/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 14:38:09,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 14:38:09,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 14:38:09,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 14:38:09,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 14:38:09,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 14:38:09,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 14:38:09,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 14:38:09,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 14:38:09,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 14:38:09,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 14:38:09,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 14:38:09,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 14:38:09,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 14:38:09,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 14:38:09,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 14:38:09,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 14:38:09,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 14:38:09,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 14:38:09,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 14:38:09,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 14:38:09,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 14:38:09,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 14:38:09,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 14:38:09,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 14:38:09,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 14:38:09,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 14:38:09,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 14:38:09,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 14:38:09,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-07-21 14:38:09,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 14:38:09,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 14:38:09,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 14:38:09,488 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 14:38:09,504 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 14:38:09,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 14:38:09,506 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 14:38:09,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 14:38:09,506 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 14:38:09,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 14:38:09,506 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 14:38:09,507 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 14:38:09,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 14:38:09,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 14:38:09,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 14:38:09,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 14:38:09,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 14:38:09,508 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 14:38:09,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 14:38:09,508 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 14:38:09,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 14:38:09,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 14:38:09,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 14:38:09,509 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 14:38:09,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 14:38:09,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 14:38:09,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 14:38:09,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 14:38:09,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 14:38:09,510 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 14:38:09,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:09,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 14:38:09,511 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 14:38:09,511 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 14:38:09,834 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 14:38:09,848 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 14:38:09,852 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 14:38:09,853 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 14:38:09,854 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 14:38:09,855 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-07-21 14:38:09,942 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cff7c7a2/cdf4026e597f45bea8f7231c7ecd5807/FLAGe2df555d0 [2020-07-21 14:38:10,442 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 14:38:10,444 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-07-21 14:38:10,452 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cff7c7a2/cdf4026e597f45bea8f7231c7ecd5807/FLAGe2df555d0 [2020-07-21 14:38:10,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cff7c7a2/cdf4026e597f45bea8f7231c7ecd5807 [2020-07-21 14:38:10,790 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 14:38:10,793 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 14:38:10,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 14:38:10,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 14:38:10,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 14:38:10,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:38:10" (1/1) ... [2020-07-21 14:38:10,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@683bfa51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:38:10, skipping insertion in model container [2020-07-21 14:38:10,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:38:10" (1/1) ... [2020-07-21 14:38:10,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 14:38:10,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 14:38:11,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 14:38:11,060 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 14:38:11,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 14:38:11,120 INFO L208 MainTranslator]: Completed translation [2020-07-21 14:38:11,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:38:11 WrapperNode [2020-07-21 14:38:11,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 14:38:11,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 14:38:11,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 14:38:11,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 14:38:11,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:38:11" (1/1) ... [2020-07-21 14:38:11,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:38:11" (1/1) ... [2020-07-21 14:38:11,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:38:11" (1/1) ... [2020-07-21 14:38:11,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:38:11" (1/1) ... [2020-07-21 14:38:11,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:38:11" (1/1) ... [2020-07-21 14:38:11,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:38:11" (1/1) ... [2020-07-21 14:38:11,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:38:11" (1/1) ... [2020-07-21 14:38:11,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 14:38:11,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 14:38:11,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 14:38:11,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 14:38:11,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:38:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 14:38:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 14:38:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 14:38:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-07-21 