/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 DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:57:42,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:57:42,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:57:42,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 20:57:42,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:57:42,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:57:42,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:57:42,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:57:42,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:57:42,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:57:42,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:57:42,783 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:57:42,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:57:42,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:57:42,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:57:42,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:57:42,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:57:42,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:57:42,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:57:42,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:57:42,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:57:42,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:57:42,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:57:42,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:57:42,800 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 20:57:42,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 20:57:42,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 20:57:42,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 20:57:42,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 20:57:42,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 20:57:42,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 20:57:42,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 20:57:42,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 20:57:42,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 20:57:42,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 20:57:42,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 20:57:42,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 20:57:42,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 20:57:42,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:57:42,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:57:42,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:57:42,811 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 20:57:42,826 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:57:42,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:57:42,827 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:57:42,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:57:42,828 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:57:42,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:57:42,828 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:57:42,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:57:42,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:57:42,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:57:42,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:57:42,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:57:42,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:57:42,829 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:57:42,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:57:42,830 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:57:42,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:57:42,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:57:42,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:57:42,831 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:57:42,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:57:42,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:57:42,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:57:42,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:57:42,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:57:42,832 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:57:42,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:42,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:57:42,832 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:57:42,833 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 -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 20:57:43,106 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:57:43,122 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:57:43,126 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:57:43,127 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:57:43,128 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:57:43,129 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-07-21 20:57:43,195 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51e950526/382a9968912f474f9b7655be2db2436f/FLAG543b7f562 [2020-07-21 20:57:43,646 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:57:43,647 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-07-21 20:57:43,656 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51e950526/382a9968912f474f9b7655be2db2436f/FLAG543b7f562 [2020-07-21 20:57:43,996 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51e950526/382a9968912f474f9b7655be2db2436f [2020-07-21 20:57:44,007 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:57:44,011 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:57:44,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:57:44,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:57:44,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:57:44,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:57:43" (1/1) ... [2020-07-21 20:57:44,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@98434ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:57:44, skipping insertion in model container [2020-07-21 20:57:44,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:57:43" (1/1) ... [2020-07-21 20:57:44,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:57:44,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:57:44,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:57:44,307 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:57:44,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:57:44,381 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:57:44,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:57:44 WrapperNode [2020-07-21 20:57:44,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:57:44,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:57:44,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:57:44,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:57:44,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:57:44" (1/1) ... [2020-07-21 20:57:44,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:57:44" (1/1) ... [2020-07-21 20:57:44,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:57:44" (1/1) ... [2020-07-21 20:57:44,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:57:44" (1/1) ... [2020-07-21 20:57:44,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:57:44" (1/1) ... [2020-07-21 20:57:44,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:57:44" (1/1) ... [2020-07-21 20:57:44,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:57:44" (1/1) ... [2020-07-21 20:57:44,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:57:44,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:57:44,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:57:44,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:57:44,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:57:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:57:44,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:57:44,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:57:44,582 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-07-21 20:57:44,583 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-07-21 20:57:44,583 