:23,772 INFO L93 Difference]: Finished difference Result 3125 states and 3890 transitions. [2020-07-21 14:37:23,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 14:37:23,772 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2020-07-21 14:37:23,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:37:23,791 INFO L225 Difference]: With dead ends: 3125 [2020-07-21 14:37:23,791 INFO L226 Difference]: Without dead ends: 1991 [2020-07-21 14:37:23,799 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 14:37:23,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2020-07-21 14:37:23,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1991. [2020-07-21 14:37:23,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1991 states. [2020-07-21 14:37:23,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 2437 transitions. [2020-07-21 14:37:23,941 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 2437 transitions. Word has length 123 [2020-07-21 14:37:23,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:37:23,942 INFO L479 AbstractCegarLoop]: Abstraction has 1991 states and 2437 transitions. [2020-07-21 14:37:23,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 14:37:23,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 2437 transitions. [2020-07-21 14:37:23,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-07-21 14:37:23,953 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:37:23,953 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 14:37:24,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:37:24,167 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:37:24,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:37:24,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1056509960, now seen corresponding path program 1 times [2020-07-21 14:37:24,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:37:24,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166459394] [2020-07-21 14:37:24,169 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 14:37:24,245 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 14:37:24,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:37:24,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 14:37:24,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:37:24,303 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-07-21 14:37:24,303 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:37:24,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166459394] [2020-07-21 14:37:24,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:37:24,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 14:37:24,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966201436] [2020-07-21 14:37:24,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 14:37:24,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:37:24,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 14:37:24,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 14:37:24,306 INFO L87 Difference]: Start difference. First operand 1991 states and 2437 transitions. Second operand 3 states. [2020-07-21 14:37:24,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:37:24,432 INFO L93 Difference]: Finished difference Result 3647 states and 4524 transitions. [2020-07-21 14:37:24,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 14:37:24,433 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2020-07-21 14:37:24,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:37:24,447 INFO L225 Difference]: With dead ends: 3647 [2020-07-21 14:37:24,447 INFO L226 Difference]: Without dead ends: 2095 [2020-07-21 14:37:24,454 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 14:37:24,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2095 states. [2020-07-21 14:37:24,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2095 to 1983. [2020-07-21 14:37:24,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1983 states. [2020-07-21 14:37:24,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1983 states to 1983 states and 2405 transitions. [2020-07-21 14:37:24,598 INFO L78 Accepts]: Start accepts. Automaton has 1983 states and 2405 transitions. Word has length 176 [2020-07-21 14:37:24,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:37:24,598 INFO L479 AbstractCegarLoop]: Abstraction has 1983 states and 2405 transitions. [2020-07-21 14:37:24,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 14:37:24,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1983 states and 2405 transitions. [2020-07-21 14:37:24,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-21 14:37:24,606 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:37:24,606 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, 3, 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 14:37:24,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:37:24,820 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:37:24,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:37:24,821 INFO L82 PathProgramCache]: Analyzing trace with hash 198643452, now seen corresponding path program 1 times [2020-07-21 14:37:24,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:37:24,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [685153853] [2020-07-21 14:37:24,822 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 14:37:24,950 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 14:37:24,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:37:24,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 14:37:24,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:37:25,011 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-07-21 14:37:25,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:37:25,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [685153853] [2020-07-21 14:37:25,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:37:25,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 14:37:25,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556870719] [2020-07-21 14:37:25,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 14:37:25,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:37:25,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 14:37:25,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 14:37:25,016 INFO L87 Difference]: Start difference. First operand 1983 states and 2405 transitions. Second operand 3 states. [2020-07-21 14:37:25,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:37:25,286 INFO L93 Difference]: Finished difference Result 5549 states and 6895 transitions. [2020-07-21 14:37:25,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 14:37:25,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-07-21 14:37:25,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:37:25,310 INFO L225 Difference]: With dead ends: 5549 [2020-07-21 14:37:25,310 INFO L226 Difference]: Without dead ends: 3593 [2020-07-21 14:37:25,320 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 14:37:25,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3593 states. [2020-07-21 14:37:25,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3593 to 3589. [2020-07-21 