/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 17:22:12,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 17:22:12,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 17:22:12,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 17:22:12,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 17:22:12,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 17:22:12,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 17:22:12,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 17:22:12,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 17:22:12,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 17:22:12,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 17:22:12,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 17:22:12,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 17:22:12,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 17:22:12,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 17:22:12,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 17:22:12,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 17:22:13,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 17:22:13,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 17:22:13,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 17:22:13,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 17:22:13,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 17:22:13,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 17:22:13,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 17:22:13,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 17:22:13,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 17:22:13,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 17:22:13,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 17:22:13,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 17:22:13,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 17:22:13,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 17:22:13,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 17:22:13,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 17:22:13,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 17:22:13,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 17:22:13,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 17:22:13,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 17:22:13,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 17:22:13,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 17:22:13,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 17:22:13,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 17:22:13,022 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 17:22:13,037 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 17:22:13,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 17:22:13,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 17:22:13,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 17:22:13,038 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 17:22:13,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 17:22:13,039 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 17:22:13,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 17:22:13,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 17:22:13,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 17:22:13,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 17:22:13,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 17:22:13,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 17:22:13,040 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 17:22:13,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 17:22:13,041 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 17:22:13,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 17:22:13,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 17:22:13,041 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 17:22:13,041 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 17:22:13,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 17:22:13,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 17:22:13,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 17:22:13,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 17:22:13,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 17:22:13,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 17:22:13,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:13,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 17:22:13,043 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 17:22:13,043 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 17:22:13,330 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 17:22:13,343 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 17:22:13,346 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 17:22:13,348 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 17:22:13,348 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 17:22:13,349 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.02.cil.c [2020-07-21 17:22:13,414 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45887dac2/038004a850ad4e48b040d5fe7b241484/FLAG7fad29f84 [2020-07-21 17:22:13,903 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 17:22:13,904 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.02.cil.c [2020-07-21 17:22:13,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45887dac2/038004a850ad4e48b040d5fe7b241484/FLAG7fad29f84 [2020-07-21 17:22:14,289 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45887dac2/038004a850ad4e48b040d5fe7b241484 [2020-07-21 17:22:14,298 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 17:22:14,300 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 17:22:14,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 17:22:14,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 17:22:14,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 17:22:14,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:22:14" (1/1) ... [2020-07-21 17:22:14,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33761369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:14, skipping insertion in model container [2020-07-21 17:22:14,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:22:14" (1/1) ... [2020-07-21 17:22:14,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 17:22:14,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 17:22:14,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 17:22:14,658 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 17:22:14,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 17:22:14,818 INFO L208 MainTranslator]: Completed translation [2020-07-21 17:22:14,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:14 WrapperNode [2020-07-21 17:22:14,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 17:22:14,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 17:22:14,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 17:22:14,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 17:22:14,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:14" (1/1) ... [2020-07-21 17:22:14,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:14" (1/1) ... [2020-07-21 17:22:14,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:14" (1/1) ... [2020-07-21 17:22:14,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:14" (1/1) ... [2020-07-21 17:22:14,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:14" (1/1) ... [2020-07-21 17:22:14,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:14" (1/1) ... [2020-07-21 17:22:14,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:14" (1/1) ... [2020-07-21 17:22:14,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 17:22:14,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 17:22:14,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 17:22:14,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 17:22:14,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 17:22:14,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 17:22:14,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 17:22:14,941 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-07-21 17:22:14,941 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-07-21 17:22:14,941 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-07-21 17:22:14,941 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-07-21 17:22:14,941 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-07-21 17:22:14,942 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-07-21 17:22:14,942 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-07-21 17:22:14,942 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-07-21 17:22:14,942 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-07-21 17:22:14,942 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-07-21 17:22:14,942 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-07-21 17:22:14,943 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-07-21 17:22:14,943 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-07-21 17:22:14,943 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-07-21 17:22:14,943 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-07-21 17:22:14,943 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-07-21 17:22:14,943 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-07-21 17:22:14,944 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-07-21 17:22:14,944 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-07-21 17:22:14,944 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-07-21 17:22:14,944 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 17:22:14,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 17:22:14,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 17:22:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-07-21 17:22:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-07-21 17:22:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-07-21 17:22:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-07-21 17:22:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-07-21 17:22:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-07-21 17:22:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-07-21 17:22:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-07-21 17:22:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-07-21 17:22:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-07-21 17:22:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-07-21 17:22:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-07-21 17:22:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-07-21 17:22:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-07-21 17:22:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-07-21 17:22:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-07-21 17:22:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-07-21 17:22:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-07-21 17:22:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-07-21 17:22:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-07-21 17:22:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 17:22:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 17:22:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 17:22:15,469 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 17:22:15,470 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-21 17:22:15,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:22:15 BoogieIcfgContainer [2020-07-21 17:22:15,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 17:22:15,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 17:22:15,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 17:22:15,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 17:22:15,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:22:14" (1/3) ... [2020-07-21 17:22:15,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79cab788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:22:15, skipping insertion in model container [2020-07-21 17:22:15,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:14" (2/3) ... [2020-07-21 17:22:15,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79cab788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:22:15, skipping insertion in model container [2020-07-21 