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-07-21 20:57:44,583 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-07-21 20:57:44,583 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-07-21 20:57:44,583 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-07-21 20:57:44,583 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-07-21 20:57:44,584 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-07-21 20:57:44,584 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-07-21 20:57:44,584 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-07-21 20:57:44,584 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-07-21 20:57:44,584 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-07-21 20:57:44,584 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-07-21 20:57:44,585 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-07-21 20:57:44,585 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-07-21 20:57:44,585 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-07-21 20:57:44,585 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-07-21 20:57:44,585 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-07-21 20:57:44,586 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:57:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:57:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:57:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-07-21 20:57:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-07-21 20:57:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-07-21 20:57:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-07-21 20:57:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-07-21 20:57:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-07-21 20:57:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-07-21 20:57:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-07-21 20:57:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-07-21 20:57:44,588 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-07-21 20:57:44,588 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-07-21 20:57:44,588 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-07-21 20:57:44,588 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-07-21 20:57:44,588 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-07-21 20:57:44,588 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-07-21 20:57:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-07-21 20:57:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-07-21 20:57:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-07-21 20:57:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:57:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:57:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:57:45,122 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:57:45,122 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 20:57:45,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:57:45 BoogieIcfgContainer [2020-07-21 20:57:45,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:57:45,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:57:45,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:57:45,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:57:45,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:57:43" (1/3) ... [2020-07-21 20:57:45,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b0f7eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:57:45, skipping insertion in model container [2020-07-21 20:57:45,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:57:44" (2/3) ... [2020-07-21 20:57:45,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b0f7eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:57:45, skipping insertion in model container [2020-07-21 20:57:45,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:57:45" (3/3) ... [2020-07-21 20:57:45,144 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2020-07-21 20:57:45,153 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:57:45,166 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:57:45,177 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:57:45,200 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:57:45,201 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:57:45,201 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:57:45,201 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:57:45,202 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:57:45,202 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:57:45,202 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:57:45,202 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:57:45,227 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states. [2020-07-21 20:57:45,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-07-21 20:57:45,238 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:57:45,239 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] [2020-07-21 20:57:45,239 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:57:45,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:57:45,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1024647557, now seen corresponding path program 1 times [2020-07-21 20:57:45,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:57:45,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963313285] [2020-07-21 20:57:45,253 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:45,447 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 20:57:45,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:57:45,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 20:57:45,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:57:45,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:57:45,522 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:57:45,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963313285] [2020-07-21 20:57:45,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:57:45,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:57:45,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373859222] [2020-07-21 20:57:45,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:57:45,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:57:45,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:57:45,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:57:45,551 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 3 states. [2020-07-21 20:57:45,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:57:45,664 INFO L93 Difference]: Finished difference Result 366 states and 516 transitions. [2020-07-21 20:57:45,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:57:45,666 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-21 20:57:45,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:57:45,685 INFO L225 Difference]: With dead ends: 366 [2020-07-21 20:57:45,685 INFO L226 Difference]: Without dead ends: 234 [2020-07-21 20:57:45,691 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 [2020-07-21 20:57:45,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-07-21 20:57:45,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 226. [2020-07-21 20:57:45,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-07-21 20:57:45,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 302 transitions. [2020-07-21 20:57:45,783 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 302 transitions. Word has length 75 [2020-07-21 20:57:45,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:57:45,784 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 302 transitions. [2020-07-21 20:57:45,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:57:45,785 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 302 transitions. [2020-07-21 20:57:45,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-07-21 20:57:45,790 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:57:45,791 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] [2020-07-21 20:57:46,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:46,006 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:57:46,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:57:46,008 INFO