14:37:25,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3589 states. [2020-07-21 14:37:25,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3589 states to 3589 states and 4369 transitions. [2020-07-21 14:37:25,568 INFO L78 Accepts]: Start accepts. Automaton has 3589 states and 4369 transitions. Word has length 177 [2020-07-21 14:37:25,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:37:25,568 INFO L479 AbstractCegarLoop]: Abstraction has 3589 states and 4369 transitions. [2020-07-21 14:37:25,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 14:37:25,569 INFO L276 IsEmpty]: Start isEmpty. Operand 3589 states and 4369 transitions. [2020-07-21 14:37:25,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-21 14:37:25,577 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:37:25,578 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, 3, 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 14:37:25,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:37:25,793 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:37:25,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:37:25,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1601644905, now seen corresponding path program 1 times [2020-07-21 14:37:25,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:37:25,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [71021905] [2020-07-21 14:37:25,794 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 14:37:25,878 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 14:37:25,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:37:25,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 14:37:25,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:37:25,943 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 14:37:25,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:37:25,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [71021905] [2020-07-21 14:37:25,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:37:25,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 14:37:25,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540813413] [2020-07-21 14:37:25,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 14:37:25,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:37:25,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 14:37:25,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 14:37:25,946 INFO L87 Difference]: Start difference. First operand 3589 states and 4369 transitions. Second operand 3 states. [2020-07-21 14:37:26,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:37:26,147 INFO L93 Difference]: Finished difference Result 5645 states and 7062 transitions. [2020-07-21 14:37:26,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 14:37:26,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-07-21 14:37:26,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:37:26,180 INFO L225 Difference]: With dead ends: 5645 [2020-07-21 14:37:26,181 INFO L226 Difference]: Without dead ends: 3597 [2020-07-21 14:37:26,192 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 14:37:26,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3597 states. [2020-07-21 14:37:26,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3597 to 3589. [2020-07-21 14:37:26,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3589 states. [2020-07-21 14:37:26,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3589 states to 3589 states and 4325 transitions. [2020-07-21 14:37:26,490 INFO L78 Accepts]: Start accepts. Automaton has 3589 states and 4325 transitions. Word has length 177 [2020-07-21 14:37:26,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:37:26,491 INFO L479 AbstractCegarLoop]: Abstraction has 3589 states and 4325 transitions. [2020-07-21 14:37:26,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 14:37:26,491 INFO L276 IsEmpty]: Start isEmpty. Operand 3589 states and 4325 transitions. [2020-07-21 14:37:26,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-21 14:37:26,502 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:37:26,503 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, 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] [2020-07-21 14:37:26,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:37:26,718 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:37:26,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:37:26,719 INFO L82 PathProgramCache]: Analyzing trace with hash -2096306024, now seen corresponding path program 1 times [2020-07-21 14:37:26,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:37:26,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [793968825] [2020-07-21 14:37:26,719 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 14:37:26,813 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 14:37:26,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:37:26,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 14:37:26,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:37:26,896 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2020-07-21 14:37:26,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:37:26,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [793968825] [2020-07-21 14:37:26,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:37:26,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 14:37:26,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652569001] [2020-07-21 14:37:26,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 14:37:26,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:37:26,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 14:37:26,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 14:37:26,899 INFO L87 Difference]: Start difference. First operand 3589 states and 4325 transitions. Second operand 3 states. [2020-07-21 14:37:27,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:37:27,062 INFO L93 Difference]: Finished difference Result 6407 states and 7712 transitions. [2020-07-21 14:37:27,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 14:37:27,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-07-21 14:37:27,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:37:27,080 INFO L225 Difference]: With dead ends: 6407 [2020-07-21 14:37:27,080 INFO L226 Difference]: Without dead ends: 2842 [2020-07-21 14:37:27,092 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 14:37:27,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2020-07-21 14:37:27,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 2842. [2020-07-21 14:37:27,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2842 states. [2020-07-21 14:37:27,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2842 states to 2842 states and 3418 transitions. [2020-07-21 14:37:27,262 INFO L78 Accepts]: Start accepts. Automaton has 2842 states and 3418 transitions. Word has length 177 [2020-07-21 14:37:27,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:37:27,262 INFO L479 AbstractCegarLoop]: Abstraction has 2842 states and 3418 transitions. [2020-07-21 14:37:27,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 14:37:27,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2842 