17:22:15,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:22:15" (3/3) ... [2020-07-21 17:22:15,486 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.02.cil.c [2020-07-21 17:22:15,498 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 17:22:15,506 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 17:22:15,521 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 17:22:15,548 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 17:22:15,548 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 17:22:15,549 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 17:22:15,549 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 17:22:15,549 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 17:22:15,549 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 17:22:15,549 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 17:22:15,550 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 17:22:15,576 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2020-07-21 17:22:15,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-07-21 17:22:15,589 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:15,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:15,591 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:15,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:15,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1996614335, now seen corresponding path program 1 times [2020-07-21 17:22:15,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:15,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1608100606] [2020-07-21 17:22:15,608 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:15,802 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 17:22:15,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:15,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 17:22:15,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:15,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:22:15,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:15,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1608100606] [2020-07-21 17:22:15,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:15,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:15,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279695626] [2020-07-21 17:22:15,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:15,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:15,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:15,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:15,922 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 3 states. [2020-07-21 17:22:15,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:15,999 INFO L93 Difference]: Finished difference Result 320 states and 454 transitions. [2020-07-21 17:22:15,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:16,001 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-07-21 17:22:16,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:16,022 INFO L225 Difference]: With dead ends: 320 [2020-07-21 17:22:16,023 INFO L226 Difference]: Without dead ends: 160 [2020-07-21 17:22:16,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:16,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-07-21 17:22:16,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-07-21 17:22:16,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-07-21 17:22:16,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 212 transitions. [2020-07-21 17:22:16,120 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 212 transitions. Word has length 90 [2020-07-21 17:22:16,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:16,123 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 212 transitions. [2020-07-21 17:22:16,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:16,123 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 212 transitions. [2020-07-21 17:22:16,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-07-21 17:22:16,128 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:16,128 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:16,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:16,342 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:16,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:16,343 INFO L82 PathProgramCache]: Analyzing trace with hash -387310403, now seen corresponding path program 1 times [2020-07-21 17:22:16,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:16,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1667556281] [2020-07-21 17:22:16,344 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:16,465 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:16,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:16,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 17:22:16,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:16,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:22:16,508 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:16,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1667556281] [2020-07-21 17:22:16,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:16,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:16,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967555519] [2020-07-21 17:22:16,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:16,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:16,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:16,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:16,514 INFO L87 Difference]: Start difference. First operand 160 states and 212 transitions. Second operand 3 states. [2020-07-21 17:22:16,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:16,581 INFO L93 Difference]: Finished difference Result 432 states and 593 transitions. [2020-07-21 17:22:16,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:16,584 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-07-21 17:22:16,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:16,590 INFO L225 Difference]: With dead ends: 432 [2020-07-21 17:22:16,590 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 17:22:16,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:16,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 17:22:16,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 288. [2020-07-21 17:22:16,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-07-21 17:22:16,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 396 transitions. [2020-07-21 17:22:16,673 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 396 transitions. Word has length 90 [2020-07-21 17:22:16,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:16,674 INFO L479 AbstractCegarLoop]: Abstraction has 288 states and 396 transitions. [2020-07-21 17:22:16,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:16,674 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 396 transitions. [2020-07-21 17:22:16,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-21 17:22:16,681 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:16,682 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:16,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:16,883 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:16,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:16,884 INFO L82 PathProgramCache]: Analyzing trace with hash 16326453, now seen corresponding path program 1 times [2020-07-21 17:22:16,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:16,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715766413] [2020-07-21 17:22:16,885 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:16,999 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 17:22:17,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:17,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 17:22:17,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:17,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:22:17,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:17,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715766413] [2020-07-21 17:22:17,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:17,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:17,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372878842] [2020-07-21 17:22:17,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:17,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:17,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:17,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:17,026 INFO L87 Difference]: Start difference. First operand 288 states and 396 transitions. Second operand 3 states. [2020-07-21 17:22:17,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:17,059 INFO L93 Difference]: Finished difference Result 548 states and 754 transitions. [2020-07-21 17:22:17,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:17,059 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2020-07-21 17:22:17,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:17,063 INFO L225 Difference]: With dead ends: 548 [2020-07-21 17:22:17,063 INFO L226 Difference]: Without dead ends: 281 [2020-07-21 17:22:17,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:17,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-07-21 17:22:17,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2020-07-21 17:22:17,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-07-21 17:22:17,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 383 transitions. [2020-07-21 17:22:17,091 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 383 transitions. Word has length 91 [2020-07-21 17:22:17,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:17,092 INFO L479 AbstractCegarLoop]: Abstraction has 281 states and 383 transitions. [2020-07-21 17:22:17,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:17,092 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 383 transitions. [2020-07-21 17:22:17,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-21 17:22:17,093 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:17,094 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:17,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:17,308 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:17,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:17,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1717777997, now seen corresponding path program 1 times [2020-07-21 17:22:17,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:17,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [627238679] [2020-07-21 17:22:17,311 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:17,433 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:17,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:17,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 17:22:17,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:17,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:22:17,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:17,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [627238679] [2020-07-21 17:22:17,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:17,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 17:22:17,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147873256] [2020-07-21 17:22:17,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 17:22:17,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:17,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 17:22:17,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 17:22:17,557 INFO L87 Difference]: Start difference. First operand 281 states and 383 transitions. Second operand 5 states. [2020-07-21 17:22:18,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:18,304 INFO L93 Difference]: Finished difference Result 835 states and 1202 transitions. [2020-07-21 17:22:18,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 17:22:18,305 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-07-21 17:22:18,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:18,313 INFO L225 Difference]: With dead ends: 835 [2020-07-21 17:22:18,314 INFO L226 Difference]: Without dead ends: 574 [2020-07-21 17:22:18,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 17:22:18,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-07-21 