L82 PathProgramCache]: Analyzing trace with hash 106614370, now seen corresponding path program 1 times [2020-07-21 20:57:46,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:57:46,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [387733088] [2020-07-21 20:57:46,009 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:46,150 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:57:46,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:57:46,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:57:46,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:57:46,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:57:46,207 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:57:46,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [387733088] [2020-07-21 20:57:46,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:57:46,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:57:46,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455841126] [2020-07-21 20:57:46,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:57:46,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:57:46,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:57:46,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:57:46,216 INFO L87 Difference]: Start difference. First operand 226 states and 302 transitions. Second operand 3 states. [2020-07-21 20:57:46,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:57:46,285 INFO L93 Difference]: Finished difference Result 622 states and 856 transitions. [2020-07-21 20:57:46,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:57:46,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-07-21 20:57:46,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:57:46,292 INFO L225 Difference]: With dead ends: 622 [2020-07-21 20:57:46,293 INFO L226 Difference]: Without dead ends: 421 [2020-07-21 20:57:46,296 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 [2020-07-21 20:57:46,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-07-21 20:57:46,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 415. [2020-07-21 20:57:46,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-07-21 20:57:46,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 556 transitions. [2020-07-21 20:57:46,367 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 556 transitions. Word has length 76 [2020-07-21 20:57:46,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:57:46,368 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 556 transitions. [2020-07-21 20:57:46,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:57:46,370 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 556 transitions. [2020-07-21 20:57:46,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-07-21 20:57:46,375 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:57:46,375 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] [2020-07-21 20:57:46,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:46,577 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:57:46,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:57:46,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1201390399, now seen corresponding path program 1 times [2020-07-21 20:57:46,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:57:46,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111581611] [2020-07-21 20:57:46,579 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:46,663 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 20:57:46,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:57:46,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 20:57:46,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:57:46,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:57:46,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:57:46,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111581611] [2020-07-21 20:57:46,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:57:46,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 20:57:46,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874242750] [2020-07-21 20:57:46,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:57:46,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:57:46,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:57:46,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:57:46,738 INFO L87 Difference]: Start difference. First operand 415 states and 556 transitions. Second operand 6 states. [2020-07-21 20:57:46,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:57:46,833 INFO L93 Difference]: Finished difference Result 751 states and 1016 transitions. [2020-07-21 20:57:46,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 20:57:46,833 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2020-07-21 20:57:46,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:57:46,843 INFO L225 Difference]: With dead ends: 751 [2020-07-21 20:57:46,843 INFO L226 Difference]: Without dead ends: 430 [2020-07-21 20:57:46,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:57:46,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-07-21 20:57:46,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2020-07-21 20:57:46,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-07-21 20:57:46,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 568 transitions. [2020-07-21 20:57:46,919 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 568 transitions. Word has length 76 [2020-07-21 20:57:46,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:57:46,921 INFO L479 AbstractCegarLoop]: Abstraction has 430 states and 568 transitions. [2020-07-21 20:57:46,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:57:46,921 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 568 transitions. [2020-07-21 20:57:46,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-07-21 20:57:46,928 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:57:46,929 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] [2020-07-21 20:57:47,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:47,142 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:57:47,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:57:47,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1721769599, now seen corresponding path program 1 times [2020-07-21 20:57:47,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:57:47,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785685725] [2020-07-21 20:57:47,144 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:47,233 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:57:47,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:57:47,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:57:47,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:57:47,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:57:47,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:57:47,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785685725] [2020-07-21 20:57:47,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:57:47,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:57:47,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349757329] [2020-07-21 20:57:47,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:57:47,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:57:47,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:57:47,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:57:47,290 INFO L87 Difference]: Start difference. First operand 430 states and 568 transitions. Second operand 3 states. [2020-07-21 20:57:47,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:57:47,378 INFO L93 Difference]: Finished difference Result 1223 states and 1665 transitions. [2020-07-21 20:57:47,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:57:47,378 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-07-21 20:57:47,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:57:47,387 INFO L225 Difference]: With dead ends: 1223 [2020-07-21 20:57:47,387 INFO L226 Difference]: Without dead ends: 818 [2020-07-21 20:57:47,390 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 [2020-07-21 