states and 3418 transitions. [2020-07-21 14:37:27,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-21 14:37:27,268 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:37:27,269 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, 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] [2020-07-21 14:37:27,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:37:27,482 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:37:27,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:37:27,482 INFO L82 PathProgramCache]: Analyzing trace with hash 794792086, now seen corresponding path program 1 times [2020-07-21 14:37:27,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:37:27,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730270849] [2020-07-21 14:37:27,483 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 14:37:27,566 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 14:37:27,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:37:27,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 14:37:27,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:37:27,635 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-07-21 14:37:27,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:37:27,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730270849] [2020-07-21 14:37:27,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:37:27,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 14:37:27,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010795940] [2020-07-21 14:37:27,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 14:37:27,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:37:27,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 14:37:27,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 14:37:27,638 INFO L87 Difference]: Start difference. First operand 2842 states and 3418 transitions. Second operand 6 states. [2020-07-21 14:37:27,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:37:27,828 INFO L93 Difference]: Finished difference Result 5204 states and 6396 transitions. [2020-07-21 14:37:27,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 14:37:27,828 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-07-21 14:37:27,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:37:27,843 INFO L225 Difference]: With dead ends: 5204 [2020-07-21 14:37:27,843 INFO L226 Difference]: Without dead ends: 2386 [2020-07-21 14:37:27,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 172 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 14:37:27,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2386 states. [2020-07-21 14:37:27,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2386 to 2386. [2020-07-21 14:37:27,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2386 states. [2020-07-21 14:37:27,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2386 states to 2386 states and 2805 transitions. [2020-07-21 14:37:27,985 INFO L78 Accepts]: Start accepts. Automaton has 2386 states and 2805 transitions. Word has length 177 [2020-07-21 14:37:27,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:37:27,985 INFO L479 AbstractCegarLoop]: Abstraction has 2386 states and 2805 transitions. [2020-07-21 14:37:27,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 14:37:27,986 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states and 2805 transitions. [2020-07-21 14:37:27,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-21 14:37:27,992 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:37:27,992 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 14:37:28,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:37:28,207 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:37:28,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:37:28,208 INFO L82 PathProgramCache]: Analyzing trace with hash 238051798, now seen corresponding path program 1 times [2020-07-21 14:37:28,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:37:28,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [807435929] [2020-07-21 14:37:28,209 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 14:37:28,385 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:37:28,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:37:28,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 14:37:28,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:37:28,461 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-07-21 14:37:28,461 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:37:28,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [807435929] [2020-07-21 14:37:28,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:37:28,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 14:37:28,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087282190] [2020-07-21 14:37:28,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 14:37:28,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:37:28,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 14:37:28,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 14:37:28,465 INFO L87 Difference]: Start difference. First operand 2386 states and 2805 transitions. Second operand 6 states. [2020-07-21 14:37:28,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:37:28,604 INFO L93 Difference]: Finished difference Result 3785 states and 4497 transitions. [2020-07-21 14:37:28,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 14:37:28,605 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-07-21 14:37:28,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:37:28,614 INFO L225 Difference]: With dead ends: 3785 [2020-07-21 14:37:28,614 INFO L226 Difference]: Without dead ends: 911 [2020-07-21 14:37:28,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 172 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 14:37:28,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-07-21 14:37:28,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 911. [2020-07-21 14:37:28,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 911 states. [2020-07-21 14:37:28,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1028 transitions. [2020-07-21 14:37:28,680 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1028 transitions. Word has length 177 [2020-07-21 14:37:28,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:37:28,681 INFO L479 AbstractCegarLoop]: Abstraction has 911 states and 1028 transitions. [2020-07-21 14:37:28,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 14:37:28,681 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1028 transitions. [2020-07-21 14:37:28,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-21 14:37:28,684 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:37:28,685 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:37:28,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:37:28,898 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:37:28,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:37:28,898 INFO L82 PathProgramCache]: Analyzing trace with hash -816293866, now seen corresponding path program 1 times [2020-07-21 