17:22:18,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 523. [2020-07-21 17:22:18,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2020-07-21 17:22:18,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 714 transitions. [2020-07-21 17:22:18,392 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 714 transitions. Word has length 91 [2020-07-21 17:22:18,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:18,393 INFO L479 AbstractCegarLoop]: Abstraction has 523 states and 714 transitions. [2020-07-21 17:22:18,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 17:22:18,393 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 714 transitions. [2020-07-21 17:22:18,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-21 17:22:18,396 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:18,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:18,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:18,611 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:18,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:18,612 INFO L82 PathProgramCache]: Analyzing trace with hash 2107195379, now seen corresponding path program 1 times [2020-07-21 17:22:18,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:18,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046509869] [2020-07-21 17:22:18,614 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:18,719 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:18,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:18,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 17:22:18,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:18,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:22:18,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:18,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2046509869] [2020-07-21 17:22:18,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:18,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 17:22:18,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064494339] [2020-07-21 17:22:18,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 17:22:18,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:18,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 17:22:18,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 17:22:18,772 INFO L87 Difference]: Start difference. First operand 523 states and 714 transitions. Second operand 5 states. [2020-07-21 17:22:19,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:19,175 INFO L93 Difference]: Finished difference Result 1026 states and 1421 transitions. [2020-07-21 17:22:19,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 17:22:19,175 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-07-21 17:22:19,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:19,179 INFO L225 Difference]: With dead ends: 1026 [2020-07-21 17:22:19,188 INFO L226 Difference]: Without dead ends: 523 [2020-07-21 17:22:19,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 17:22:19,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-07-21 17:22:19,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2020-07-21 17:22:19,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2020-07-21 17:22:19,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 702 transitions. [2020-07-21 17:22:19,248 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 702 transitions. Word has length 91 [2020-07-21 17:22:19,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:19,250 INFO L479 AbstractCegarLoop]: Abstraction has 523 states and 702 transitions. [2020-07-21 17:22:19,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 17:22:19,250 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 702 transitions. [2020-07-21 17:22:19,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-21 17:22:19,251 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:19,251 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:19,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:19,453 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:19,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:19,453 INFO L82 PathProgramCache]: Analyzing trace with hash 381568563, now seen corresponding path program 1 times [2020-07-21 17:22:19,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:19,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [242531191] [2020-07-21 17:22:19,455 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:19,519 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 17:22:19,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:19,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 17:22:19,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:19,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:22:19,559 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:19,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [242531191] [2020-07-21 17:22:19,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:19,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 17:22:19,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391972655] [2020-07-21 17:22:19,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 17:22:19,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:19,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 17:22:19,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 17:22:19,562 INFO L87 Difference]: Start difference. First operand 523 states and 702 transitions. Second operand 5 states. [2020-07-21 17:22:19,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:19,991 INFO L93 Difference]: Finished difference Result 1026 states and 1397 transitions. [2020-07-21 17:22:19,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 17:22:19,992 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-07-21 17:22:19,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:19,996 INFO L225 Difference]: With dead ends: 1026 [2020-07-21 17:22:19,996 INFO L226 Difference]: Without dead ends: 523 [2020-07-21 17:22:19,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 17:22:19,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-07-21 17:22:20,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2020-07-21 17:22:20,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2020-07-21 17:22:20,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 690 transitions. [2020-07-21 17:22:20,034 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 690 transitions. Word has length 91 [2020-07-21 17:22:20,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:20,035 INFO L479 AbstractCegarLoop]: Abstraction has 523 states and 690 transitions. [2020-07-21 17:22:20,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 17:22:20,035 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 690 transitions. [2020-07-21 17:22:20,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-21 17:22:20,036 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:20,036 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:20,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:20,247 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:20,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:20,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1573255181, now seen corresponding path program 1 times [2020-07-21 17:22:20,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:20,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [74625989] [2020-07-21 17:22:20,249 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:20,320 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 17:22:20,320 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:20,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 17:22:20,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:20,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:22:20,371 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:20,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [74625989] [2020-07-21 17:22:20,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:20,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 17:22:20,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164985263] [2020-07-21 17:22:20,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 17:22:20,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:20,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 17:22:20,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 17:22:20,374 INFO L87 Difference]: Start difference. First operand 523 states and 690 transitions. Second operand 5 states. [2020-07-21 17:22:20,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:20,995 INFO L93 Difference]: Finished difference Result 1306 states and 1859 transitions. [2020-07-21 17:22:20,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 17:22:20,995 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-07-21 17:22:20,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:21,001 INFO L225 Difference]: With dead ends: 1306 [2020-07-21 17:22:21,001 INFO L226 Difference]: Without dead ends: 803 [2020-07-21 17:22:21,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 17:22:21,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2020-07-21 17:22:21,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 669. [2020-07-21 17:22:21,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2020-07-21 17:22:21,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 850 transitions. [2020-07-21 17:22:21,071 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 850 transitions. Word has length 91 [2020-07-21 17:22:21,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:21,072 INFO L479 AbstractCegarLoop]: Abstraction has 669 states and 850 transitions. [2020-07-21 17:22:21,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 17:22:21,072 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 850 transitions. [2020-07-21 17:22:21,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-21 17:22:21,073 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:21,075 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:21,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:21,291 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:21,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:21,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1097571891, now seen corresponding path program 1 times [2020-07-21 17:22:21,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:21,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182477350] [2020-07-21 17:22:21,292 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:21,370 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:21,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:21,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 17:22:21,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:21,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:22:21,416 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:21,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182477350] [2020-07-21 17:22:21,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:21,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 17:22:21,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673522937] [2020-07-21 17:22:21,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 17:22:21,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:21,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 17:22:21,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 17:22:21,418 INFO L87 Difference]: Start difference. First operand 669 states and 850 transitions. Second operand 5 states. [2020-07-21 17:22:21,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:21,949 INFO L93 Difference]: Finished difference Result 1630 states and 2230 transitions. [2020-07-21 17:22:21,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 17:22:21,950 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-07-21 17:22:21,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:21,976 INFO L225 Difference]: With dead ends: 1630 [2020-07-21 17:22:21,976 INFO L226 Difference]: Without dead ends: 981 [2020-07-21 17:22:21,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 17:22:21,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2020-07-21 17:22:22,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 