14:38:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-07-21 14:38:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-07-21 14:38:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-07-21 14:38:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-07-21 14:38:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-07-21 14:38:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-07-21 14:38:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-07-21 14:38:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-07-21 14:38:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-07-21 14:38:11,318 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-07-21 14:38:11,318 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-07-21 14:38:11,318 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-07-21 14:38:11,318 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-07-21 14:38:11,318 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-07-21 14:38:11,318 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-07-21 14:38:11,319 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-07-21 14:38:11,319 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-07-21 14:38:11,319 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 14:38:11,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 14:38:11,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 14:38:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-07-21 14:38:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-07-21 14:38:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-07-21 14:38:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-07-21 14:38:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-07-21 14:38:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-07-21 14:38:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-07-21 14:38:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-07-21 14:38:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-07-21 14:38:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-07-21 14:38:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-07-21 14:38:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-07-21 14:38:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-07-21 14:38:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-07-21 14:38:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-07-21 14:38:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-07-21 14:38:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-07-21 14:38:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-07-21 14:38:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 14:38:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 14:38:11,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 14:38:11,837 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 14:38:11,838 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 14:38:11,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:38:11 BoogieIcfgContainer [2020-07-21 14:38:11,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 14:38:11,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 14:38:11,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 14:38:11,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 14:38:11,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 02:38:10" (1/3) ... [2020-07-21 14:38:11,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d2cbee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:38:11, skipping insertion in model container [2020-07-21 14:38:11,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:38:11" (2/3) ... [2020-07-21 14:38:11,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d2cbee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:38:11, skipping insertion in model container [2020-07-21 14:38:11,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:38:11" (3/3) ... [2020-07-21 14:38:11,853 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2020-07-21 14:38:11,865 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 14:38:11,873 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 14:38:11,888 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 14:38:11,913 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 14:38:11,914 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 14:38:11,914 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 14:38:11,914 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 14:38:11,914 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 14:38:11,914 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 14:38:11,915 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 14:38:11,915 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 14:38:11,939 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states. [2020-07-21 14:38:11,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-07-21 14:38:11,949 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:38:11,950 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 14:38:11,951 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:38:11,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:38:11,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1024647557, now seen corresponding path program 1 times [2020-07-21 14:38:11,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:38:11,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786333832] [2020-07-21 14:38:11,964 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:12,116 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 14:38:12,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:38:12,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 14:38:12,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:38:12,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:38:12,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:38:12,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [786333832] [2020-07-21 14:38:12,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:38:12,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 14:38:12,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795156899] [2020-07-21 14:38:12,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 14:38:12,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:38:12,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 14:38:12,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 14:38:12,228 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 3 states. [2020-07-21 14:38:12,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:38:12,336 INFO L93 Difference]: Finished difference Result 366 states and 516 transitions. [2020-07-21 14:38:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 14:38:12,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-21 14:38:12,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:38:12,357 INFO L225 Difference]: With dead ends: 366 [2020-07-21 14:38:12,357 INFO L226 Difference]: Without dead ends: 234 [2020-07-21 14:38:12,363 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 14:38:12,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-07-21 14:38:12,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 226. [2020-07-21 14:38:12,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-07-21 14:38:12,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 302 transitions. [2020-07-21 14:38:12,455 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 302 transitions. Word has length 75 [2020-07-21 14:38:12,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:38:12,456 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 302 transitions. [2020-07-21 14:38:12,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 