/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:59:49,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 14:59:49,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 14:59:49,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 14:59:49,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 14:59:49,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 14:59:49,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 14:59:49,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 14:59:49,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 14:59:49,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 14:59:49,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 14:59:49,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 14:59:49,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 14:59:49,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 14:59:49,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 14:59:49,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 14:59:49,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 14:59:49,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 14:59:49,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 14:59:49,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 14:59:49,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 14:59:49,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 14:59:49,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 14:59:49,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 14:59:49,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 14:59:49,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 14:59:49,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 14:59:49,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 14:59:49,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 14:59:49,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 14:59:49,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 14:59:49,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 14:59:49,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 14:59:49,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 14:59:49,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 14:59:49,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 14:59:49,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 14:59:49,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 14:59:49,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 14:59:49,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 14:59:49,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 14:59:49,157 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 14:59:49,172 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:59:49,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:59:49,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:59:49,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:59:49,174 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:59:49,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:59:49,175 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:59:49,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:59:49,175 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:59:49,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:59:49,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:59:49,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:59:49,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:59:49,176 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:59:49,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:59:49,176 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:59:49,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:59:49,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:59:49,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:59:49,177 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:59:49,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:59:49,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:59:49,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:59:49,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:59:49,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:59:49,178 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:59:49,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:59:49,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:59:49,179 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:59:49,179 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 14:59:49,505 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:59:49,525 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:59:49,530 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:59:49,532 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:59:49,532 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:59:49,534 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-07-20 14:59:49,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c69d634b4/bdbde3c2154c4a57a7f02e49d245b3ca/FLAG388314f45 [2020-07-20 14:59:50,123 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:59:50,124 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-07-20 14:59:50,134 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c69d634b4/bdbde3c2154c4a57a7f02e49d245b3ca/FLAG388314f45 [2020-07-20 14:59:50,472 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c69d634b4/bdbde3c2154c4a57a7f02e49d245b3ca [2020-07-20 14:59:50,482 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:59:50,486 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:59:50,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:59:50,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:59:50,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:59:50,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:59:50" (1/1) ... [2020-07-20 14:59:50,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@233eb4b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:59:50, skipping insertion in model container [2020-07-20 14:59:50,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:59:50" (1/1) ... [2020-07-20 14:59:50,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:59:50,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:59:50,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:59:50,774 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:59:50,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:59:50,847 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:59:50,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:59:50 WrapperNode [2020-07-20 14:59:50,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:59:50,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:59:50,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:59:50,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:59:50,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:59:50" (1/1) ... [2020-07-20 14:59:50,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:59:50" (1/1) ... [2020-07-20 14:59:50,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:59:50" (1/1) ... [2020-07-20 14:59:50,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:59:50" (1/1) ... [2020-07-20 14:59:50,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:59:50" (1/1) ... [2020-07-20 14:59:50,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:59:50" (1/1) ... [2020-07-20 14:59:50,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:59:50" (1/1) ... [2020-07-20 