735. [2020-07-21 17:22:22,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-07-21 17:22:22,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 907 transitions. [2020-07-21 17:22:22,040 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 907 transitions. Word has length 91 [2020-07-21 17:22:22,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:22,041 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 907 transitions. [2020-07-21 17:22:22,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 17:22:22,041 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 907 transitions. [2020-07-21 17:22:22,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-21 17:22:22,042 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:22,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:22,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:22,256 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:22,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:22,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1274167371, now seen corresponding path program 1 times [2020-07-21 17:22:22,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:22,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795361619] [2020-07-21 17:22:22,257 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:22,342 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:22,342 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:22,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 17:22:22,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:22,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:22:22,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:22,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795361619] [2020-07-21 17:22:22,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:22,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:22,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681601302] [2020-07-21 17:22:22,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:22,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:22,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:22,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:22,381 INFO L87 Difference]: Start difference. First operand 735 states and 907 transitions. Second operand 3 states. [2020-07-21 17:22:22,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:22,470 INFO L93 Difference]: Finished difference Result 2141 states and 2709 transitions. [2020-07-21 17:22:22,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:22,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2020-07-21 17:22:22,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:22,479 INFO L225 Difference]: With dead ends: 2141 [2020-07-21 17:22:22,479 INFO L226 Difference]: Without dead ends: 1427 [2020-07-21 17:22:22,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:22,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2020-07-21 17:22:22,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1419. [2020-07-21 17:22:22,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1419 states. [2020-07-21 17:22:22,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 1753 transitions. [2020-07-21 17:22:22,573 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 1753 transitions. Word has length 91 [2020-07-21 17:22:22,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:22,574 INFO L479 AbstractCegarLoop]: Abstraction has 1419 states and 1753 transitions. [2020-07-21 17:22:22,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:22,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 1753 transitions. [2020-07-21 17:22:22,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-21 17:22:22,576 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:22,576 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:22,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:22,790 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:22,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:22,790 INFO L82 PathProgramCache]: Analyzing trace with hash -498935573, now seen corresponding path program 1 times [2020-07-21 17:22:22,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:22,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648778114] [2020-07-21 17:22:22,791 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:22,867 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 17:22:22,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:22,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 17:22:22,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:22,886 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:22:22,886 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:22,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1648778114] [2020-07-21 17:22:22,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:22,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:22,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958961461] [2020-07-21 17:22:22,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:22,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:22,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:22,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:22,889 INFO L87 Difference]: Start difference. First operand 1419 states and 1753 transitions. Second operand 3 states. [2020-07-21 17:22:23,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:23,083 INFO L93 Difference]: Finished difference Result 4167 states and 5302 transitions. [2020-07-21 17:22:23,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:23,083 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-07-21 17:22:23,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:23,127 INFO L225 Difference]: With dead ends: 4167 [2020-07-21 17:22:23,127 INFO L226 Difference]: Without dead ends: 2770 [2020-07-21 17:22:23,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:23,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2020-07-21 17:22:23,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2770. [2020-07-21 17:22:23,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2770 states. [2020-07-21 17:22:23,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 3508 transitions. [2020-07-21 17:22:23,357 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 3508 transitions. Word has length 111 [2020-07-21 17:22:23,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:23,358 INFO L479 AbstractCegarLoop]: Abstraction has 2770 states and 3508 transitions. [2020-07-21 17:22:23,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:23,359 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 3508 transitions. [2020-07-21 17:22:23,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-21 17:22:23,366 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:23,366 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:23,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:23,582 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:23,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:23,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1684603705, now seen corresponding path program 1 times [2020-07-21 17:22:23,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:23,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103599267] [2020-07-21 17:22:23,584 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:23,673 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 17:22:23,674 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:23,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 17:22:23,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:23,729 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-07-21 17:22:23,729 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:23,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [103599267] [2020-07-21 17:22:23,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:23,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 17:22:23,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220087689] [2020-07-21 17:22:23,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 17:22:23,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:23,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 17:22:23,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 17:22:23,732 INFO L87 Difference]: Start difference. First operand 2770 states and 3508 transitions. Second operand 6 states. [2020-07-21 17:22:23,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:23,968 INFO L93 Difference]: Finished difference Result 5711 states and 7471 transitions. [2020-07-21 17:22:23,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 17:22:23,969 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2020-07-21 17:22:23,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:23,987 INFO L225 Difference]: With dead ends: 5711 [2020-07-21 17:22:23,987 INFO L226 Difference]: Without dead ends: 2966 [2020-07-21 17:22:23,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 17:22:24,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2020-07-21 17:22:24,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 2926. [2020-07-21 17:22:24,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2926 states. [2020-07-21 17:22:24,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2926 states to 2926 states and 3662 transitions. [2020-07-21 17:22:24,225 INFO L78 Accepts]: Start accepts. Automaton has 2926 states and 3662 transitions. Word has length 154 [2020-07-21 17:22:24,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:24,225 INFO L479 AbstractCegarLoop]: Abstraction has 2926 states and 3662 transitions. [2020-07-21 17:22:24,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 17:22:24,226 INFO L276 IsEmpty]: Start isEmpty. Operand 2926 states and 3662 transitions. [2020-07-21 17:22:24,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-21 17:22:24,230 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:24,231 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:24,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:24,445 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:24,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:24,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1075798151, now seen corresponding path program 1 times [2020-07-21 17:22:24,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:24,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483242318] [2020-07-21 17:22:24,446 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:24,549 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:24,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:24,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 17:22:24,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:24,586 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:22:24,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:24,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483242318] [2020-07-21 17:22:24,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:24,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:24,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432366960] [2020-07-21 17:22:24,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:24,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:24,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:24,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:24,589 INFO L87 Difference]: Start difference. First operand 2926 states and 3662 transitions. Second operand 3 states. [2020-07-21 17:22:24,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:24,790 INFO L93 Difference]: Finished difference Result 4395 states and 5672 transitions. [2020-07-21 17:22:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:24,791 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2020-07-21 17:22:24,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:24,808 INFO L225 Difference]: With dead ends: 4395 [2020-07-21 17:22:24,809 INFO L226 Difference]: Without dead ends: 2926 [2020-07-21 17:22:24,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:24,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2020-07-21 17:22:24,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 