14:38:12,456 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 302 transitions. [2020-07-21 14:38:12,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-07-21 14:38:12,462 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:38:12,462 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 14:38:12,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:12,679 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:38:12,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:38:12,680 INFO L82 PathProgramCache]: Analyzing trace with hash 106614370, now seen corresponding path program 1 times [2020-07-21 14:38:12,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:38:12,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593341062] [2020-07-21 14:38:12,681 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:12,805 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:38:12,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:38:12,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 14:38:12,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:38:12,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:38:12,863 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:38:12,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593341062] [2020-07-21 14:38:12,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:38:12,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 14:38:12,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279425584] [2020-07-21 14:38:12,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 14:38:12,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:38:12,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 14:38:12,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 14:38:12,867 INFO L87 Difference]: Start difference. First operand 226 states and 302 transitions. Second operand 3 states. [2020-07-21 14:38:12,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:38:12,936 INFO L93 Difference]: Finished difference Result 622 states and 856 transitions. [2020-07-21 14:38:12,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 14:38:12,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-07-21 14:38:12,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:38:12,944 INFO L225 Difference]: With dead ends: 622 [2020-07-21 14:38:12,944 INFO L226 Difference]: Without dead ends: 421 [2020-07-21 14:38:12,948 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 14:38:12,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-07-21 14:38:13,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 415. [2020-07-21 14:38:13,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-07-21 14:38:13,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 556 transitions. [2020-07-21 14:38:13,036 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 556 transitions. Word has length 76 [2020-07-21 14:38:13,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:38:13,036 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 556 transitions. [2020-07-21 14:38:13,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 14:38:13,037 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 556 transitions. [2020-07-21 14:38:13,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-07-21 14:38:13,041 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:38:13,041 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 14:38:13,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:13,254 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:38:13,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:38:13,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1201390399, now seen corresponding path program 1 times [2020-07-21 14:38:13,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:38:13,256 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2027326008] [2020-07-21 14:38:13,257 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:13,356 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:38:13,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:38:13,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 14:38:13,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:38:13,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:38:13,417 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:38:13,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2027326008] [2020-07-21 14:38:13,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:38:13,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 14:38:13,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946832264] [2020-07-21 14:38:13,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 14:38:13,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:38:13,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 14:38:13,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 14:38:13,419 INFO L87 Difference]: Start difference. First operand 415 states and 556 transitions. Second operand 3 states. [2020-07-21 14:38:13,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:38:13,487 INFO L93 Difference]: Finished difference Result 1178 states and 1628 transitions. [2020-07-21 14:38:13,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 14:38:13,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-07-21 14:38:13,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:38:13,497 INFO L225 Difference]: With dead ends: 1178 [2020-07-21 14:38:13,497 INFO L226 Difference]: Without dead ends: 788 [2020-07-21 14:38:13,502 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 14:38:13,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2020-07-21 14:38:13,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 780. [2020-07-21 14:38:13,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2020-07-21 14:38:13,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1055 transitions. [2020-07-21 14:38:13,575 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1055 transitions. Word has length 76 [2020-07-21 14:38:13,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:38:13,576 INFO L479 AbstractCegarLoop]: Abstraction has 780 states and 1055 transitions. [2020-07-21 14:38:13,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 14:38:13,576 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1055 transitions. [2020-07-21 14:38:13,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-07-21 14:38:13,590 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:38:13,590 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 14:38:13,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:13,807 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:38:13,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:38:13,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1503303426, now seen corresponding path program 1 times [2020-07-21 14:38:13,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:38:13,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825468967] [2020-07-21 14:38:13,811 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:13,887 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 14:38:13,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:38:13,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 14:38:13,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:38:13,926 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 14:38:13,926 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:38:13,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1825468967] [2020-07-21 14:38:13,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:38:13,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 