14:59:50,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:59:50,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:59:50,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:59:50,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:59:50,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:59:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:59:51,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:59:51,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:59:51,050 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-07-20 14:59:51,050 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-07-20 14:59:51,050 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-07-20 14:59:51,050 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-07-20 14:59:51,050 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-07-20 14:59:51,051 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-07-20 14:59:51,051 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-07-20 14:59:51,051 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-07-20 14:59:51,051 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-07-20 14:59:51,051 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-07-20 14:59:51,051 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-07-20 14:59:51,052 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-07-20 14:59:51,052 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-07-20 14:59:51,052 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-07-20 14:59:51,052 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-07-20 14:59:51,052 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-07-20 14:59:51,052 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-07-20 14:59:51,053 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-07-20 14:59:51,053 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:59:51,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:59:51,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 14:59:51,053 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-07-20 14:59:51,053 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-07-20 14:59:51,053 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-07-20 14:59:51,053 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-07-20 14:59:51,054 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-07-20 14:59:51,054 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-07-20 14:59:51,054 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-07-20 14:59:51,054 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-07-20 14:59:51,054 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-07-20 14:59:51,055 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-07-20 14:59:51,055 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-07-20 14:59:51,055 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-07-20 14:59:51,055 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-07-20 14:59:51,055 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-07-20 14:59:51,055 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-07-20 14:59:51,055 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-07-20 14:59:51,056 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-07-20 14:59:51,056 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-07-20 14:59:51,056 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:59:51,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:59:51,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:59:51,518 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:59:51,519 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 14:59:51,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:59:51 BoogieIcfgContainer [2020-07-20 14:59:51,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:59:51,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:59:51,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:59:51,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:59:51,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:59:50" (1/3) ... [2020-07-20 14:59:51,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2790ed61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:59:51, skipping insertion in model container [2020-07-20 14:59:51,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:59:50" (2/3) ... [2020-07-20 14:59:51,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2790ed61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:59:51, skipping insertion in model container [2020-07-20 14:59:51,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:59:51" (3/3) ... [2020-07-20 14:59:51,534 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2020-07-20 14:59:51,546 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:59:51,554 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:59:51,570 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:59:51,598 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:59:51,598 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:59:51,598 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:59:51,598 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:59:51,599 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:59:51,599 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:59:51,599 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:59:51,599 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:59:51,624 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states. [2020-07-20 14:59:51,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-07-20 14:59:51,636 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:59:51,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:59:51,637 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:59:51,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:59:51,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1024647557, now seen corresponding path program 1 times [2020-07-20 14:59:51,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:59:51,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667898036] [2020-07-20 14:59:51,651 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:59:51,808 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 14:59:51,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:59:51,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 14:59:51,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:59:51,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:59:51,903 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:59:51,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667898036] [2020-07-20 14:59:51,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:59:51,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:59:51,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172238109] [2020-07-20 14:59:51,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:59:51,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:59:51,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:59:51,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:59:51,936 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 3 states. [2020-07-20 14:59:52,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:59:52,068 INFO L93 Difference]: Finished difference Result 366 states and 516 transitions. [2020-07-20 14:59:52,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:59:52,073 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-20 14:59:52,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:59:52,112 INFO L225 Difference]: With dead ends: 366 [2020-07-20 14:59:52,112 INFO L226 Difference]: Without dead ends: 234 [2020-07-20 14:59:52,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:59:52,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-07-20 14:59:52,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 226. [2020-07-20 14:59:52,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-07-20 