20:57:47,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2020-07-21 20:57:47,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 810. [2020-07-21 20:57:47,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 810 states. [2020-07-21 20:57:47,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1080 transitions. [2020-07-21 20:57:47,472 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1080 transitions. Word has length 76 [2020-07-21 20:57:47,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:57:47,473 INFO L479 AbstractCegarLoop]: Abstraction has 810 states and 1080 transitions. [2020-07-21 20:57:47,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:57:47,473 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1080 transitions. [2020-07-21 20:57:47,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-07-21 20:57:47,476 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:57:47,477 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] [2020-07-21 20:57:47,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:47,691 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:57:47,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:57:47,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1503303426, now seen corresponding path program 1 times [2020-07-21 20:57:47,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:57:47,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1929523746] [2020-07-21 20:57:47,694 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:47,778 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 20:57:47,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:57:47,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 20:57:47,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:57:47,812 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:57:47,813 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:57:47,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1929523746] [2020-07-21 20:57:47,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:57:47,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:57:47,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735013828] [2020-07-21 20:57:47,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:57:47,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:57:47,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:57:47,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:57:47,815 INFO L87 Difference]: Start difference. First operand 810 states and 1080 transitions. Second operand 3 states. [2020-07-21 20:57:47,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:57:47,904 INFO L93 Difference]: Finished difference Result 2335 states and 3259 transitions. [2020-07-21 20:57:47,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:57:47,904 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2020-07-21 20:57:47,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:57:47,916 INFO L225 Difference]: With dead ends: 2335 [2020-07-21 20:57:47,916 INFO L226 Difference]: Without dead ends: 1552 [2020-07-21 20:57:47,922 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 [2020-07-21 20:57:47,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2020-07-21 20:57:48,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1552. [2020-07-21 20:57:48,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1552 states. [2020-07-21 20:57:48,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 2133 transitions. [2020-07-21 20:57:48,020 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 2133 transitions. Word has length 95 [2020-07-21 20:57:48,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:57:48,021 INFO L479 AbstractCegarLoop]: Abstraction has 1552 states and 2133 transitions. [2020-07-21 20:57:48,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:57:48,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 2133 transitions. [2020-07-21 20:57:48,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-21 20:57:48,028 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:57:48,028 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] [2020-07-21 20:57:48,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:48,243 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:57:48,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:57:48,244 INFO L82 PathProgramCache]: Analyzing trace with hash -198256709, now seen corresponding path program 1 times [2020-07-21 20:57:48,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:57:48,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1547659430] [2020-07-21 20:57:48,245 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:48,322 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 20:57:48,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:57:48,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 20:57:48,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:57:48,399 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-07-21 20:57:48,399 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:57:48,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1547659430] [2020-07-21 20:57:48,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:57:48,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:57:48,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417106420] [2020-07-21 20:57:48,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:57:48,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:57:48,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:57:48,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:57:48,402 INFO L87 Difference]: Start difference. First operand 1552 states and 2133 transitions. Second operand 3 states. [2020-07-21 20:57:48,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:57:48,496 INFO L93 Difference]: Finished difference Result 3014 states and 4077 transitions. [2020-07-21 20:57:48,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:57:48,497 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2020-07-21 20:57:48,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:57:48,509 INFO L225 Difference]: With dead ends: 3014 [2020-07-21 20:57:48,510 INFO L226 Difference]: Without dead ends: 1751 [2020-07-21 20:57:48,517 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:57:48,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2020-07-21 20:57:48,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1748. [2020-07-21 20:57:48,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1748 states. [2020-07-21 20:57:48,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2239 transitions. [2020-07-21 20:57:48,611 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2239 transitions. Word has length 163 [2020-07-21 20:57:48,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:57:48,612 INFO L479 AbstractCegarLoop]: Abstraction has 1748 states and 2239 transitions. [2020-07-21 20:57:48,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:57:48,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2239 transitions. [2020-07-21 20:57:48,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 20:57:48,616 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:57:48,616 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] [2020-07-21 20:57:48,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:48,832 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:57:48,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:57:48,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1093423065, now seen corresponding path program 1 times [2020-07-21 20:57:48,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:57:48,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1250091058] [2020-07-21 20:57:48,834 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:48,895 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 20:57:48,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:57:48,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 20:57:48,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:57:48,934 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-21 