14:38:13,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875533028] [2020-07-21 14:38:13,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 14:38:13,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:38:13,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 14:38:13,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 14:38:13,930 INFO L87 Difference]: Start difference. First operand 780 states and 1055 transitions. Second operand 3 states. [2020-07-21 14:38:14,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:38:14,055 INFO L93 Difference]: Finished difference Result 2245 states and 3186 transitions. [2020-07-21 14:38:14,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 14:38:14,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2020-07-21 14:38:14,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:38:14,070 INFO L225 Difference]: With dead ends: 2245 [2020-07-21 14:38:14,071 INFO L226 Difference]: Without dead ends: 1492 [2020-07-21 14:38:14,076 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 14:38:14,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2020-07-21 14:38:14,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1492. [2020-07-21 14:38:14,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1492 states. [2020-07-21 14:38:14,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 2086 transitions. [2020-07-21 14:38:14,181 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 2086 transitions. Word has length 95 [2020-07-21 14:38:14,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:38:14,181 INFO L479 AbstractCegarLoop]: Abstraction has 1492 states and 2086 transitions. [2020-07-21 14:38:14,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 14:38:14,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 2086 transitions. [2020-07-21 14:38:14,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-21 14:38:14,189 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:38:14,190 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 14:38:14,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:14,404 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:38:14,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:38:14,406 INFO L82 PathProgramCache]: Analyzing trace with hash 301276929, now seen corresponding path program 1 times [2020-07-21 14:38:14,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:38:14,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [686536200] [2020-07-21 14:38:14,407 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:14,526 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 14:38:14,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:38:14,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 14:38:14,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:38:14,577 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 14:38:14,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:38:14,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [686536200] [2020-07-21 14:38:14,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:38:14,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 14:38:14,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543822026] [2020-07-21 14:38:14,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 14:38:14,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:38:14,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 14:38:14,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 14:38:14,580 INFO L87 Difference]: Start difference. First operand 1492 states and 2086 transitions. Second operand 3 states. [2020-07-21 14:38:14,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:38:14,677 INFO L93 Difference]: Finished difference Result 2874 states and 3952 transitions. [2020-07-21 14:38:14,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 14:38:14,678 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2020-07-21 14:38:14,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:38:14,691 INFO L225 Difference]: With dead ends: 2874 [2020-07-21 14:38:14,691 INFO L226 Difference]: Without dead ends: 1671 [2020-07-21 14:38:14,698 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 14:38:14,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2020-07-21 14:38:14,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1668. [2020-07-21 14:38:14,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1668 states. [2020-07-21 14:38:14,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2176 transitions. [2020-07-21 14:38:14,823 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2176 transitions. Word has length 163 [2020-07-21 14:38:14,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:38:14,825 INFO L479 AbstractCegarLoop]: Abstraction has 1668 states and 2176 transitions. [2020-07-21 14:38:14,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 14:38:14,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2176 transitions. [2020-07-21 14:38:14,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 14:38:14,830 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:38:14,831 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 14:38:15,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:15,046 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:38:15,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:38:15,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1914892441, now seen corresponding path program 1 times [2020-07-21 14:38:15,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:38:15,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102876911] [2020-07-21 14:38:15,049 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:15,122 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 14:38:15,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:38:15,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 14:38:15,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:38:15,177 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 14:38:15,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:38:15,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102876911] [2020-07-21 14:38:15,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:38:15,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 14:38:15,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348523298] [2020-07-21 14:38:15,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 14:38:15,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:38:15,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 14:38:15,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:38:15,180 INFO L87 Difference]: Start difference. First operand 1668 states and 2176 transitions. Second operand 5 states. [2020-07-21 14:38:15,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:38:15,938 INFO L93 Difference]: Finished difference Result 5178 states and 7041 transitions. [2020-07-21 14:38:15,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 14:38:15,938 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-07-21 14:38:15,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:38:15,965 INFO L225 Difference]: With dead ends: 5178 [2020-07-21 14:38:15,966 INFO L226 Difference]: Without dead ends: 3539 [2020-07-21 14:38:15,974 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 14:38:15,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3539 states. [2020-07-21 14:38:16,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3539 to 3184. [2020-07-21 14:38:16,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3184 states. [2020-07-21 14:38:16,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 4100 transitions. [2020-07-21 