2917. [2020-07-21 17:22:24,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2917 states. [2020-07-21 17:22:24,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2917 states to 2917 states and 3613 transitions. [2020-07-21 17:22:24,989 INFO L78 Accepts]: Start accepts. Automaton has 2917 states and 3613 transitions. Word has length 154 [2020-07-21 17:22:24,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:24,990 INFO L479 AbstractCegarLoop]: Abstraction has 2917 states and 3613 transitions. [2020-07-21 17:22:24,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:24,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2917 states and 3613 transitions. [2020-07-21 17:22:24,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-21 17:22:24,995 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:24,995 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:25,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:25,209 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:25,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:25,209 INFO L82 PathProgramCache]: Analyzing trace with hash 378797437, now seen corresponding path program 1 times [2020-07-21 17:22:25,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:25,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1341346495] [2020-07-21 17:22:25,210 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:25,312 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:25,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:25,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 17:22:25,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:25,346 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-21 17:22:25,346 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:25,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1341346495] [2020-07-21 17:22:25,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:25,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:25,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502937920] [2020-07-21 17:22:25,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:25,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:25,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:25,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:25,348 INFO L87 Difference]: Start difference. First operand 2917 states and 3613 transitions. Second operand 3 states. [2020-07-21 17:22:25,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:25,604 INFO L93 Difference]: Finished difference Result 8133 states and 10545 transitions. [2020-07-21 17:22:25,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:25,605 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2020-07-21 17:22:25,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:25,639 INFO L225 Difference]: With dead ends: 8133 [2020-07-21 17:22:25,639 INFO L226 Difference]: Without dead ends: 5243 [2020-07-21 17:22:25,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:25,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5243 states. [2020-07-21 17:22:25,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5243 to 4953. [2020-07-21 17:22:25,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4953 states. [2020-07-21 17:22:25,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4953 states to 4953 states and 6401 transitions. [2020-07-21 17:22:25,970 INFO L78 Accepts]: Start accepts. Automaton has 4953 states and 6401 transitions. Word has length 155 [2020-07-21 17:22:25,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:25,971 INFO L479 AbstractCegarLoop]: Abstraction has 4953 states and 6401 transitions. [2020-07-21 17:22:25,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:25,971 INFO L276 IsEmpty]: Start isEmpty. Operand 4953 states and 6401 transitions. [2020-07-21 17:22:25,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-07-21 17:22:25,979 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:25,979 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:26,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:26,193 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:26,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:26,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1052645492, now seen corresponding path program 1 times [2020-07-21 17:22:26,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:26,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039445968] [2020-07-21 17:22:26,195 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:26,320 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 17:22:26,320 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:26,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 17:22:26,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:26,388 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-21 17:22:26,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:26,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039445968] [2020-07-21 17:22:26,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:26,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:26,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404528368] [2020-07-21 17:22:26,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:26,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:26,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:26,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:26,392 INFO L87 Difference]: Start difference. First operand 4953 states and 6401 transitions. Second operand 3 states. [2020-07-21 17:22:26,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:26,686 INFO L93 Difference]: Finished difference Result 9885 states and 13051 transitions. [2020-07-21 17:22:26,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:26,687 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2020-07-21 17:22:26,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:26,717 INFO L225 Difference]: With dead ends: 9885 [2020-07-21 17:22:26,717 INFO L226 Difference]: Without dead ends: 4959 [2020-07-21 17:22:26,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:26,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4959 states. [2020-07-21 17:22:27,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4959 to 4953. [2020-07-21 17:22:27,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4953 states. [2020-07-21 17:22:27,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4953 states to 4953 states and 6265 transitions. [2020-07-21 17:22:27,059 INFO L78 Accepts]: Start accepts. Automaton has 4953 states and 6265 transitions. Word has length 199 [2020-07-21 17:22:27,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:27,060 INFO L479 AbstractCegarLoop]: Abstraction has 4953 states and 6265 transitions. [2020-07-21 17:22:27,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:27,060 INFO L276 IsEmpty]: Start isEmpty. Operand 4953 states and 6265 transitions. [2020-07-21 17:22:27,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-21 17:22:27,068 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:27,069 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:27,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:27,284 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:27,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:27,284 INFO L82 PathProgramCache]: Analyzing trace with hash 489218480, now seen corresponding path program 1 times [2020-07-21 17:22:27,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:27,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1283146411] [2020-07-21 17:22:27,285 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:27,404 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:27,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:27,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 17:22:27,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:27,495 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 17:22:27,495 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:27,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1283146411] [2020-07-21 17:22:27,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:27,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:27,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795674694] [2020-07-21 17:22:27,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:27,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:27,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:27,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:27,498 INFO L87 Difference]: Start difference. First operand 4953 states and 6265 transitions. Second operand 3 states. [2020-07-21 17:22:27,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:27,811 INFO L93 Difference]: Finished difference Result 11983 states and 16226 transitions. [2020-07-21 17:22:27,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:27,812 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2020-07-21 17:22:27,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:27,862 INFO L225 Difference]: With dead ends: 11983 [2020-07-21 17:22:27,862 INFO L226 Difference]: Without dead ends: 7057 [2020-07-21 17:22:27,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:27,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7057 states. [2020-07-21 17:22:28,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7057 to 7031. [2020-07-21 17:22:28,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7031 states. [2020-07-21 17:22:28,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7031 states to 7031 states and 8960 transitions. [2020-07-21 17:22:28,425 INFO L78 Accepts]: Start accepts. Automaton has 7031 states and 8960 transitions. Word has length 156 [2020-07-21 17:22:28,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:28,426 INFO L479 AbstractCegarLoop]: Abstraction has 7031 states and 8960 transitions. [2020-07-21 17:22:28,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:28,427 INFO L276 IsEmpty]: Start isEmpty. Operand 7031 states and 8960 transitions. [2020-07-21 17:22:28,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-21 17:22:28,437 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:28,437 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:28,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:28,651 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:28,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:28,652 INFO L82 PathProgramCache]: Analyzing trace with hash -783679991, now seen corresponding path program 1 times [2020-07-21 17:22:28,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:28,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [948296438] [2020-07-21 17:22:28,653 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 17:22:28,766 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:28,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:28,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 17:22:28,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:28,808 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-21 17:22:28,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:28,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [948296438] [2020-07-21 17:22:28,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:28,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 17:22:28,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359953534] [2020-07-21 17:22:28,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 17:22:28,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:28,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 17:22:28,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 17:22:28,814 INFO L87 Difference]: Start difference. First operand 7031 states and 8960 transitions. Second operand 6 states. [2020-07-21 17:22:29,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:29,130 INFO L93 Difference]: Finished difference Result 14157 states and 18955 transitions. [2020-07-21 17:22:29,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 17:22:29,130 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2020-07-21 17:22:29,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:29,168 INFO L225 Difference]: With dead ends: 14157 [2020-07-21 17:22:29,169 