14:59:52,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 302 transitions. [2020-07-20 14:59:52,209 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 302 transitions. Word has length 75 [2020-07-20 14:59:52,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:59:52,210 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 302 transitions. [2020-07-20 14:59:52,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:59:52,211 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 302 transitions. [2020-07-20 14:59:52,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-07-20 14:59:52,216 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:59:52,216 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] [2020-07-20 14:59:52,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:59:52,431 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:59:52,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:59:52,432 INFO L82 PathProgramCache]: Analyzing trace with hash 106614370, now seen corresponding path program 1 times [2020-07-20 14:59:52,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:59:52,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685823657] [2020-07-20 14:59:52,434 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:59:52,572 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 14:59:52,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:59:52,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:59:52,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:59:52,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:59:52,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:59:52,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685823657] [2020-07-20 14:59:52,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:59:52,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:59:52,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542470881] [2020-07-20 14:59:52,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:59:52,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:59:52,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:59:52,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:59:52,639 INFO L87 Difference]: Start difference. First operand 226 states and 302 transitions. Second operand 3 states. [2020-07-20 14:59:52,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:59:52,705 INFO L93 Difference]: Finished difference Result 622 states and 856 transitions. [2020-07-20 14:59:52,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:59:52,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-07-20 14:59:52,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:59:52,713 INFO L225 Difference]: With dead ends: 622 [2020-07-20 14:59:52,713 INFO L226 Difference]: Without dead ends: 421 [2020-07-20 14:59:52,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:59:52,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-07-20 14:59:52,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 415. [2020-07-20 14:59:52,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-07-20 14:59:52,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 556 transitions. [2020-07-20 14:59:52,810 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 556 transitions. Word has length 76 [2020-07-20 14:59:52,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:59:52,810 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 556 transitions. [2020-07-20 14:59:52,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:59:52,811 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 556 transitions. [2020-07-20 14:59:52,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-07-20 14:59:52,814 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:59:52,814 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] [2020-07-20 14:59:53,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:59:53,028 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:59:53,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:59:53,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1201390399, now seen corresponding path program 1 times [2020-07-20 14:59:53,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:59:53,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2105613243] [2020-07-20 14:59:53,030 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:59:53,105 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 14:59:53,106 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:59:53,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:59:53,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:59:53,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:59:53,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:59:53,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2105613243] [2020-07-20 14:59:53,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:59:53,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:59:53,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378483115] [2020-07-20 14:59:53,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:59:53,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:59:53,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:59:53,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:59:53,143 INFO L87 Difference]: Start difference. First operand 415 states and 556 transitions. Second operand 3 states. [2020-07-20 14:59:53,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:59:53,219 INFO L93 Difference]: Finished difference Result 1178 states and 1628 transitions. [2020-07-20 14:59:53,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:59:53,220 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-07-20 14:59:53,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:59:53,228 INFO L225 Difference]: With dead ends: 1178 [2020-07-20 14:59:53,228 INFO L226 Difference]: Without dead ends: 788 [2020-07-20 14:59:53,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:59:53,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2020-07-20 14:59:53,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 780. [2020-07-20 14:59:53,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2020-07-20 14:59:53,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1055 transitions. [2020-07-20 14:59:53,319 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1055 transitions. Word has length 76 [2020-07-20 14:59:53,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:59:53,320 INFO L479 AbstractCegarLoop]: Abstraction has 780 states and 1055 transitions. [2020-07-20 14:59:53,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:59:53,320 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1055 transitions. [2020-07-20 14:59:53,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-07-20 14:59:53,324 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:59:53,325 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:59:53,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:59:53,540 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:59:53,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:59:53,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1503303426, now seen corresponding path program 1 times [2020-07-20 14:59:53,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:59:53,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [658202564] [2020-07-20 14:59:53,542 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:59:53,621 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 14:59:53,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:59:53,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 14:59:53,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:59:53,680 