14:38:16,182 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 4100 transitions. Word has length 129 [2020-07-21 14:38:16,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:38:16,183 INFO L479 AbstractCegarLoop]: Abstraction has 3184 states and 4100 transitions. [2020-07-21 14:38:16,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 14:38:16,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 4100 transitions. [2020-07-21 14:38:16,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 14:38:16,187 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:38:16,187 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 14:38:16,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:16,401 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:38:16,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:38:16,401 INFO L82 PathProgramCache]: Analyzing trace with hash -58272937, now seen corresponding path program 1 times [2020-07-21 14:38:16,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:38:16,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727980418] [2020-07-21 14:38:16,402 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:16,474 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 14:38:16,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:38:16,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 14:38:16,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:38:16,521 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 14:38:16,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:38:16,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727980418] [2020-07-21 14:38:16,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:38:16,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 14:38:16,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456859921] [2020-07-21 14:38:16,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 14:38:16,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:38:16,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 14:38:16,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:38:16,524 INFO L87 Difference]: Start difference. First operand 3184 states and 4100 transitions. Second operand 5 states. [2020-07-21 14:38:17,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:38:17,017 INFO L93 Difference]: Finished difference Result 6339 states and 8283 transitions. [2020-07-21 14:38:17,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 14:38:17,018 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-07-21 14:38:17,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:38:17,046 INFO L225 Difference]: With dead ends: 6339 [2020-07-21 14:38:17,047 INFO L226 Difference]: Without dead ends: 3184 [2020-07-21 14:38:17,062 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 14:38:17,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3184 states. [2020-07-21 14:38:17,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3184 to 3184. [2020-07-21 14:38:17,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3184 states. [2020-07-21 14:38:17,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 4004 transitions. [2020-07-21 14:38:17,272 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 4004 transitions. Word has length 129 [2020-07-21 14:38:17,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:38:17,272 INFO L479 AbstractCegarLoop]: Abstraction has 3184 states and 4004 transitions. [2020-07-21 14:38:17,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 14:38:17,273 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 4004 transitions. [2020-07-21 14:38:17,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 14:38:17,277 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:38:17,278 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 14:38:17,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:17,492 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:38:17,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:38:17,492 INFO L82 PathProgramCache]: Analyzing trace with hash -232748707, now seen corresponding path program 1 times [2020-07-21 14:38:17,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:38:17,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227671599] [2020-07-21 14:38:17,493 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:17,569 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 14:38:17,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:38:17,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 14:38:17,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:38:17,644 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 14:38:17,647 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:38:17,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1227671599] [2020-07-21 14:38:17,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:38:17,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 14:38:17,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935646442] [2020-07-21 14:38:17,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 14:38:17,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:38:17,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 14:38:17,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 14:38:17,650 INFO L87 Difference]: Start difference. First operand 3184 states and 4004 transitions. Second operand 3 states. [2020-07-21 14:38:17,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:38:17,784 INFO L93 Difference]: Finished difference Result 5685 states and 7150 transitions. [2020-07-21 14:38:17,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 14:38:17,785 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-07-21 14:38:17,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:38:17,803 INFO L225 Difference]: With dead ends: 5685 [2020-07-21 14:38:17,803 INFO L226 Difference]: Without dead ends: 2525 [2020-07-21 14:38:17,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 14:38:17,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2525 states. [2020-07-21 14:38:17,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2525 to 2525. [2020-07-21 14:38:17,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2525 states. [2020-07-21 14:38:17,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2525 states to 2525 states and 3177 transitions. [2020-07-21 14:38:17,964 INFO L78 Accepts]: Start accepts. Automaton has 2525 states and 3177 transitions. Word has length 129 [2020-07-21 14:38:17,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:38:17,964 INFO L479 AbstractCegarLoop]: Abstraction has 2525 states and 3177 transitions. [2020-07-21 14:38:17,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 14:38:17,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2525 states and 3177 transitions. [2020-07-21 14:38:17,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 14:38:17,968 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:38:17,968 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 14:38:18,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:18,183 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:38:18,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:38:18,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1959893669, now seen corresponding path program 1 times [2020-07-21 14:38:18,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:38:18,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669395248] [2020-07-21 14:38:18,185 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:18,264 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 14:38:18,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:38:18,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 