INFO L226 Difference]: Without dead ends: 7151 [2020-07-21 17:22:29,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 17:22:29,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7151 states. [2020-07-21 17:22:29,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7151 to 7151. [2020-07-21 17:22:29,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7151 states. [2020-07-21 17:22:29,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7151 states to 7151 states and 8972 transitions. [2020-07-21 17:22:29,674 INFO L78 Accepts]: Start accepts. Automaton has 7151 states and 8972 transitions. Word has length 157 [2020-07-21 17:22:29,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:29,675 INFO L479 AbstractCegarLoop]: Abstraction has 7151 states and 8972 transitions. [2020-07-21 17:22:29,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 17:22:29,675 INFO L276 IsEmpty]: Start isEmpty. Operand 7151 states and 8972 transitions. [2020-07-21 17:22:29,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-21 17:22:29,686 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:29,686 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:29,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:29,900 INFO L427 AbstractCegarLoop]: === Iteration 17 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:29,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:29,900 INFO L82 PathProgramCache]: Analyzing trace with hash -436061171, now seen corresponding path program 1 times [2020-07-21 17:22:29,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:29,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [841449955] [2020-07-21 17:22:29,901 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 17:22:30,003 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:30,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:30,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 17:22:30,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:30,046 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-07-21 17:22:30,047 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:30,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [841449955] [2020-07-21 17:22:30,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:30,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 17:22:30,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340488527] [2020-07-21 17:22:30,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 17:22:30,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:30,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 17:22:30,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 17:22:30,049 INFO L87 Difference]: Start difference. First operand 7151 states and 8972 transitions. Second operand 6 states. [2020-07-21 17:22:30,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:30,272 INFO L93 Difference]: Finished difference Result 12065 states and 15403 transitions. [2020-07-21 17:22:30,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 17:22:30,272 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2020-07-21 17:22:30,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:30,295 INFO L225 Difference]: With dead ends: 12065 [2020-07-21 17:22:30,295 INFO L226 Difference]: Without dead ends: 4935 [2020-07-21 17:22:30,313 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 17:22:30,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4935 states. [2020-07-21 17:22:31,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4935 to 4935. [2020-07-21 17:22:31,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4935 states. [2020-07-21 17:22:31,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4935 states to 4935 states and 5927 transitions. [2020-07-21 17:22:31,047 INFO L78 Accepts]: Start accepts. Automaton has 4935 states and 5927 transitions. Word has length 157 [2020-07-21 17:22:31,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:31,047 INFO L479 AbstractCegarLoop]: Abstraction has 4935 states and 5927 transitions. [2020-07-21 17:22:31,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 17:22:31,047 INFO L276 IsEmpty]: Start isEmpty. Operand 4935 states and 5927 transitions. [2020-07-21 17:22:31,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-21 17:22:31,053 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:31,054 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:31,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:31,268 INFO L427 AbstractCegarLoop]: === Iteration 18 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:31,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:31,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1766100183, now seen corresponding path program 1 times [2020-07-21 17:22:31,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:31,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2049175144] [2020-07-21 17:22:31,269 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:31,369 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:31,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:31,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 17:22:31,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:31,417 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 29 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 17:22:31,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 17:22:31,602 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-07-21 17:22:31,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2049175144] [2020-07-21 17:22:31,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 17:22:31,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2020-07-21 17:22:31,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331169489] [2020-07-21 17:22:31,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 17:22:31,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:31,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 17:22:31,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 17:22:31,605 INFO L87 Difference]: Start difference. First operand 4935 states and 5927 transitions. Second operand 5 states. [2020-07-21 17:22:32,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:32,309 INFO L93 Difference]: Finished difference Result 9429 states and 11558 transitions. [2020-07-21 17:22:32,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 17:22:32,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-07-21 17:22:32,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:32,331 INFO L225 Difference]: With dead ends: 9429 [2020-07-21 17:22:32,331 INFO L226 Difference]: Without dead ends: 5580 [2020-07-21 17:22:32,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 304 SyntacticMatches, 5 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 17:22:32,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5580 states. [2020-07-21 17:22:32,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5580 to 5494. [2020-07-21 17:22:32,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5494 states. [2020-07-21 17:22:32,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5494 states to 5494 states and 6698 transitions. [2020-07-21 17:22:32,737 INFO L78 Accepts]: Start accepts. Automaton has 5494 states and 6698 transitions. Word has length 157 [2020-07-21 17:22:32,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:32,737 INFO L479 AbstractCegarLoop]: Abstraction has 5494 states and 6698 transitions. [2020-07-21 17:22:32,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 17:22:32,738 INFO L276 IsEmpty]: Start isEmpty. Operand 5494 states and 6698 transitions. [2020-07-21 17:22:32,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-21 17:22:32,743 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:32,743 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:32,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:32,957 INFO L427 AbstractCegarLoop]: === Iteration 19 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:32,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:32,957 INFO L82 PathProgramCache]: Analyzing trace with hash 574859069, now seen corresponding path program 1 times [2020-07-21 17:22:32,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:32,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611627138] [2020-07-21 17:22:32,957 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:33,036 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 17:22:33,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:33,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 17:22:33,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:33,066 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:22:33,066 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:33,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611627138] [2020-07-21 17:22:33,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:33,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:33,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720449428] [2020-07-21 17:22:33,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:33,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:33,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:33,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:33,068 INFO L87 Difference]: Start difference. First operand 5494 states and 6698 transitions. Second operand 3 states. [2020-07-21 17:22:33,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:33,354 INFO L93 Difference]: Finished difference Result 9730 states and 11961 transitions. [2020-07-21 17:22:33,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:33,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2020-07-21 17:22:33,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:33,382 INFO L225 Difference]: With dead ends: 9730 [2020-07-21 17:22:33,383 INFO L226 Difference]: Without dead ends: 5342 [2020-07-21 17:22:33,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:33,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5342 states. [2020-07-21 17:22:33,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5342 to 5336. [2020-07-21 17:22:33,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5336 states. [2020-07-21 17:22:33,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5336 states to 5336 states and 6258 transitions. [2020-07-21 17:22:33,686 INFO L78 Accepts]: Start accepts. Automaton has 5336 states and 6258 transitions. Word has length 163 [2020-07-21 17:22:33,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:33,687 INFO L479 AbstractCegarLoop]: Abstraction has 5336 states and 6258 transitions. [2020-07-21 17:22:33,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:33,687 INFO L276 IsEmpty]: Start isEmpty. Operand 5336 states and 6258 transitions. [2020-07-21 17:22:33,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-07-21 17:22:33,694 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:33,694 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:33,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:33,908 INFO L427 AbstractCegarLoop]: === Iteration 20 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:33,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:33,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1382123670, now seen corresponding path program 1 times [2020-07-21 17:22:33,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:33,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [93975001] [2020-07-21 17:22:33,909 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:34,049 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:34,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:34,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 17:22:34,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:34,189 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-07-21 17:22:34,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:34,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [93975001] [2020-07-21 17:22:34,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:34,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:34,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066567252] [2020-07-21 