14:37:28,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:37:28,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1456898576] [2020-07-21 14:37:28,899 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 14:37:29,026 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:37:29,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:37:29,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 14:37:29,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:37:29,143 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 14:37:29,144 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:37:29,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1456898576] [2020-07-21 14:37:29,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:37:29,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 14:37:29,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808397118] [2020-07-21 14:37:29,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 14:37:29,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:37:29,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 14:37:29,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 14:37:29,146 INFO L87 Difference]: Start difference. First operand 911 states and 1028 transitions. Second operand 3 states. [2020-07-21 14:37:29,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:37:29,212 INFO L93 Difference]: Finished difference Result 1624 states and 1866 transitions. [2020-07-21 14:37:29,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 14:37:29,212 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-07-21 14:37:29,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:37:29,220 INFO L225 Difference]: With dead ends: 1624 [2020-07-21 14:37:29,220 INFO L226 Difference]: Without dead ends: 911 [2020-07-21 14:37:29,223 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 14:37:29,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-07-21 14:37:29,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 911. [2020-07-21 14:37:29,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 911 states. [2020-07-21 14:37:29,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1020 transitions. [2020-07-21 14:37:29,279 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1020 transitions. Word has length 177 [2020-07-21 14:37:29,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:37:29,280 INFO L479 AbstractCegarLoop]: Abstraction has 911 states and 1020 transitions. [2020-07-21 14:37:29,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 14:37:29,281 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1020 transitions. [2020-07-21 14:37:29,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-21 14:37:29,284 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:37:29,284 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 14:37:29,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:37:29,498 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:37:29,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:37:29,498 INFO L82 PathProgramCache]: Analyzing trace with hash 2053123678, now seen corresponding path program 1 times [2020-07-21 14:37:29,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:37:29,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342632592] [2020-07-21 14:37:29,499 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 14:37:29,650 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:37:29,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:37:29,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-21 14:37:29,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:37:29,718 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 14:37:29,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 14:37:29,924 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 14:37:29,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342632592] [2020-07-21 14:37:29,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 14:37:29,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2020-07-21 14:37:29,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794051064] [2020-07-21 14:37:29,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 14:37:29,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:37:29,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 14:37:29,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-21 14:37:29,927 INFO L87 Difference]: Start difference. First operand 911 states and 1020 transitions. Second operand 6 states. [2020-07-21 14:37:30,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:37:30,498 INFO L93 Difference]: Finished difference Result 933 states and 1049 transitions. [2020-07-21 14:37:30,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 14:37:30,499 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 178 [2020-07-21 14:37:30,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:37:30,504 INFO L225 Difference]: With dead ends: 933 [2020-07-21 14:37:30,505 INFO L226 Difference]: Without dead ends: 930 [2020-07-21 14:37:30,506 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 14:37:30,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2020-07-21 14:37:30,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 928. [2020-07-21 14:37:30,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 928 states. [2020-07-21 14:37:30,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1041 transitions. [2020-07-21 14:37:30,561 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1041 transitions. Word has length 178 [2020-07-21 14:37:30,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:37:30,561 INFO L479 AbstractCegarLoop]: Abstraction has 928 states and 1041 transitions. [2020-07-21 14:37:30,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 14:37:30,561 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1041 transitions. [2020-07-21 14:37:30,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-21 14:37:30,564 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:37:30,565 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 14:37:30,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:37:30,781 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:37:30,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:37:30,782 INFO L82 PathProgramCache]: Analyzing trace with hash 5197958, now seen corresponding path program 1 times [2020-07-21 14:37:30,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:37:30,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [160843159] [2020-07-21 14:37:30,783 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:37:30,943 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:37:30,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:37:30,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 14:37:30,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:37:30,999 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 14:37:30,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:37:31,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [160843159] [2020-07-21 14:37:31,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:37:31,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 