14:38:18,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:38:18,305 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-07-21 14:38:18,305 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:38:18,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669395248] [2020-07-21 14:38:18,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:38:18,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 14:38:18,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592340465] [2020-07-21 14:38:18,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 14:38:18,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:38:18,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 14:38:18,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 14:38:18,307 INFO L87 Difference]: Start difference. First operand 2525 states and 3177 transitions. Second operand 6 states. [2020-07-21 14:38:18,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:38:18,445 INFO L93 Difference]: Finished difference Result 5106 states and 6576 transitions. [2020-07-21 14:38:18,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 14:38:18,446 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2020-07-21 14:38:18,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:38:18,463 INFO L225 Difference]: With dead ends: 5106 [2020-07-21 14:38:18,463 INFO L226 Difference]: Without dead ends: 2605 [2020-07-21 14:38:18,475 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 14:38:18,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2020-07-21 14:38:18,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 2605. [2020-07-21 14:38:18,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2605 states. [2020-07-21 14:38:18,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 3221 transitions. [2020-07-21 14:38:18,682 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 3221 transitions. Word has length 129 [2020-07-21 14:38:18,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:38:18,683 INFO L479 AbstractCegarLoop]: Abstraction has 2605 states and 3221 transitions. [2020-07-21 14:38:18,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 14:38:18,683 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 3221 transitions. [2020-07-21 14:38:18,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 14:38:18,688 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:38:18,689 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 14:38:18,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:18,903 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:38:18,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:38:18,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1513604251, now seen corresponding path program 1 times [2020-07-21 14:38:18,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:38:18,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716235237] [2020-07-21 14:38:18,905 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:18,999 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:38:18,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:38:19,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 14:38:19,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:38:19,047 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 14:38:19,047 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:38:19,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716235237] [2020-07-21 14:38:19,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:38:19,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 14:38:19,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727512821] [2020-07-21 14:38:19,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 14:38:19,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:38:19,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 14:38:19,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:38:19,050 INFO L87 Difference]: Start difference. First operand 2605 states and 3221 transitions. Second operand 5 states. [2020-07-21 14:38:19,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:38:19,573 INFO L93 Difference]: Finished difference Result 5424 states and 6848 transitions. [2020-07-21 14:38:19,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 14:38:19,574 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-07-21 14:38:19,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:38:19,592 INFO L225 Difference]: With dead ends: 5424 [2020-07-21 14:38:19,592 INFO L226 Difference]: Without dead ends: 2841 [2020-07-21 14:38:19,602 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 14:38:19,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states. [2020-07-21 14:38:19,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 2709. [2020-07-21 14:38:19,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2709 states. [2020-07-21 14:38:19,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2709 states to 2709 states and 3267 transitions. [2020-07-21 14:38:19,813 INFO L78 Accepts]: Start accepts. Automaton has 2709 states and 3267 transitions. Word has length 129 [2020-07-21 14:38:19,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:38:19,814 INFO L479 AbstractCegarLoop]: Abstraction has 2709 states and 3267 transitions. [2020-07-21 14:38:19,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 14:38:19,814 INFO L276 IsEmpty]: Start isEmpty. Operand 2709 states and 3267 transitions. [2020-07-21 14:38:19,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 14:38:19,817 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:38:19,817 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 14:38:20,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:20,032 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:38:20,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:38:20,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1942329383, now seen corresponding path program 1 times [2020-07-21 14:38:20,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:38:20,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651682975] [2020-07-21 14:38:20,033 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:20,130 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:38:20,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:38:20,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 14:38:20,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:38:20,170 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 14:38:20,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:38:20,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651682975] [2020-07-21 14:38:20,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:38:20,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 14:38:20,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533912054] [2020-07-21 14:38:20,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 14:38:20,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:38:20,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 14:38:20,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 14:38:20,173 INFO L87 Difference]: Start difference. First operand 2709 states and 3267 transitions. Second operand 6 states. [2020-07-21 14:38:20,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:38:20,290 INFO L93 Difference]: Finished difference Result 4625 states and 5657 transitions. [2020-07-21 14:38:20,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 14:38:20,291 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2020-07-21 14:38:20,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:38:20,303 INFO L225 Difference]: With dead ends: 4625 [2020-07-21 14:38:20,303 INFO L226 Difference]: Without dead ends: 1936 [2020-07-21 14:38:20,313 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 14:38:20,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2020-07-21 14:38:20,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1936. [2020-07-21 14:38:20,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1936 states. [2020-07-21 14:38:20,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1936 states to 1936 states and 2287 transitions. [2020-07-21 14:38:20,410 INFO L78 Accepts]: Start accepts. Automaton has 1936 states and 2287 transitions. Word has length 129 [2020-07-21 14:38:20,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:38:20,411 INFO L479 AbstractCegarLoop]: Abstraction has 1936 states and 2287 transitions. [2020-07-21 14:38:20,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 14:38:20,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 2287 transitions. [2020-07-21 14:38:20,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 14:38:20,414 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:38:20,414 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 14:38:20,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:20,630 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:38:20,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:38:20,630 INFO L82 PathProgramCache]: Analyzing trace with hash 473506967, now seen corresponding path program 1 times [2020-07-21 14:38:20,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:38:20,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1696417007] [2020-07-21 14:38:20,631 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:20,722 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:38:20,722 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 14:38:20,722 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 14:38:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 14:38:20,755 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 14:38:20,866 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 14:38:20,866 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 14:38:21,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:38:21,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 02:38:21 BoogieIcfgContainer [2020-07-21 14:38:21,218 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 14:38:21,222 INFO L168 Benchmark]: Toolchain (without parser) took 10429.30 ms. Allocated memory was 137.9 MB in the beginning and 396.4 MB in the end (delta: 258.5 MB). Free memory was 102.4 MB in the beginning and 92.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 268.6 MB. Max. memory is 7.1 GB. [2020-07-21 14:38:21,222 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 14:38:21,226 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.44 ms. Allocated memory is still 137.9 MB. Free memory was 102.0 MB in the beginning and 89.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-07-21 14:38:21,227 INFO L168 Benchmark]: Boogie Preprocessor took 123.86 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 89.0 MB in the beginning and 177.7 MB in the end (delta: -88.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2020-07-21 14:38:21,228 INFO L168 Benchmark]: RCFGBuilder took 598.93 ms. Allocated memory is still 200.3 MB. Free memory was 177.7 MB in the beginning and 147.5 MB in the end (delta: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. [2020-07-21 14:38:21,228 INFO L168 Benchmark]: TraceAbstraction took 9372.13 ms. Allocated memory was 200.3 MB in the beginning and 396.4 MB in the end (delta: 196.1 MB). Free memory was 146.9 MB in the beginning and 92.3 MB in the end (delta: 54.5 MB). Peak memory consumption was 250.6 MB. Max. memory is 7.1 GB. [2020-07-21 14:38:21,233 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 326.44 ms. Allocated memory is still 137.9 MB. Free memory was 102.0 MB in the beginning and 89.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.86 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 89.0 MB in the beginning and 177.7 MB in the end (delta: -88.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 598.93 ms. Allocated memory is still 200.3 MB. Free memory was 177.7 MB in the beginning and 147.5 MB in the end (delta: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9372.13 ms. Allocated memory was 200.3 MB in the beginning and 396.4 MB in the end (delta: 196.1 MB). Free memory was 146.9 MB in the beginning and 92.3 MB in the end (delta: 54.5 MB). Peak memory consumption was 250.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] int m_pc = 0; [L16] int t1_pc = 0; [L17] int m_st ; [L18] int t1_st ; [L19] int m_i ; [L20] int t1_i ; [L21] int M_E = 2; [L22] int T1_E = 2; [L23] int E_1 = 2; VAL [\old(E_1)=9, \old(M_E)=10, \old(m_i)=11, \old(m_pc)=7, \old(m_st)=3, \old(T1_E)=8, \old(t1_i)=5, \old(t1_pc)=6, \old(t1_st)=4, E_1=2, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0] [L439] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0] [L443] CALL init_model() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0] [L354] m_i = 1 [L355] t1_i = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L443] RET init_model() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L444] CALL start_simulation() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L380] int kernel_st ; [L381] int tmp ; [L382] int tmp___0 ; [L386] kernel_st = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L387] FCALL update_channels() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L388] CALL init_threads() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L151] COND TRUE m_i == 1 [L152] m_st = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L156] COND TRUE t1_i == 1 [L157] t1_st = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L388] RET init_threads() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L389] CALL fire_delta_events() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L240] COND FALSE !(M_E == 0) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L245] COND FALSE !(T1_E == 0) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L250] COND FALSE !(E_1 == 0) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L389] RET fire_delta_events() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L390] CALL activate_threads() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L283] int tmp ; [L284] int tmp___0 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L288] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L102] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L105] COND FALSE !(m_pc == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L115] __retres1 = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, __retres1=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L117] return (__retres1); VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \result=0, __retres1=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L288] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, is_master_triggered()=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L288] tmp = is_master_triggered() [L290] COND FALSE !(\read(tmp)) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=0] [L296] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L121] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L124] COND FALSE !