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:59:53,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:59:53,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [658202564] [2020-07-20 14:59:53,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:59:53,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:59:53,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249701690] [2020-07-20 14:59:53,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:59:53,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:59:53,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:59:53,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:59:53,685 INFO L87 Difference]: Start difference. First operand 780 states and 1055 transitions. Second operand 3 states. [2020-07-20 14:59:53,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:59:53,820 INFO L93 Difference]: Finished difference Result 2245 states and 3186 transitions. [2020-07-20 14:59:53,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:59:53,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2020-07-20 14:59:53,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:59:53,838 INFO L225 Difference]: With dead ends: 2245 [2020-07-20 14:59:53,839 INFO L226 Difference]: Without dead ends: 1492 [2020-07-20 14:59:53,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:59:53,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2020-07-20 14:59:53,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1492. [2020-07-20 14:59:53,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1492 states. [2020-07-20 14:59:53,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 2086 transitions. [2020-07-20 14:59:53,964 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 2086 transitions. Word has length 95 [2020-07-20 14:59:53,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:59:53,965 INFO L479 AbstractCegarLoop]: Abstraction has 1492 states and 2086 transitions. [2020-07-20 14:59:53,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:59:53,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 2086 transitions. [2020-07-20 14:59:53,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-20 14:59:53,972 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:59:53,972 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:59:54,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:59:54,188 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:59:54,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:59:54,188 INFO L82 PathProgramCache]: Analyzing trace with hash 301276929, now seen corresponding path program 1 times [2020-07-20 14:59:54,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:59:54,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310528467] [2020-07-20 14:59:54,189 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:59:54,271 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 14:59:54,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:59:54,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 14:59:54,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:59:54,337 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-07-20 14:59:54,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:59:54,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310528467] [2020-07-20 14:59:54,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:59:54,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:59:54,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358251885] [2020-07-20 14:59:54,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:59:54,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:59:54,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:59:54,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:59:54,343 INFO L87 Difference]: Start difference. First operand 1492 states and 2086 transitions. Second operand 3 states. [2020-07-20 14:59:54,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:59:54,443 INFO L93 Difference]: Finished difference Result 2874 states and 3952 transitions. [2020-07-20 14:59:54,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:59:54,444 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2020-07-20 14:59:54,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:59:54,457 INFO L225 Difference]: With dead ends: 2874 [2020-07-20 14:59:54,457 INFO L226 Difference]: Without dead ends: 1671 [2020-07-20 14:59:54,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:59:54,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2020-07-20 14:59:54,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1668. [2020-07-20 14:59:54,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1668 states. [2020-07-20 14:59:54,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2176 transitions. [2020-07-20 14:59:54,573 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2176 transitions. Word has length 163 [2020-07-20 14:59:54,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:59:54,574 INFO L479 AbstractCegarLoop]: Abstraction has 1668 states and 2176 transitions. [2020-07-20 14:59:54,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:59:54,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2176 transitions. [2020-07-20 14:59:54,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 14:59:54,581 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:59:54,581 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:59:54,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:59:54,796 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:59:54,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:59:54,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1914892441, now seen corresponding path program 1 times [2020-07-20 14:59:54,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:59:54,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040633393] [2020-07-20 14:59:54,816 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:59:54,905 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 14:59:54,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:59:54,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 14:59:54,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:59:54,967 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-20 14:59:54,967 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:59:54,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040633393] [2020-07-20 14:59:54,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:59:54,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:59:54,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881663109] [2020-07-20 14:59:54,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:59:54,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:59:54,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:59:54,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:59:54,971 INFO L87 Difference]: Start difference. First operand 1668 states and 2176 transitions. Second operand 5 states. [2020-07-20 14:59:55,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:59:55,980 INFO L93 Difference]: Finished difference Result 5178 states and 7041 transitions. [2020-07-20 14:59:55,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 14:59:55,981 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-07-20 14:59:55,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:59:56,022 INFO L225 Difference]: With dead ends: 5178 [2020-07-20 14:59:56,022 INFO L226 Difference]: Without dead ends: 3539 [2020-07-20 14:59:56,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:59:56,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3539 states. [2020-07-20 14:59:56,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3539 