14:37:31,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474584964] [2020-07-21 14:37:31,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 14:37:31,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:37:31,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 14:37:31,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 14:37:31,002 INFO L87 Difference]: Start difference. First operand 928 states and 1041 transitions. Second operand 3 states. [2020-07-21 14:37:31,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:37:31,085 INFO L93 Difference]: Finished difference Result 1447 states and 1639 transitions. [2020-07-21 14:37:31,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 14:37:31,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2020-07-21 14:37:31,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:37:31,092 INFO L225 Difference]: With dead ends: 1447 [2020-07-21 14:37:31,093 INFO L226 Difference]: Without dead ends: 942 [2020-07-21 14:37:31,096 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 14:37:31,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2020-07-21 14:37:31,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 942. [2020-07-21 14:37:31,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 942 states. [2020-07-21 14:37:31,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1057 transitions. [2020-07-21 14:37:31,175 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1057 transitions. Word has length 182 [2020-07-21 14:37:31,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:37:31,176 INFO L479 AbstractCegarLoop]: Abstraction has 942 states and 1057 transitions. [2020-07-21 14:37:31,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 14:37:31,177 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1057 transitions. [2020-07-21 14:37:31,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-07-21 14:37:31,182 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:37:31,183 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 14:37:31,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:37:31,398 INFO L427 AbstractCegarLoop]: === Iteration 17 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:37:31,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:37:31,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1390323253, now seen corresponding path program 1 times [2020-07-21 14:37:31,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:37:31,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1941176376] [2020-07-21 14:37:31,399 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:37:31,521 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:37:31,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 14:37:31,521 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 14:37:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 14:37:31,568 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 14:37:31,749 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 14:37:31,749 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 14:37:31,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:37:32,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 02:37:32 BoogieIcfgContainer [2020-07-21 14:37:32,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 14:37:32,175 INFO L168 Benchmark]: Toolchain (without parser) took 15142.12 ms. Allocated memory was 144.2 MB in the beginning and 497.5 MB in the end (delta: 353.4 MB). Free memory was 99.8 MB in the beginning and 206.7 MB in the end (delta: -106.9 MB). Peak memory consumption was 246.5 MB. Max. memory is 7.1 GB. [2020-07-21 14:37:32,176 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 144.2 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 14:37:32,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 427.83 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 99.4 MB in the beginning and 180.1 MB in the end (delta: -80.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-07-21 14:37:32,177 INFO L168 Benchmark]: Boogie Preprocessor took 52.60 ms. Allocated memory is still 201.3 MB. Free memory was 180.1 MB in the beginning and 177.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-21 14:37:32,178 INFO L168 Benchmark]: RCFGBuilder took 576.48 ms. Allocated memory is still 201.3 MB. Free memory was 177.7 MB in the beginning and 145.1 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. [2020-07-21 14:37:32,179 INFO L168 Benchmark]: TraceAbstraction took 14076.30 ms. Allocated memory was 201.3 MB in the beginning and 497.5 MB in the end (delta: 296.2 MB). Free memory was 144.4 MB in the beginning and 206.7 MB in the end (delta: -62.3 MB). Peak memory consumption was 234.0 MB. Max. memory is 7.1 GB. [2020-07-21 14:37:32,183 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 144.2 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 427.83 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 99.4 MB in the beginning and 180.1 MB in the end (delta: -80.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.60 ms. Allocated memory is still 201.3 MB. Free memory was 180.1 MB in the beginning and 177.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 576.48 ms. Allocated memory is still 201.3 MB. Free memory was 177.7 MB in the beginning and 145.1 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14076.30 ms. Allocated memory was 201.3 MB in the beginning and 497.5 MB in the end (delta: 296.2 MB). Free memory was 144.4 MB in the beginning and 206.7 MB in the end (delta: -62.3 MB). Peak memory consumption was 234.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int m_pc = 0; [L15] int t1_pc = 0; [L16] int m_st ; [L17] int t1_st ; [L18] int m_i ; [L19] int t1_i ; [L20] int M_E = 2; [L21] int T1_E = 2; [L22] int E_M = 2; [L23] int E_1 = 2; [L27] int token ; [L29] int local ; VAL [\old(E_1)=8, \old(E_M)=9, \old(local)=13, \old(M_E)=14, \old(m_i)=15, \old(m_pc)=10, \old(m_st)=4, \old(T1_E)=12, \old(t1_i)=6, \old(t1_pc)=3, \old(t1_st)=7, \old(token)=11, E_1=2, E_M=2, local=0, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, token=0] [L475] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, token=0] [L479] CALL init_model() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, token=0] [L390] m_i = 1 [L391] t1_i = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L479] RET init_model() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L480] CALL start_simulation() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L416] int kernel_st ; [L417] int tmp ; [L418] int tmp___0 ; [L422] kernel_st = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L423] FCALL update_channels() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L424] CALL init_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L172] COND TRUE m_i == 1 [L173] m_st = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L177] COND TRUE t1_i == 1 [L178] t1_st = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L424] RET init_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L425] CALL fire_delta_events() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L261] COND FALSE !