17:22:34,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:34,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:34,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:34,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:34,193 INFO L87 Difference]: Start difference. First operand 5336 states and 6258 transitions. Second operand 3 states. [2020-07-21 17:22:34,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:34,413 INFO L93 Difference]: Finished difference Result 10863 states and 13014 transitions. [2020-07-21 17:22:34,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:34,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2020-07-21 17:22:34,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:34,427 INFO L225 Difference]: With dead ends: 10863 [2020-07-21 17:22:34,427 INFO L226 Difference]: Without dead ends: 2830 [2020-07-21 17:22:34,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:34,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2830 states. [2020-07-21 17:22:34,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2830 to 2704. [2020-07-21 17:22:34,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2704 states. [2020-07-21 17:22:34,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2704 states to 2704 states and 3081 transitions. [2020-07-21 17:22:34,594 INFO L78 Accepts]: Start accepts. Automaton has 2704 states and 3081 transitions. Word has length 207 [2020-07-21 17:22:34,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:34,597 INFO L479 AbstractCegarLoop]: Abstraction has 2704 states and 3081 transitions. [2020-07-21 17:22:34,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:34,597 INFO L276 IsEmpty]: Start isEmpty. Operand 2704 states and 3081 transitions. [2020-07-21 17:22:34,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-07-21 17:22:34,604 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:34,607 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:34,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:34,821 INFO L427 AbstractCegarLoop]: === Iteration 21 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:34,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:34,821 INFO L82 PathProgramCache]: Analyzing trace with hash 89354437, now seen corresponding path program 1 times [2020-07-21 17:22:34,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:34,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180484403] [2020-07-21 17:22:34,823 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:34,952 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:34,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 17:22:34,952 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 17:22:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 17:22:35,009 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 17:22:35,280 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 17:22:35,280 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 17:22:35,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:35,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:22:35 BoogieIcfgContainer [2020-07-21 17:22:35,701 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 17:22:35,704 INFO L168 Benchmark]: Toolchain (without parser) took 21404.00 ms. Allocated memory was 143.7 MB in the beginning and 843.1 MB in the end (delta: 699.4 MB). Free memory was 101.6 MB in the beginning and 342.7 MB in the end (delta: -241.2 MB). Peak memory consumption was 458.2 MB. Max. memory is 7.1 GB. [2020-07-21 17:22:35,704 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 143.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 17:22:35,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 517.67 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 101.4 MB in the beginning and 177.1 MB in the end (delta: -75.8 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-07-21 17:22:35,706 INFO L168 Benchmark]: Boogie Preprocessor took 51.15 ms. Allocated memory is still 200.8 MB. Free memory was 177.1 MB in the beginning and 175.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-07-21 17:22:35,706 INFO L168 Benchmark]: RCFGBuilder took 606.37 ms. Allocated memory is still 200.8 MB. Free memory was 175.0 MB in the beginning and 139.1 MB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2020-07-21 17:22:35,707 INFO L168 Benchmark]: TraceAbstraction took 20223.10 ms. Allocated memory was 200.8 MB in the beginning and 843.1 MB in the end (delta: 642.3 MB). Free memory was 138.4 MB in the beginning and 342.7 MB in the end (delta: -204.4 MB). Peak memory consumption was 437.9 MB. Max. memory is 7.1 GB. [2020-07-21 17:22:35,709 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 143.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 517.67 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 101.4 MB in the beginning and 177.1 MB in the end (delta: -75.8 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 51.15 ms. Allocated memory is still 200.8 MB. Free memory was 177.1 MB in the beginning and 175.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 606.37 ms. Allocated memory is still 200.8 MB. Free memory was 175.0 MB in the beginning and 139.1 MB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20223.10 ms. Allocated memory was 200.8 MB in the beginning and 843.1 MB in the end (delta: 642.3 MB). Free memory was 138.4 MB in the beginning and 342.7 MB in the end (delta: -204.4 MB). Peak memory consumption was 437.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] int m_pc = 0; [L16] int t1_pc = 0; [L17] int t2_pc = 0; [L18] int m_st ; [L19] int t1_st ; [L20] int t2_st ; [L21] int m_i ; [L22] int t1_i ; [L23] int t2_i ; [L24] int M_E = 2; [L25] int T1_E = 2; [L26] int T2_E = 2; [L27] int E_1 = 2; [L28] int E_2 = 2; VAL [\old(E_1)=15, \old(E_2)=6, \old(M_E)=10, \old(m_i)=3, \old(m_pc)=4, \old(m_st)=8, \old(T1_E)=14, \old(t1_i)=11, \old(t1_pc)=13, \old(t1_st)=12, \old(T2_E)=7, \old(t2_i)=9, \old(t2_pc)=16, \old(t2_st)=5, E_1=2, E_2=2, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, T2_E=2, t2_i=0, t2_pc=0, t2_st=0] [L563] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, T2_E=2, t2_i=0, t2_pc=0, t2_st=0] [L567] CALL init_model() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0, T2_E=2, t2_i=0, t2_pc=0, t2_st=0] [L477] m_i = 1 [L478] t1_i = 1 [L479] t2_i = 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L567] RET init_model() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L568] CALL start_simulation() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L504] int kernel_st ; [L505] int tmp ; [L506] int tmp___0 ; [L510] kernel_st = 0 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L511] FCALL update_channels() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L512] CALL init_threads() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L211] COND TRUE m_i == 1 [L212] m_st = 0 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L216] COND TRUE t1_i == 1 [L217] t1_st = 0 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L221] COND TRUE t2_i == 1 [L222] t2_st = 0 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L512] RET init_threads() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L513] CALL fire_delta_events() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L324] COND FALSE !(M_E == 0) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L329] COND FALSE !(T1_E == 0) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L334] COND FALSE !(T2_E == 0) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L339] COND FALSE !(E_1 == 0) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L344] COND FALSE !(E_2 == 0) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L513] RET fire_delta_events() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L514] CALL activate_threads() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L387] int tmp ; [L388] int tmp___0 ; [L389] int tmp___1 ; VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L393] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L143] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L146] COND FALSE !(m_pc == 1) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L156] __retres1 = 0 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, __retres1=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L158] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, \result=0, __retres1=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L393] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, is_master_triggered()=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L393] tmp = is_master_triggered() [L395] COND FALSE !(\read(tmp)) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=0] [L401] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L162] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L165] COND FALSE !(t1_pc == 1) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L175] __retres1 = 0 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, __retres1=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L177] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, \result=0, __retres1=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L401] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, is_transmit1_triggered()=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=0] [L401] tmp___0 = is_transmit1_triggered() [L403] COND FALSE !(\read(tmp___0)) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=0, tmp___0=0] [L409] CALL, EXPR is_transmit2_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L181] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L184] COND FALSE !(t2_pc == 1) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L194] __retres1 = 0 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, __retres1=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L196] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, \result=0, __retres1=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L409] RET, EXPR is_transmit2_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, is_transmit2_triggered()=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=0, tmp___0=0] [L409] tmp___1 = is_transmit2_triggered() [L411] COND FALSE !(\read(tmp___1)) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=0, tmp___0=0, tmp___1=0] [L514] RET activate_threads() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L515] CALL reset_delta_events() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L357] COND FALSE !(M_E == 1) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L362] COND FALSE !(T1_E == 1) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L367] COND FALSE !(T2_E == 1) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L372] COND FALSE !(E_1 == 1) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L377] COND FALSE !(E_2 == 1) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L515] RET reset_delta_events() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L518] COND TRUE 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L521] kernel_st = 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, kernel_st=1, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L522] CALL eval() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L257] int tmp ; VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L261] COND TRUE 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L264] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L231] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L234] COND TRUE m_st == 0 [L235] __retres1 = 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, __retres1=1, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L252] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, \result=1, __retres1=1, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L264] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, exists_runnable_thread()=1, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L264] tmp = exists_runnable_thread() [L266] COND TRUE \read(tmp) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1] [L271] COND TRUE m_st == 0 [L272] int tmp_ndt_1; [L273] tmp_ndt_1 = __VERIFIER_nondet_int() [L274] COND FALSE !