to 3184. [2020-07-20 14:59:56,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3184 states. [2020-07-20 14:59:56,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 4100 transitions. [2020-07-20 14:59:56,324 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 4100 transitions. Word has length 129 [2020-07-20 14:59:56,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:59:56,325 INFO L479 AbstractCegarLoop]: Abstraction has 3184 states and 4100 transitions. [2020-07-20 14:59:56,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:59:56,325 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 4100 transitions. [2020-07-20 14:59:56,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 14:59:56,331 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:59:56,331 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:59:56,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:59:56,546 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:59:56,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:59:56,547 INFO L82 PathProgramCache]: Analyzing trace with hash -58272937, now seen corresponding path program 1 times [2020-07-20 14:59:56,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:59:56,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294718521] [2020-07-20 14:59:56,548 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:59:56,632 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 14:59:56,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:59:56,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 14:59:56,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:59:56,685 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-20 14:59:56,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:59:56,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294718521] [2020-07-20 14:59:56,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:59:56,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:59:56,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379568183] [2020-07-20 14:59:56,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:59:56,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:59:56,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:59:56,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:59:56,688 INFO L87 Difference]: Start difference. First operand 3184 states and 4100 transitions. Second operand 5 states. [2020-07-20 14:59:57,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:59:57,197 INFO L93 Difference]: Finished difference Result 6339 states and 8283 transitions. [2020-07-20 14:59:57,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 14:59:57,198 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-07-20 14:59:57,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:59:57,224 INFO L225 Difference]: With dead ends: 6339 [2020-07-20 14:59:57,225 INFO L226 Difference]: Without dead ends: 3184 [2020-07-20 14:59:57,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:59:57,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3184 states. [2020-07-20 14:59:57,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3184 to 3184. [2020-07-20 14:59:57,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3184 states. [2020-07-20 14:59:57,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 4004 transitions. [2020-07-20 14:59:57,425 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 4004 transitions. Word has length 129 [2020-07-20 14:59:57,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:59:57,425 INFO L479 AbstractCegarLoop]: Abstraction has 3184 states and 4004 transitions. [2020-07-20 14:59:57,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:59:57,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 4004 transitions. [2020-07-20 14:59:57,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 14:59:57,431 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:59:57,431 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:59:57,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:59:57,645 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:59:57,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:59:57,645 INFO L82 PathProgramCache]: Analyzing trace with hash -232748707, now seen corresponding path program 1 times [2020-07-20 14:59:57,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:59:57,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1517683293] [2020-07-20 14:59:57,646 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:59:57,711 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 14:59:57,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:59:57,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 14:59:57,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:59:57,733 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-20 14:59:57,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:59:57,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1517683293] [2020-07-20 14:59:57,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:59:57,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:59:57,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271264168] [2020-07-20 14:59:57,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:59:57,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:59:57,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:59:57,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:59:57,736 INFO L87 Difference]: Start difference. First operand 3184 states and 4004 transitions. Second operand 3 states. [2020-07-20 14:59:57,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:59:57,882 INFO L93 Difference]: Finished difference Result 5685 states and 7150 transitions. [2020-07-20 14:59:57,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:59:57,882 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-07-20 14:59:57,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:59:57,899 INFO L225 Difference]: With dead ends: 5685 [2020-07-20 14:59:57,900 INFO L226 Difference]: Without dead ends: 2525 [2020-07-20 14:59:57,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:59:57,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2525 states. [2020-07-20 14:59:58,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2525 to 2525. [2020-07-20 14:59:58,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2525 states. [2020-07-20 14:59:58,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2525 states to 2525 states and 3177 transitions. [2020-07-20 14:59:58,041 INFO L78 Accepts]: Start accepts. Automaton has 2525 states and 3177 transitions. Word has length 129 [2020-07-20 14:59:58,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:59:58,042 INFO L479 AbstractCegarLoop]: Abstraction has 2525 states and 3177 transitions. [2020-07-20 14:59:58,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:59:58,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2525 states and 3177 transitions. [2020-07-20 14:59:58,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 14:59:58,045 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:59:58,045 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:59:58,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:59:58,260 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:59:58,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:59:58,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1959893669, now seen corresponding path program 1 times [2020-07-20 14:59:58,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:59:58,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [92933470] [2020-07-20 14:59:58,262 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:59:58,332 