(M_E == 0) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L266] COND FALSE !(T1_E == 0) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L271] COND FALSE !(E_M == 0) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L276] COND FALSE !(E_1 == 0) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L425] RET fire_delta_events() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L426] CALL activate_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L314] int tmp ; [L315] int tmp___0 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L319] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L123] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L126] COND FALSE !(m_pc == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L136] __retres1 = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, __retres1=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L138] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, \result=0, __retres1=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L319] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, is_master_triggered()=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L319] tmp = is_master_triggered() [L321] COND FALSE !(\read(tmp)) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=0, token=0] [L327] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L142] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L145] COND FALSE !(t1_pc == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L155] __retres1 = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, __retres1=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L157] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, \result=0, __retres1=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L327] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, is_transmit1_triggered()=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=0, token=0] [L327] tmp___0 = is_transmit1_triggered() [L329] COND FALSE !(\read(tmp___0)) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=0, tmp___0=0, token=0] [L426] RET activate_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L427] CALL reset_delta_events() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L289] COND FALSE !(M_E == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L294] COND FALSE !(T1_E == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L299] COND FALSE !(E_M == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L304] COND FALSE !(E_1 == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L427] RET reset_delta_events() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L430] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L433] kernel_st = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, kernel_st=1, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L434] CALL eval() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L208] int tmp ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L212] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L215] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L187] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L190] COND TRUE m_st == 0 [L191] __retres1 = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, __retres1=1, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L203] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, \result=1, __retres1=1, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L215] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, exists_runnable_thread()=1, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, token=0] [L215] tmp = exists_runnable_thread() [L217] COND TRUE \read(tmp) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=1, token=0] [L222] COND TRUE m_st == 0 [L223] int tmp_ndt_1; [L224] tmp_ndt_1 = __VERIFIER_nondet_int() [L225] COND FALSE !(\read(tmp_ndt_1)) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=1, tmp_ndt_1=0, token=0] [L236] COND TRUE t1_st == 0 [L237] int tmp_ndt_2; [L238] tmp_ndt_2 = __VERIFIER_nondet_int() [L239] COND TRUE \read(tmp_ndt_2) [L241] t1_st = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, token=0] [L242] CALL transmit1() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, token=0] [L90] COND TRUE t1_pc == 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, token=0] [L101] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, token=0] [L103] t1_pc = 1 [L104] t1_st = 2 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L242] RET transmit1() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, token=0] [L212] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, token=0] [L215] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L187] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L190] COND TRUE m_st == 0 [L191] __retres1 = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, __retres1=1, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L203] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, \result=1, __retres1=1, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L215] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, exists_runnable_thread()=1, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, token=0] [L215] tmp = exists_runnable_thread() [L217] COND TRUE \read(tmp) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, token=0] [L222] COND TRUE m_st == 0 [L223] int tmp_ndt_1; [L224] tmp_ndt_1 = __VERIFIER_nondet_int() [L225] COND TRUE \read(tmp_ndt_1) [L227] m_st = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=-1, token=0] [L228] CALL master() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L32] int tmp_var = __VERIFIER_nondet_int(); [L34] COND TRUE m_pc == 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=0, token=0] [L45] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=0, token=0] [L48] token = __VERIFIER_nondet_int() [L49] local = token [L50] E_1 = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=0, token=-1] [L51] CALL immediate_notify() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L343] CALL activate_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L314] int tmp ; [L315] int tmp___0 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L319] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L123] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L126] COND FALSE !(m_pc == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L136] __retres1 = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, __retres1=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L138] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, \result=0, __retres1=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L319] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, is_master_triggered()=0, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L319] tmp = is_master_triggered() [L321] COND FALSE !