(t1_pc == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L134] __retres1 = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, __retres1=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L136] return (__retres1); VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \result=0, __retres1=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L296] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, is_transmit1_triggered()=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=0] [L296] tmp___0 = is_transmit1_triggered() [L298] COND FALSE !(\read(tmp___0)) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=0, tmp___0=0] [L390] RET activate_threads() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L391] CALL reset_delta_events() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L263] COND FALSE !(M_E == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L268] COND FALSE !(T1_E == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L273] COND FALSE !(E_1 == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L391] RET reset_delta_events() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L394] COND TRUE 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L397] kernel_st = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=1, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L398] CALL eval() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L187] int tmp ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L191] COND TRUE 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L194] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L166] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L169] COND TRUE m_st == 0 [L170] __retres1 = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, __retres1=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L182] return (__retres1); VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \result=1, __retres1=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L194] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, exists_runnable_thread()=1, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L194] tmp = exists_runnable_thread() [L196] COND TRUE \read(tmp) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=1] [L201] COND TRUE m_st == 0 [L202] int tmp_ndt_1; [L203] tmp_ndt_1 = __VERIFIER_nondet_int() [L204] COND FALSE !(\read(tmp_ndt_1)) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=1, tmp_ndt_1=0] [L215] COND TRUE t1_st == 0 [L216] int tmp_ndt_2; [L217] tmp_ndt_2 = __VERIFIER_nondet_int() [L218] COND TRUE \read(tmp_ndt_2) [L220] t1_st = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1] [L221] CALL transmit1() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L72] COND TRUE t1_pc == 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L83] COND TRUE 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L85] t1_pc = 1 [L86] t1_st = 2 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L221] RET transmit1() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1] [L191] COND TRUE 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1] [L194] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L166] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L169] COND TRUE m_st == 0 [L170] __retres1 = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, __retres1=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L182] return (__retres1); VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \result=1, __retres1=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L194] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, exists_runnable_thread()=1, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1] [L194] tmp = exists_runnable_thread() [L196] COND TRUE \read(tmp) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1] [L201] COND TRUE m_st == 0 [L202] int tmp_ndt_1; [L203] tmp_ndt_1 = __VERIFIER_nondet_int() [L204] COND TRUE \read(tmp_ndt_1) [L206] m_st = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=1, tmp_ndt_2=-1] [L207] CALL master() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L31] COND TRUE m_pc == 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L42] COND TRUE 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L45] E_1 = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L46] CALL immediate_notify() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L312] CALL activate_threads() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L283] int tmp ; [L284] int tmp___0 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L288] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L102] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L105] COND FALSE !(m_pc == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L115] __retres1 = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, __retres1=0, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L117] return (__retres1); VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \result=0, __retres1=0, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L288] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, is_master_triggered()=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L288] tmp = is_master_triggered() [L290] COND FALSE !(\read(tmp)) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=0] [L296] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L121] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L124] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L125] COND TRUE E_1 == 1 [L126] __retres1 = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, __retres1=1, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L136] return (__retres1); VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \result=1, __retres1=1, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L296] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, is_transmit1_triggered()=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=0] [L296] tmp___0 = is_transmit1_triggered() [L298] COND TRUE \read(tmp___0) [L299] t1_st = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, tmp=0, tmp___0=1] [L312] RET activate_threads() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L46] RET immediate_notify() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L47] E_1 = 2 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L50] COND TRUE 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L52] m_pc = 1 [L53] m_st = 2 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L207] RET master() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, tmp=1, tmp_ndt_1=1, tmp_ndt_2=-1] [L215] COND TRUE t1_st == 0 [L216] int tmp_ndt_2; [L217] tmp_ndt_2 = __VERIFIER_nondet_int() [L218] COND TRUE \read(tmp_ndt_2) [L220] t1_st = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, tmp=1, tmp_ndt_1=1, tmp_ndt_2=-1] [L221] CALL transmit1() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L72] COND FALSE !(t1_pc == 0) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L75] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L91] CALL error() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L11] __VERIFIER_error() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 139 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.1s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2131 SDtfs, 1548 SDslu, 2226 SDs, 0 SdLazy, 804 SolverSat, 334 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1255 GetRequests, 1223 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3184occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 512 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1388 NumberOfCodeBlocks, 967 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1248 ConstructedInterpolants, 0 QuantifiedInterpolants, 200624 SizeOfPredicates, 14 NumberOfNonLiveVariables, 3748 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 314/314 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...