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 14:59:58,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:59:58,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 14:59:58,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:59:58,370 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-07-20 14:59:58,371 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:59:58,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [92933470] [2020-07-20 14:59:58,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:59:58,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 14:59:58,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169836650] [2020-07-20 14:59:58,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:59:58,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:59:58,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:59:58,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:59:58,373 INFO L87 Difference]: Start difference. First operand 2525 states and 3177 transitions. Second operand 6 states. [2020-07-20 14:59:58,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:59:58,513 INFO L93 Difference]: Finished difference Result 5106 states and 6576 transitions. [2020-07-20 14:59:58,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 14:59:58,514 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2020-07-20 14:59:58,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:59:58,530 INFO L225 Difference]: With dead ends: 5106 [2020-07-20 14:59:58,530 INFO L226 Difference]: Without dead ends: 2605 [2020-07-20 14:59:58,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:59:58,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2020-07-20 14:59:58,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 2605. [2020-07-20 14:59:58,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2605 states. [2020-07-20 14:59:58,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 3221 transitions. [2020-07-20 14:59:58,724 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 3221 transitions. Word has length 129 [2020-07-20 14:59:58,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:59:58,724 INFO L479 AbstractCegarLoop]: Abstraction has 2605 states and 3221 transitions. [2020-07-20 14:59:58,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:59:58,725 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 3221 transitions. [2020-07-20 14:59:58,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 14:59:58,727 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:59:58,728 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:59:58,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:59:58,941 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:59:58,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:59:58,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1513604251, now seen corresponding path program 1 times [2020-07-20 14:59:58,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:59:58,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584707279] [2020-07-20 14:59:58,942 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:59:59,020 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 14:59:59,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:59:59,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 14:59:59,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:59:59,060 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-20 14:59:59,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:59:59,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1584707279] [2020-07-20 14:59:59,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:59:59,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:59:59,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518647834] [2020-07-20 14:59:59,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:59:59,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:59:59,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:59:59,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:59:59,063 INFO L87 Difference]: Start difference. First operand 2605 states and 3221 transitions. Second operand 5 states. [2020-07-20 14:59:59,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:59:59,564 INFO L93 Difference]: Finished difference Result 5424 states and 6848 transitions. [2020-07-20 14:59:59,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 14:59:59,565 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-07-20 14:59:59,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:59:59,582 INFO L225 Difference]: With dead ends: 5424 [2020-07-20 14:59:59,582 INFO L226 Difference]: Without dead ends: 2841 [2020-07-20 14:59:59,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:59:59,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states. [2020-07-20 14:59:59,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 2709. [2020-07-20 14:59:59,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2709 states. [2020-07-20 14:59:59,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2709 states to 2709 states and 3267 transitions. [2020-07-20 14:59:59,820 INFO L78 Accepts]: Start accepts. Automaton has 2709 states and 3267 transitions. Word has length 129 [2020-07-20 14:59:59,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:59:59,822 INFO L479 AbstractCegarLoop]: Abstraction has 2709 states and 3267 transitions. [2020-07-20 14:59:59,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:59:59,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2709 states and 3267 transitions. [2020-07-20 14:59:59,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 14:59:59,825 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:59:59,825 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 15:00:00,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:00,040 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:00,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:00,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1942329383, now seen corresponding path program 1 times [2020-07-20 15:00:00,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:00,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55662160] [2020-07-20 15:00:00,042 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:00,133 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 15:00:00,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 15:00:00,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 15:00:00,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 15:00:00,182 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-20 15:00:00,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 15:00:00,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55662160] [2020-07-20 15:00:00,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 15:00:00,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 15:00:00,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899725120] [2020-07-20 15:00:00,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 15:00:00,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 15:00:00,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 15:00:00,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 15:00:00,185 INFO L87 Difference]: Start difference. First operand 2709 states and 3267 transitions. Second operand 6 states. [2020-07-20 15:00:00,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 15:00:00,303 INFO L93 Difference]: Finished difference Result 4625 states and 5657 transitions. [2020-07-20 15:00:00,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 15:00:00,304 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2020-07-20 