(\read(tmp)) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=0, token=-1] [L327] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L142] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L145] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L146] COND TRUE E_1 == 1 [L147] __retres1 = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, __retres1=1, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L157] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, \result=1, __retres1=1, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=-1] [L327] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, is_transmit1_triggered()=1, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=0, token=-1] [L327] tmp___0 = is_transmit1_triggered() [L329] COND TRUE \read(tmp___0) [L330] t1_st = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, tmp=0, tmp___0=1, token=-1] [L343] RET activate_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, token=-1] [L51] RET immediate_notify() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=1, E_M=2, local=-1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, tmp_var=0, token=-1] [L52] E_1 = 2 [L53] m_pc = 1 [L54] m_st = 2 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, tmp_var=0, token=-1] [L228] RET master() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=-1, token=-1] [L236] COND TRUE t1_st == 0 [L237] int tmp_ndt_2; [L238] tmp_ndt_2 = __VERIFIER_nondet_int() [L239] COND TRUE \read(tmp_ndt_2) [L241] t1_st = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=-1, token=-1] [L242] CALL transmit1() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=-1] [L90] COND FALSE !(t1_pc == 0) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=-1] [L93] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=-1] [L109] token += 1 [L110] E_M = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L111] CALL immediate_notify() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L343] CALL activate_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L314] int tmp ; [L315] int tmp___0 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L319] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L123] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L126] COND TRUE m_pc == 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L127] COND TRUE E_M == 1 [L128] __retres1 = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, __retres1=1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L138] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, \result=1, __retres1=1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L319] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, is_master_triggered()=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L319] tmp = is_master_triggered() [L321] COND TRUE \read(tmp) [L322] m_st = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, tmp=1, token=0] [L327] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L142] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L145] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L146] COND FALSE !(E_1 == 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L155] __retres1 = 0 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, __retres1=0, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L157] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, \result=0, __retres1=0, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L327] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, is_transmit1_triggered()=0, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, tmp=1, token=0] [L327] tmp___0 = is_transmit1_triggered() [L329] COND FALSE !(\read(tmp___0)) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, tmp=1, tmp___0=0, token=0] [L343] RET activate_threads() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L111] RET immediate_notify() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L112] E_M = 2 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L101] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, token=0] [L103] t1_pc = 1 [L104] t1_st = 2 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(token)=-1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L242] RET transmit1() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=-1, token=0] [L212] COND TRUE 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=-1, token=0] [L215] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L187] int __retres1 ; VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L190] COND TRUE m_st == 0 [L191] __retres1 = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, __retres1=1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L203] return (__retres1); VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, \result=1, __retres1=1, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L215] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, exists_runnable_thread()=1, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=-1, token=0] [L215] tmp = exists_runnable_thread() [L217] COND TRUE \read(tmp) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=-1, token=0] [L222] COND TRUE m_st == 0 [L223] int tmp_ndt_1; [L224] tmp_ndt_1 = __VERIFIER_nondet_int() [L225] COND TRUE \read(tmp_ndt_1) [L227] m_st = 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=0, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=1, tmp_ndt_2=-1, token=0] [L228] CALL master() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L32] int tmp_var = __VERIFIER_nondet_int(); [L34] COND FALSE !(m_pc == 0) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L37] COND TRUE m_pc == 1 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L59] COND FALSE !(token != local + 1) VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L64] COND TRUE tmp_var <= 5 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L65] COND TRUE tmp_var >= 5 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L70] COND TRUE tmp_var <= 5 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L71] COND TRUE tmp_var >= 5 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L72] COND TRUE tmp_var == 5 VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp_var=5, token=0] [L73] CALL error() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] [L10] __VERIFIER_error() VAL [\old(E_1)=2, \old(E_M)=2, \old(local)=-1, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=1, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(token)=0, E_1=2, E_M=2, local=-1, M_E=2, m_i=1, m_pc=1, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, token=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 151 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.8s, OverallIterations: 17, TraceHistogramMax: 3, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3478 SDtfs, 2779 SDslu, 3082 SDs, 0 SdLazy, 1376 SolverSat, 614 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2361 GetRequests, 2316 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3589occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 16 MinimizatonAttempts, 341 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 2372 NumberOfCodeBlocks, 1871 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2350 ConstructedInterpolants, 0 QuantifiedInterpolants, 478435 SizeOfPredicates, 22 NumberOfNonLiveVariables, 7839 ConjunctsInSsa, 103 ConjunctsInUnsatCore, 17 InterpolantComputations, 16 PerfectInterpolantSequences, 1079/1102 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...