20:57:48,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:57:48,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1250091058] [2020-07-21 20:57:48,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:57:48,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 20:57:48,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739570392] [2020-07-21 20:57:48,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:57:48,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:57:48,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:57:48,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:57:48,937 INFO L87 Difference]: Start difference. First operand 1748 states and 2239 transitions. Second operand 6 states. [2020-07-21 20:57:49,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:57:49,033 INFO L93 Difference]: Finished difference Result 3127 states and 4078 transitions. [2020-07-21 20:57:49,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 20:57:49,034 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2020-07-21 20:57:49,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:57:49,043 INFO L225 Difference]: With dead ends: 3127 [2020-07-21 20:57:49,043 INFO L226 Difference]: Without dead ends: 1404 [2020-07-21 20:57:49,049 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 [2020-07-21 20:57:49,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2020-07-21 20:57:49,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 1404. [2020-07-21 20:57:49,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1404 states. [2020-07-21 20:57:49,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 1776 transitions. [2020-07-21 20:57:49,139 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 1776 transitions. Word has length 129 [2020-07-21 20:57:49,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:57:49,140 INFO L479 AbstractCegarLoop]: Abstraction has 1404 states and 1776 transitions. [2020-07-21 20:57:49,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:57:49,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 1776 transitions. [2020-07-21 20:57:49,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 20:57:49,143 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:57:49,143 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] [2020-07-21 20:57:49,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:49,357 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:57:49,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:57:49,358 INFO L82 PathProgramCache]: Analyzing trace with hash -785707881, now seen corresponding path program 1 times [2020-07-21 20:57:49,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:57:49,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982755230] [2020-07-21 20:57:49,358 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:49,445 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:57:49,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:57:49,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 20:57:49,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:57:49,492 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-21 20:57:49,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:57:49,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [982755230] [2020-07-21 20:57:49,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:57:49,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:57:49,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926524118] [2020-07-21 20:57:49,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:57:49,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:57:49,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:57:49,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:57:49,495 INFO L87 Difference]: Start difference. First operand 1404 states and 1776 transitions. Second operand 5 states. [2020-07-21 20:57:50,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:57:50,116 INFO L93 Difference]: Finished difference Result 4228 states and 5521 transitions. [2020-07-21 20:57:50,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 20:57:50,117 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-07-21 20:57:50,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:57:50,136 INFO L225 Difference]: With dead ends: 4228 [2020-07-21 20:57:50,137 INFO L226 Difference]: Without dead ends: 2847 [2020-07-21 20:57:50,143 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 [2020-07-21 20:57:50,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states. [2020-07-21 20:57:50,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 2628. [2020-07-21 20:57:50,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2628 states. [2020-07-21 20:57:50,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2628 states to 2628 states and 3275 transitions. [2020-07-21 20:57:50,299 INFO L78 Accepts]: Start accepts. Automaton has 2628 states and 3275 transitions. Word has length 129 [2020-07-21 20:57:50,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:57:50,300 INFO L479 AbstractCegarLoop]: Abstraction has 2628 states and 3275 transitions. [2020-07-21 20:57:50,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:57:50,300 INFO L276 IsEmpty]: Start isEmpty. Operand 2628 states and 3275 transitions. [2020-07-21 20:57:50,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 20:57:50,303 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:57:50,303 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] [2020-07-21 20:57:50,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:50,518 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:57:50,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:57:50,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1536094037, now seen corresponding path program 1 times [2020-07-21 20:57:50,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:57:50,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482488472] [2020-07-21 20:57:50,519 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:50,599 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:57:50,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:57:50,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 20:57:50,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:57:50,635 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-21 20:57:50,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:57:50,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482488472] [2020-07-21 20:57:50,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:57:50,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:57:50,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176138816] [2020-07-21 20:57:50,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:57:50,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:57:50,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:57:50,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:57:50,638 INFO L87 Difference]: Start difference. First operand 2628 states and 3275 transitions. Second operand 5 states. [2020-07-21 20:57:50,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:57:50,954 INFO L93 Difference]: Finished difference Result 5233 states and 6611 transitions. [2020-07-21 20:57:50,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 20:57:50,955 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-07-21 20:57:50,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:57:50,973 INFO L225 Difference]: With dead ends: 5233 [2020-07-21 20:57:50,973 INFO L226 Difference]: Without dead ends: 2628 [2020-07-21 20:57:50,982 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 [2020-07-21 20:57:50,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2628 states. [2020-07-21 20:57:51,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2628 to 2628. [2020-07-21 20:57:51,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2628 states. [2020-07-21 20:57:51,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2628 states to 2628 states and 3203 transitions. [2020-07-21 20:57:51,142 INFO L78 Accepts]: Start accepts. Automaton has 2628 states and 3203 transitions. Word has length 129 [2020-07-21 