15:00:00,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 15:00:00,316 INFO L225 Difference]: With dead ends: 4625 [2020-07-20 15:00:00,316 INFO L226 Difference]: Without dead ends: 1936 [2020-07-20 15:00:00,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 15:00:00,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2020-07-20 15:00:00,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1936. [2020-07-20 15:00:00,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1936 states. [2020-07-20 15:00:00,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1936 states to 1936 states and 2287 transitions. [2020-07-20 15:00:00,436 INFO L78 Accepts]: Start accepts. Automaton has 1936 states and 2287 transitions. Word has length 129 [2020-07-20 15:00:00,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 15:00:00,436 INFO L479 AbstractCegarLoop]: Abstraction has 1936 states and 2287 transitions. [2020-07-20 15:00:00,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 15:00:00,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 2287 transitions. [2020-07-20 15:00:00,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 15:00:00,439 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 15:00:00,439 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 15:00:00,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:00,653 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 15:00:00,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 15:00:00,654 INFO L82 PathProgramCache]: Analyzing trace with hash 473506967, now seen corresponding path program 1 times [2020-07-20 15:00:00,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 15:00:00,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913429974] [2020-07-20 15:00:00,655 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:00,766 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 15:00:00,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 15:00:00,767 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 15:00:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 15:00:00,800 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 15:00:00,903 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 15:00:00,904 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 15:00:01,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 15:00:01,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 03:00:01 BoogieIcfgContainer [2020-07-20 15:00:01,236 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 15:00:01,239 INFO L168 Benchmark]: Toolchain (without parser) took 10754.54 ms. Allocated memory was 137.4 MB in the beginning and 404.8 MB in the end (delta: 267.4 MB). Free memory was 102.4 MB in the beginning and 133.2 MB in the end (delta: -30.8 MB). Peak memory consumption was 236.6 MB. Max. memory is 7.1 GB. [2020-07-20 15:00:01,240 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 15:00:01,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.99 ms. Allocated memory is still 137.4 MB. Free memory was 101.9 MB in the beginning and 88.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-07-20 15:00:01,241 INFO L168 Benchmark]: Boogie Preprocessor took 131.46 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 88.9 MB in the beginning and 178.2 MB in the end (delta: -89.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2020-07-20 15:00:01,242 INFO L168 Benchmark]: RCFGBuilder took 544.25 ms. Allocated memory is still 200.8 MB. Free memory was 178.2 MB in the beginning and 148.3 MB in the end (delta: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2020-07-20 15:00:01,243 INFO L168 Benchmark]: TraceAbstraction took 9709.99 ms. Allocated memory was 200.8 MB in the beginning and 404.8 MB in the end (delta: 203.9 MB). Free memory was 147.6 MB in the beginning and 133.2 MB in the end (delta: 14.5 MB). Peak memory consumption was 218.4 MB. Max. memory is 7.1 GB. [2020-07-20 15:00:01,246 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 361.99 ms. Allocated memory is still 137.4 MB. Free memory was 101.9 MB in the beginning and 88.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.46 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 88.9 MB in the beginning and 178.2 MB in the end (delta: -89.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 544.25 ms. Allocated memory is still 200.8 MB. Free memory was 178.2 MB in the beginning and 148.3 MB in the end (delta: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9709.99 ms. Allocated memory was 200.8 MB in the beginning and 404.8 MB in the end (delta: 203.9 MB). Free memory was 147.6 MB in the beginning and 133.2 MB in the end (delta: 14.5 MB). Peak memory consumption was 218.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] int m_pc = 0; [L16] int t1_pc = 0; [L17] int m_st ; [L18] int t1_st ; [L19] int m_i ; [L20] int t1_i ; [L21] int M_E = 2; [L22] int T1_E = 2; [L23] int E_1 = 2; VAL [\old(E_1)=9, \old(M_E)=10, \old(m_i)=11, \old(m_pc)=7, \old(m_st)=3, \old(T1_E)=8, \old(t1_i)=5, \old(t1_pc)=6, \old(t1_st)=4, E_1=2, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0] [L439] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0] [L443] CALL init_model() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0] [L354] m_i = 1 [L355] t1_i = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L443] RET init_model() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L444] CALL start_simulation() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L380] int kernel_st ; [L381] int tmp ; [L382] int tmp___0 ; [L386] kernel_st = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L387] FCALL update_channels() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L388] CALL init_threads() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L151] COND TRUE m_i == 1 [L152] m_st = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L156] COND TRUE t1_i == 1 [L157] t1_st = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L388] RET init_threads() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L389] CALL fire_delta_events() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L240] COND FALSE !(M_E == 0) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L245] COND FALSE !(T1_E == 0) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L250] COND FALSE !(E_1 == 0) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L389] RET fire_delta_events() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L390] CALL activate_threads() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L283] int tmp ; [L284] int tmp___0 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L288] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L102] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L105] COND FALSE !(m_pc == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L115] __retres1 = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, __retres1=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L117] return (__retres1); VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \result=0, __retres1=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L288] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, is_master_triggered()=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L288] tmp = is_master_triggered() [L290] COND FALSE !(\read(tmp)) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=0] [L296] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L121] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L124] COND FALSE !