(\read(tmp_ndt_1)) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1, tmp_ndt_1=0] [L285] COND TRUE t1_st == 0 [L286] int tmp_ndt_2; [L287] tmp_ndt_2 = __VERIFIER_nondet_int() [L288] COND TRUE \read(tmp_ndt_2) [L290] t1_st = 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1] [L291] CALL transmit1() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L78] COND TRUE t1_pc == 0 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L89] COND TRUE 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L91] t1_pc = 1 [L92] t1_st = 2 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=0] [L291] RET transmit1() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1] [L299] COND TRUE t2_st == 0 [L300] int tmp_ndt_3; [L301] tmp_ndt_3 = __VERIFIER_nondet_int() [L302] COND TRUE \read(tmp_ndt_3) [L304] t2_st = 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=1, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, tmp_ndt_3=-1] [L305] CALL transmit2() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=1, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=1] [L113] COND TRUE t2_pc == 0 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=1, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=1] [L124] COND TRUE 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=1, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=1] [L126] t2_pc = 1 [L127] t2_st = 2 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=1, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L305] RET transmit2() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, tmp_ndt_3=-1] [L261] COND TRUE 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, tmp_ndt_3=-1] [L264] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L231] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L234] COND TRUE m_st == 0 [L235] __retres1 = 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, __retres1=1, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L252] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, \result=1, __retres1=1, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L264] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, exists_runnable_thread()=1, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, tmp_ndt_3=-1] [L264] tmp = exists_runnable_thread() [L266] COND TRUE \read(tmp) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1, tmp_ndt_3=-1] [L271] COND TRUE m_st == 0 [L272] int tmp_ndt_1; [L273] tmp_ndt_1 = __VERIFIER_nondet_int() [L274] COND TRUE \read(tmp_ndt_1) [L276] m_st = 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=1, tmp_ndt_1=1, tmp_ndt_2=-1, tmp_ndt_3=-1] [L277] CALL master() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L37] COND TRUE m_pc == 0 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L48] COND TRUE 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L51] E_1 = 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L52] CALL immediate_notify() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L425] CALL activate_threads() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L387] int tmp ; [L388] int tmp___0 ; [L389] int tmp___1 ; VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L393] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L143] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L146] COND FALSE !(m_pc == 1) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L156] __retres1 = 0 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, __retres1=0, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L158] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, \result=0, __retres1=0, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L393] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, is_master_triggered()=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L393] tmp = is_master_triggered() [L395] COND FALSE !(\read(tmp)) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0] [L401] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L162] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L165] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L166] COND TRUE E_1 == 1 [L167] __retres1 = 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, __retres1=1, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L177] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, \result=1, __retres1=1, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L401] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, is_transmit1_triggered()=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0] [L401] tmp___0 = is_transmit1_triggered() [L403] COND TRUE \read(tmp___0) [L404] t1_st = 0 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0, tmp___0=1] [L409] CALL, EXPR is_transmit2_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L181] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L184] COND TRUE t2_pc == 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L185] COND FALSE !(E_2 == 1) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L194] __retres1 = 0 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, __retres1=0, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L196] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, \result=0, __retres1=0, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L409] RET, EXPR is_transmit2_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, is_transmit2_triggered()=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0, tmp___0=1] [L409] tmp___1 = is_transmit2_triggered() [L411] COND FALSE !(\read(tmp___1)) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0, tmp___0=1, tmp___1=0] [L425] RET activate_threads() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L52] RET immediate_notify() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=1, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L53] E_1 = 2 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L56] COND TRUE 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L58] m_pc = 1 [L59] m_st = 2 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L277] RET master() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=1, tmp_ndt_1=1, tmp_ndt_2=-1, tmp_ndt_3=-1] [L285] COND TRUE t1_st == 0 [L286] int tmp_ndt_2; [L287] tmp_ndt_2 = __VERIFIER_nondet_int() [L288] COND TRUE \read(tmp_ndt_2) [L290] t1_st = 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=1, tmp_ndt_1=1, tmp_ndt_2=1, tmp_ndt_3=-1] [L291] CALL transmit1() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L78] COND FALSE !(t1_pc == 0) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L81] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L97] E_2 = 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L98] CALL immediate_notify() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L425] CALL activate_threads() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L387] int tmp ; [L388] int tmp___0 ; [L389] int tmp___1 ; VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L393] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L143] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L146] COND TRUE m_pc == 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L147] COND FALSE !(M_E == 1) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L156] __retres1 = 0 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, __retres1=0, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L158] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, \result=0, __retres1=0, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L393] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, is_master_triggered()=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L393] tmp = is_master_triggered() [L395] COND FALSE !(\read(tmp)) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0] [L401] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L162] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L165] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L166] COND FALSE !(E_1 == 1) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L175] __retres1 = 0 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, __retres1=0, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L177] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, \result=0, __retres1=0, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L401] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, is_transmit1_triggered()=0, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0] [L401] tmp___0 = is_transmit1_triggered() [L403] COND FALSE !(\read(tmp___0)) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0, tmp___0=0] [L409] CALL, EXPR is_transmit2_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L181] int __retres1 ; VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L184] COND TRUE t2_pc == 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L185] COND TRUE E_2 == 1 [L186] __retres1 = 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, __retres1=1, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L196] return (__retres1); VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, \result=1, __retres1=1, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2] [L409] RET, EXPR is_transmit2_triggered() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, is_transmit2_triggered()=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=2, tmp=0, tmp___0=0] [L409] tmp___1 = is_transmit2_triggered() [L411] COND TRUE \read(tmp___1) [L412] t2_st = 0 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=0, tmp=0, tmp___0=0, tmp___1=1] [L425] RET activate_threads() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=0] [L98] RET immediate_notify() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=1, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=0] [L99] E_2 = 2 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=0] [L89] COND TRUE 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=1, t2_st=0] [L91] t1_pc = 1 [L92] t1_st = 2 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=2, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=2, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=0] [L291] RET transmit1() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=0, tmp=1, tmp_ndt_1=1, tmp_ndt_2=1, tmp_ndt_3=-1] [L299] COND TRUE t2_st == 0 [L300] int tmp_ndt_3; [L301] tmp_ndt_3 = __VERIFIER_nondet_int() [L302] COND TRUE \read(tmp_ndt_3) [L304] t2_st = 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=0, \old(t2_st)=0, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1, tmp=1, tmp_ndt_1=1, tmp_ndt_2=1, tmp_ndt_3=-1] [L305] CALL transmit2() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=1, \old(t2_st)=1, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1] [L113] COND FALSE !(t2_pc == 0) VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=1, \old(t2_st)=1, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1] [L116] COND TRUE t2_pc == 1 VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=1, \old(t2_st)=1, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1] [L132] CALL error() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=1, \old(t2_st)=1, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1] [L11] __VERIFIER_error() VAL [\old(E_1)=2, \old(E_2)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \old(T2_E)=2, \old(t2_i)=0, \old(t2_pc)=1, \old(t2_st)=1, E_1=2, E_2=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=1, t2_st=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 23 procedures, 169 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.9s, OverallIterations: 21, TraceHistogramMax: 3, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5019 SDtfs, 3818 SDslu, 4548 SDs, 0 SdLazy, 1812 SolverSat, 720 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2734 GetRequests, 2677 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7151occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.3s AutomataMinimizationTime, 20 MinimizatonAttempts, 1034 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 2795 NumberOfCodeBlocks, 2303 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 2723 ConstructedInterpolants, 0 QuantifiedInterpolants, 539957 SizeOfPredicates, 25 NumberOfNonLiveVariables, 10206 ConjunctsInSsa, 116 ConjunctsInUnsatCore, 21 InterpolantComputations, 20 PerfectInterpolantSequences, 631/660 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...