20:57:51,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:57:51,142 INFO L479 AbstractCegarLoop]: Abstraction has 2628 states and 3203 transitions. [2020-07-21 20:57:51,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:57:51,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2628 states and 3203 transitions. [2020-07-21 20:57:51,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 20:57:51,147 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:57:51,148 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] [2020-07-21 20:57:51,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:51,363 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:57:51,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:57:51,364 INFO L82 PathProgramCache]: Analyzing trace with hash -365526695, now seen corresponding path program 1 times [2020-07-21 20:57:51,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:57:51,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1367766714] [2020-07-21 20:57:51,365 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:51,455 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:57:51,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:57:51,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 20:57:51,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:57:51,500 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-21 20:57:51,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:57:51,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1367766714] [2020-07-21 20:57:51,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:57:51,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:57:51,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476617865] [2020-07-21 20:57:51,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:57:51,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:57:51,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:57:51,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:57:51,502 INFO L87 Difference]: Start difference. First operand 2628 states and 3203 transitions. Second operand 5 states. [2020-07-21 20:57:52,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:57:52,038 INFO L93 Difference]: Finished difference Result 4958 states and 6145 transitions. [2020-07-21 20:57:52,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 20:57:52,039 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-07-21 20:57:52,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:57:52,051 INFO L225 Difference]: With dead ends: 4958 [2020-07-21 20:57:52,051 INFO L226 Difference]: Without dead ends: 2019 [2020-07-21 20:57:52,060 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 [2020-07-21 20:57:52,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2019 states. [2020-07-21 20:57:52,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2019 to 1952. [2020-07-21 20:57:52,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1952 states. [2020-07-21 20:57:52,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1952 states to 1952 states and 2303 transitions. [2020-07-21 20:57:52,222 INFO L78 Accepts]: Start accepts. Automaton has 1952 states and 2303 transitions. Word has length 129 [2020-07-21 20:57:52,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:57:52,223 INFO L479 AbstractCegarLoop]: Abstraction has 1952 states and 2303 transitions. [2020-07-21 20:57:52,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:57:52,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1952 states and 2303 transitions. [2020-07-21 20:57:52,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 20:57:52,225 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:57:52,225 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] [2020-07-21 20:57:52,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:52,440 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:57:52,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:57:52,441 INFO L82 PathProgramCache]: Analyzing trace with hash 473506967, now seen corresponding path program 1 times [2020-07-21 20:57:52,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:57:52,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1423248370] [2020-07-21 20:57:52,442 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:52,535 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:57:52,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 20:57:52,535 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 20:57:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 20:57:52,565 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 20:57:52,696 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 20:57:52,696 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 20:57:52,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:57:53,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:57:53 BoogieIcfgContainer [2020-07-21 20:57:53,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:57:53,044 INFO L168 Benchmark]: Toolchain (without parser) took 9034.08 ms. Allocated memory was 137.9 MB in the beginning and 344.5 MB in the end (delta: 206.6 MB). Free memory was 102.1 MB in the beginning and 236.2 MB in the end (delta: -134.1 MB). Peak memory consumption was 72.5 MB. Max. memory is 7.1 GB. [2020-07-21 20:57:53,045 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 137.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 20:57:53,051 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.03 ms. Allocated memory is still 137.9 MB. Free memory was 101.7 MB in the beginning and 88.5 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2020-07-21 20:57:53,052 INFO L168 Benchmark]: Boogie Preprocessor took 124.75 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 88.5 MB in the beginning and 179.2 MB in the end (delta: -90.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2020-07-21 20:57:53,053 INFO L168 Benchmark]: RCFGBuilder took 624.01 ms. Allocated memory is still 201.9 MB. Free memory was 179.2 MB in the beginning and 148.4 MB in the end (delta: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. [2020-07-21 20:57:53,055 INFO L168 Benchmark]: TraceAbstraction took 7903.44 ms. Allocated memory was 201.9 MB in the beginning and 344.5 MB in the end (delta: 142.6 MB). Free memory was 148.4 MB in the beginning and 236.2 MB in the end (delta: -87.8 MB). Peak memory consumption was 54.8 MB. Max. memory is 7.1 GB. [2020-07-21 20:57:53,062 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 137.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 369.03 ms. Allocated memory is still 137.9 MB. Free memory was 101.7 MB in the beginning and 88.5 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.75 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 88.5 MB in the beginning and 179.2 MB in the end (delta: -90.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 624.01 ms. Allocated memory is still 201.9 MB. Free memory was 179.2 MB in the beginning and 148.4 MB in the end (delta: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7903.44 ms. Allocated memory was 201.9 MB in the beginning and 344.5 MB in the end (delta: 142.6 MB). Free memory was 148.4 MB in the beginning and 236.2 MB in the end (delta: -87.8 MB). Peak memory consumption was 54.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] int m_pc = 0; [L16] int t1_pc = 0; [L17] int 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: 7.7s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1976 SDtfs, 1395 SDslu, 2270 SDs, 0 SdLazy, 796 SolverSat, 334 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1074 GetRequests, 1043 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2628occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 311 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1206 NumberOfCodeBlocks, 939 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1067 ConstructedInterpolants, 0 QuantifiedInterpolants, 170647 SizeOfPredicates, 14 NumberOfNonLiveVariables, 3214 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 244/244 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...