(t1_pc == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L134] __retres1 = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, __retres1=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L136] return (__retres1); VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \result=0, __retres1=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L296] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, is_transmit1_triggered()=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=0] [L296] tmp___0 = is_transmit1_triggered() [L298] COND FALSE !(\read(tmp___0)) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=0, tmp___0=0] [L390] RET activate_threads() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L391] CALL reset_delta_events() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L263] COND FALSE !(M_E == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L268] COND FALSE !(T1_E == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L273] COND FALSE !(E_1 == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L391] RET reset_delta_events() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L394] COND TRUE 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L397] kernel_st = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=1, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L398] CALL eval() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L187] int tmp ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L191] COND TRUE 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L194] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L166] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L169] COND TRUE m_st == 0 [L170] __retres1 = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, __retres1=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L182] return (__retres1); VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \result=1, __retres1=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L194] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, exists_runnable_thread()=1, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L194] tmp = exists_runnable_thread() [L196] COND TRUE \read(tmp) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=1] [L201] COND TRUE m_st == 0 [L202] int tmp_ndt_1; [L203] tmp_ndt_1 = __VERIFIER_nondet_int() [L204] COND FALSE !(\read(tmp_ndt_1)) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=1, tmp_ndt_1=0] [L215] COND TRUE t1_st == 0 [L216] int tmp_ndt_2; [L217] tmp_ndt_2 = __VERIFIER_nondet_int() [L218] COND TRUE \read(tmp_ndt_2) [L220] t1_st = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1] [L221] CALL transmit1() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L72] COND TRUE t1_pc == 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L83] COND TRUE 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L85] t1_pc = 1 [L86] t1_st = 2 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L221] RET transmit1() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1] [L191] COND TRUE 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1] [L194] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L166] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L169] COND TRUE m_st == 0 [L170] __retres1 = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, __retres1=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L182] return (__retres1); VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \result=1, __retres1=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L194] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, exists_runnable_thread()=1, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1] [L194] tmp = exists_runnable_thread() [L196] COND TRUE \read(tmp) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1] [L201] COND TRUE m_st == 0 [L202] int tmp_ndt_1; [L203] tmp_ndt_1 = __VERIFIER_nondet_int() [L204] COND TRUE \read(tmp_ndt_1) [L206] m_st = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=1, tmp_ndt_2=-1] [L207] CALL master() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L31] COND TRUE m_pc == 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L42] COND TRUE 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L45] E_1 = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L46] CALL immediate_notify() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L312] CALL activate_threads() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L283] int tmp ; [L284] int tmp___0 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L288] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L102] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L105] COND FALSE !(m_pc == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L115] __retres1 = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, __retres1=0, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L117] return (__retres1); VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \result=0, __retres1=0, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L288] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, is_master_triggered()=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L288] tmp = is_master_triggered() [L290] COND FALSE !(\read(tmp)) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=0] [L296] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L121] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L124] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L125] COND TRUE E_1 == 1 [L126] __retres1 = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, __retres1=1, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L136] return (__retres1); VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \result=1, __retres1=1, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L296] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, is_transmit1_triggered()=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=0] [L296] tmp___0 = is_transmit1_triggered() [L298] COND TRUE \read(tmp___0) [L299] t1_st = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, tmp=0, tmp___0=1] [L312] RET activate_threads() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L46] RET immediate_notify() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L47] E_1 = 2 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L50] COND TRUE 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L52] m_pc = 1 [L53] m_st = 2 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L207] RET master() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, tmp=1, tmp_ndt_1=1, tmp_ndt_2=-1] [L215] COND TRUE t1_st == 0 [L216] int tmp_ndt_2; [L217] tmp_ndt_2 = __VERIFIER_nondet_int() [L218] COND TRUE \read(tmp_ndt_2) [L220] t1_st = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, tmp=1, tmp_ndt_1=1, tmp_ndt_2=-1] [L221] CALL transmit1() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L72] COND FALSE !(t1_pc == 0) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L75] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L91] CALL error() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L11] __VERIFIER_error() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 139 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.5s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2131 SDtfs, 1548 SDslu, 2226 SDs, 0 SdLazy, 804 SolverSat, 334 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1255 GetRequests, 1223 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3184occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 512 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1388 NumberOfCodeBlocks, 775 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 1248 ConstructedInterpolants, 0 QuantifiedInterpolants, 200624 SizeOfPredicates, 14 NumberOfNonLiveVariables, 2947 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 314/314 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...